{"id":215,"date":"2015-04-14T23:32:20","date_gmt":"2015-04-14T15:32:20","guid":{"rendered":"http:\/\/xxxsola.org\/?p=215"},"modified":"2015-04-14T23:35:16","modified_gmt":"2015-04-14T15:35:16","slug":"%e5%a4%a7%e6%a6%82%e6%98%af%e4%b8%aa%e7%bb%bc%e8%bf%b0%e5%9f%ba%e4%ba%8e%e6%99%ba%e8%83%bd%e5%a4%a9%e7%ba%bf%e5%8f%8a%e7%a9%ba%e6%97%b6%e7%bc%96%e7%a0%81%e6%8a%80%e6%9c%af%e7%9a%84%e5%b0%84%e9%a2%91","status":"publish","type":"post","link":"https:\/\/xxxsola.org\/cms\/215.html","title":{"rendered":"[\u5927\u6982\u662f\u4e2a\u7efc\u8ff0]RFID\u5728\u591a\u5e94\u7b54\u5668\u73af\u5883\u4e0b\u7684\u4e00\u79cd\u901a\u4fe1\u65b9\u6848"},"content":{"rendered":"

\u57fa\u4e8e\u667a\u80fd\u5929\u7ebf\u53ca\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u7684\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u5728\u591a\u5e94\u7b54\u5668\u73af\u5883\u4e0b\u7684\u901a\u4fe1\u65b9\u6848<\/p>\n

\u5173\u952e\u8bcd\uff1a\u667a\u80fd\u5929\u7ebf \u7a7a\u65f6\u7f16\u7801\uff08SD-CDMA\uff09\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\uff08RFID\uff09\u9632\u78b0\u649e<\/p>\n

\u6458\u8981\uff1a
\n\u5bf9\u73b0\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e2d\u667a\u80fd\u5929\u7ebf\u548c\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u8fdb\u884c\u4e86\u4ecb\u7ecd\u603b\u7ed3\uff0c\u5e76\u5bf9\u5c06\u5176\u79fb\u690d\u4e8e\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u4e4b\u540e\u6240\u5e26\u6765\u6027\u80fd\u63d0\u9ad8\u8fdb\u884c\u4e86\u521d\u6b65\u5206\u6790\u3002<\/p>\n

<\/p>\n

\u5f15<\/strong><\/p>\n

\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u5de5\u4f5c\u65f6\uff0c\u82e5\u5728\u67d0\u4e2a\u9605\u8bfb\u5668\u7684\u8bc6\u522b\u8303\u56f4\u5185\u5b58\u5728\u591a\u4e2a\u5e94\u7b54\u5668\uff0c\u5e76\u4e14\u9605\u8bfb\u5668\u65e0\u6cd5\u7ed9\u5e94\u7b54\u5668\u5206\u914d\u72ec\u7acb\u4fe1\u9053\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u5e94\u7b54\u5668\u51b2\u7a81\u73b0\u8c61\u3002\u800c\u65f6\u4e0b\u9488\u5bf9\u9632\u51b2\u7a81\u7684\u5404\u79cd\u89e3\u51b3\u65b9\u6848\uff0c\u5747\u4e3a\u8bbe\u8ba1\u4e86\u5404\u79cd\u9632\u51b2\u7a81\u7b97\u6cd5[1~12]\uff0c\u867d\u7136\u89e3\u51b3\u4e86\u51b2\u7a81\u95ee\u9898\uff0c\u4f46\u662f\u5374\u6216\u591a\u6216\u5c11\u5730\u589e\u52a0\u4e86\u901a\u4fe1\u65f6\u95f4\uff0c\u964d\u4f4e\u4e86\u7cfb\u7edf\u7684\u5de5\u4f5c\u6548\u7387\u3002\u6211\u4eec\u4ece\u7b2c\u4e09\u4ee3\u73b0\u4ee3\u79fb\u52a8\u901a\u4fe1\u6280\u672f\uff083G\uff09\u4e2d\u83b7\u5f97\u542f\u53d1\uff0c\u51c6\u5907\u63a2\u7d22\u5c06\u5176\u4e2d\u8bf8\u5982\u667a\u80fd\u5929\u7ebf\u3001\u7a7a\u65f6\u7f16\u7801\u7b49\u6280\u672f\u4ece\u79fb\u52a8\u901a\u4fe1\u9886\u57df\u5f15\u5165\u5c04\u9891\u8bc6\u522b\u9886\u57df\u7684\u53ef\u80fd\u6027\u4e0e\u4ef7\u503c\u6027\u3002<\/p>\n

\u667a\u80fd\u5929\u7ebf<\/strong><\/p>\n

\u76f8\u63a7\u9635\u5929\u7ebf<\/strong><\/p>\n

\u667a\u80fd\u5929\u7ebf\u6280\u672f\u6e90\u4e8e\u76f8\u63a7\u9635\u5929\u7ebf\u6280\u672f\u3002\u76f8\u63a7\u9635\u5929\u7ebf\u5229\u7528\u7535\u78c1\u6ce2\u5e72\u6d89\u4e0e\u53e0\u52a0\u539f\u7406\uff0c\u901a\u8fc7\u63a7\u5236\u5404\u4e2a\u5929\u7ebf\u5355\u5143\u7684\u76f8\u4f4d\u5dee\uff0c\u4f7f\u7535\u78c1\u6ce2\u5728\u7a7a\u95f4\u5e72\u6d89\u3001\u53e0\u52a0\u6210\u7279\u5b9a\u7684\u5f62\u72b6\u3002\u4e00\u822c\u6211\u4eec\u79f0\u63cf\u8ff0\u8fd9\u79cd\u5f62\u72b6\u7684\u51fd\u6570\u7684\u56fe\u50cf\u4e3a\u65b9\u5411\u56fe\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5404\u4e2a\u5929\u7ebf\u5355\u5143\u4e4b\u95f4\u5de5\u4f5c\u65f6\u4f1a\u5b58\u5728\u4e92\u8026\u6548\u5e94\uff0c\u4f46\u662f\u4e00\u822c\u5730\u5728\u521d\u6b65\u5206\u6790\u8fc7\u7a0b\u4e2d\u90fd\u4f1a\u5ffd\u7565\u4e92\u8026\u6548\u5e94\u3002\u540c\u65f6\u4e3a\u4e86\u7b80\u5316\u5206\u6790\u8fc7\u7a0b\uff0c\u6211\u4eec\u5728\u6b64\u4ec5\u4ecb\u7ecd\u7ebf\u9635\u5929\u7ebf\u7684\u76f8\u63a7\u539f\u7406[13]\uff1a
\n\u5747\u5300\u76f4\u7ebf\u5f0f\u5929\u7ebf\u9635\u6307\u591a\u4e2a\u5355\u5143\u5929\u7ebf\u7b49\u95f4\u8ddd\u6392\u5217\u5728\u4e00\u6761\u76f4\u7ebf\u4e0a\uff0c\u5404\u5355\u5143\u7684\u9988\u7535\u5e45\u5ea6\u76f8\u7b49\uff0c\u76f8\u4f4d\u5747\u5300\u9012\u53d8\uff08\u9012\u589e\u6216\u9012\u51cf\uff09\u3002<\/p>\n

\"1\"<\/p>\n

\u8bbe\u6709\u4e00\u4e2a[latex]N[\/latex]\u5355\u5143\u5747\u5300\u76f4\u7ebf\u9635\uff0c\u5355\u5143\u95f4\u8ddd\u4e3a[latex]d[\/latex]\uff0c\u5982\u56fe1\u6240\u793a\u3002\u5e8f\u53f7\u4e3a[latex]n[\/latex]\u7684\u5355\u5143\u5230\u8fdc\u533a\u67d0\u70b9\u7684\u8ddd\u79bb\u4e3a[latex]r_{n}[\/latex]\uff0c\u6fc0\u52b1\u7535\u6d41\u4e3a<\/p>\n

[latex]I_{n}=I_{0}e^{-jn\\alpha }[\/latex]\u00a0 [latex]n=1,2,3,…,N-1[\/latex]\u00a0\u00a0\u00a0\u00a0\u00a0 (1-1)<\/p>\n

\u5f0f\u4e2d\uff0c[latex]I_{0}[\/latex]\u4e3a\u7b2c\u4e00\u4e2a\u5355\u5143\u7684\u6fc0\u52b1\u7535\u6d41\uff0c[latex]\\alpha[\/latex]\u4e3a\u76f8\u90bb\u4e24\u5355\u5143\u7684\u6fc0\u52b1\u76f8\u4f4d\uff08[latex]\\alpha>0[\/latex]\u65f6\u4e3a\u9012\u51cf\uff09\u3002\u56fe\u4e2d\u5750\u6807\u539f\u70b9\u5230\u7b2c[latex]\\alpha[\/latex]\u4e2a\u5355\u5143\u7684\u4f4d\u7f6e\u77e2\u91cf\u4e3a[latex]\\vec{\\rho_{n}}=\\hat{z}nd[\/latex]\u3002<\/p>\n

\u5bf9\u4e8e\u8fdc\u533a\uff0c\u53ef\u8ba4\u4e3a\u5404\u5355\u5143\u5230\u67d0\u70b9\u7684\u5c04\u7ebf\u662f\u5e73\u884c\u7684\uff0c\u5e8f\u53f7\u4e3a[latex]n[\/latex]\u7684\u5355\u5143\u76f8\u5bf9\u4e8e\u7b2c\u4e00\u4e2a\u5355\u5143\u7684\u6ce2\u7a0b\u5dee\u4e3a\uff1a<\/p>\n

[latex]r-r_{n}=\\hat{r}\\cdot \\vec{\\rho_{n}}=nd\\cos\\theta [\/latex]\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(1-2)<\/p>\n

\u7b2c[latex]n[\/latex]\u4e2a\u5355\u5143\uff08\u4efb\u610f\u5f62\u5f0f\uff09\u5929\u7ebf\u7684\u8fdc\u533a\u8f90\u5c04\u573a\u53ef\u5199\u4f5c<\/p>\n

[latex]E_{n}=\\frac{C}{r_{n}}I_{n}e^{-j\\beta r_{n}}[\/latex]\u00a0\u00a0\u00a0\u00a0 [latex]n=0,1,2,…,.N-1[\/latex]\u00a0\u00a0\u00a0 (1-3)<\/p>\n

\u603b\u573a\u4e3a<\/p>\n

[latex]E_{T}=\\sum_{n=0}^{N-1}E_{n}=\\frac{C}{r_{0}}I_{0}e^{-j\\beta r_{0}}\\sum_{n=0}^{N-1}\\frac{I_{n}}{I_{0}}e^{-j\\beta(r_{n}-r)}=E_{0}\\sum_{n=0}^{N-1}e^(jn(\\beta d \\cos \\theta -\\alpha))[\/latex]
\n[latex]=E_{0}\\sum_{n=0}^{N-1}e^{jn\\Psi }=E_{0}f_{a}(\\Psi)[\/latex]\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (1-4)<\/p>\n

\u5f0f\u4e2d\u9635\u56e0\u5b50\u4e3a<\/p>\n

[latex]{{f}_{a}}\\left( \\Psi \\right)=\\underset{n=0}{\\overset{N-1}{\\mathop \\sum }}\\,{{e}^{jn\\Psi }}=1+{{e}^{j\\Psi }}+{{e}^{j2\\Psi }}+\\ldots +{{e}^{jn\\Psi }}+\\ldots +{{e}^{j\\left( N-1 \\right)\\Psi }}[\/latex]\u00a0\u00a0\u00a0\u00a0 (1-5)<\/p>\n

\u76f8\u90bb\u5355\u5143\u8f90\u5c04\u573a\u7684\u76f8\u4f4d\u5dee<\/p>\n

[latex]\\Psi=\\beta d\\cos \\theta -\\alpha[\/latex]\u00a0\u00a0\u00a0\u00a0 (1-6)<\/p>\n

\u7531(1-5)\u7b49\u53f7\u4e24\u8fb9\u540c\u4e58\u4ee5[latex]{{e}^{j\\Psi }}[\/latex]\uff0c\u5f97<\/p>\n

[latex]{{f}_{a}}\\left( \\Psi \\right){{e}^{j\\Psi }}={{e}^{j\\Psi }}+{{e}^{j2\\Psi }}+\\ldots +{{e}^{jn\\Psi }}+\\ldots +{{e}^{j\\left( N-1 \\right)\\Psi }}+{{e}^{jN\\Psi }}[\/latex]\u00a0\u00a0\u00a0\u00a0 (1-7)<\/p>\n

(1-5)\u4e0e(1-7)\u4e24\u5f0f\u76f8\u51cf\u5f97<\/p>\n

[latex]{{f}_{a}}\\left( \\Psi\u00a0 \\right)\\left( {{e}^{j\\Psi }}-1 \\right)={{e}^{jN\\Psi }}-1[\/latex]\u00a0\u00a0\u00a0 (1-8)<\/p>\n

\u6240\u4ee5<\/p>\n

[latex]{{f}_{a}}\\left( \\Psi\u00a0\\right)=\\frac{{{e}^{jN\\Psi }}-1}{{{e}^{j\\Psi }}-1}=\\frac{{{e}^{jN\\Psi \/2}}}{{{e}^{j\\Psi \/2}}}\\cdot \\frac{{{e}^{jN\\Psi \/2}}-{{e}^{-jN\\Psi \/2}}}{{{e}^{j\\Psi \/2}}-{{e}^{-j\\Psi \/2}}}={{e}^{j\\left( N-1 \\right)\\Psi \/2}}\\frac{\\sin \\left( N\\Psi \/2 \\right)}{\\sin \\left( \\Psi \/2 \\right)}[\/latex]\u00a0\u00a0\u00a0\u00a0\u00a0 (1-9)<\/p>\n

\u5bf9\u4e8e\u8f90\u5c04\u573a\u800c\u8a00\u4e00\u822c\u662f\u53d6\u6a21\u503c\uff0c\u56e0\u6b64\u7565\u53bb\u4e0a\u5f0f\u76f8\u4f4d\u56e0\u5b50\u5f97<\/p>\n

[latex]{{f}_{a}}\\left( \\Psi\u00a0 \\right)=\\frac{\\sin \\left( N\\Psi \/2 \\right)}{\\sin \\left( \\Psi \/2 \\right)}[\/latex]\u00a0\u00a0\u00a0\u00a0 (1-10)<\/p>\n

\u9635\u56e0\u5b50\u7684\u6700\u5927\u503c[latex]{{f}_{amax}}[\/latex]\u51fa\u73b0\u5728[latex]\\Psi =0[\/latex]\u5904\uff0c\u6709<\/p>\n

[latex]{{f}_{amax}}=\\underset{\\Psi \\to 0}{\\mathop{\\lim }}\\,\\frac{\\sin \\left( N\\Psi \/2 \\right)}{\\sin \\left( \\Psi \/2 \\right)}=N[\/latex]\u00a0\u00a0\u00a0\u00a0 (1-11)<\/p>\n

\u5f97\u5f52\u4e00\u5316\u9635\u56e0\u5b50\u4e3a<\/p>\n

[latex]F\\left( \\Psi \\right)=\\frac{\\sin \\left( N\\Psi \/2 \\right)}{N\\sin \\left( \\Psi \/2 \\right)}=\\frac{\\sin \\left[ \\frac{N}{2}\\left( \\beta d\\cos \\theta -\\alpha\\right) \\right]}{N\\sin \\left[ \\frac{1}{2}\\left( \\beta d\\cos \\theta -\\alpha\\right) \\right]}[\/latex]\u00a0\u00a0\u00a0\u00a0\u00a0 (1-12)<\/p>\n

\u7531\u6700\u5927\u503c\u6761\u4ef6\uff1a[latex]\\Psi=~\\beta d\\cos \\theta -\\alpha =0[\/latex]\uff0c\u53ef\u5f97<\/p>\n

[latex]\\cos {{\\theta }_{m}}=\\frac{\\alpha }{\\beta d}[\/latex]\u00a0\u00a0\u00a0\u00a0 (1-13)<\/p>\n

\u6b64\u5f0f\u8bf4\u660e\uff1a\u5747\u5300\u76f4\u7ebf\u9635\u7684\u9635\u56e0\u5b50\u6700\u5927\u8f90\u5c04\u65b9\u5411[latex]{{\\theta }_{m}}[\/latex]\u4e0e\u5355\u5143\u95f4\u8ddd[latex]d[\/latex] \u3001\u76f8\u90bb\u5355\u5143\u4e4b\u95f4\u7684\u9988\u7535\u76f8\u4f4d\u5dee[latex]\\alpha[\/latex]\u548c\u5de5\u4f5c\u9891\u7387\uff08\u6216\u6ce2\u957f\uff09\u6709\u5173\u3002\u82e5[latex]\\beta d[\/latex]\u4e0d\u53d8\uff0c\u6539\u53d8[latex]\\alpha[\/latex]\uff0c\u53ef\u6539\u53d8\u9635\u5217\u8f90\u5c04\u6ce2\u675f\u7684\u6307\u5411\uff0c\u4ece\u800c\u5b9e\u73b0\u6ce2\u675f\u7684\u7535\u626b\u63cf\uff0c\u8fd9\u5c31\u662f\u76f8\u63a7\u9635\u6ce2\u675f\u626b\u63cf\u7684\u57fa\u672c\u539f\u7406\u3002<\/p>\n

\u591a\u6ce2\u675f\u7cfb\u7edf<\/strong><\/p>\n

\u7b80\u5355\u7684\u76f8\u63a7\u9635\u5929\u7ebf\u7684\u65b9\u5411\u56fe\u4e00\u822c\u53ea\u6709\u5c11\u6570\u51e0\u4e2a\u4e3b\u74e3\uff0c\u4f46\u662f\u540e\u6765\u51fa\u73b0\u7684\u591a\u6ce2\u675f\u5929\u7ebf\uff08MBA\uff09\uff0c\u5176\u65b9\u5411\u56fe\u5374\u53ef\u4ee5\u62e5\u6709\u591a\u4e2a\u4e3b\u74e3\u6ce2\u675f[33~35]<\/sup>\u3002\u591a\u6ce2\u675f\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7\u7f51\u7edc\u6216\u8005\u901a\u8fc7\u900f\u955c\u5f62\u6210\uff0c\u8fd9\u91cc\u4ecb\u7ecd\u591a\u6ce2\u675f\u5f62\u6210\u7f51\u7edc\u4e2d\u6700\u4e3a\u7ecf\u5178\u7684Butler\u77e9\u9635[14~21][24]<\/sup>\uff1a<\/p>\n

\"2\"<\/p>\n

\u4e2d\u76843dB\u7535\u6865\u67094\u4e2a\u81c2\uff0c\u4e00\u79cd\u5178\u578b\u7684\u4e8c\u5206\u652f\u7535\u6865\u7684\u7ed3\u6784\u5982\u56fe3\uff0c\u5f53\u4fe1\u53f7\u4ece1\u81c2\u8f93\u5165\u65f6\uff0c\u5728\u4e2d\u5fc3\u9891\u7387\u5904\uff0c2\u81c2\u65e0\u4fe1\u53f7\u8f93\u51fa\uff0c3\u30014\u81c2\u4fe1\u53f7\u80fd\u91cf\u76f8\u7b49,\u76f8\u4f4d\u76f8\u5dee90\u3002<\/p>\n

\u56fe2\u6240\u793a\u4e3aButler\u53d1\u660e\u7684\u6ce2\u675f\u5f62\u6210\u7535\u8def\uff0c\u901a\u8fc7\u5bf93dB90\u7535\u6865\u7684\u5206\u6790\uff0c\u53ef\u4ee5\u770b\u51fa,\u82e5\u4fe1\u53f7\u4ece1\u53e3\u8f93\u5165\uff0c\u7ecf\u4e09\u5c42\u7535\u6865\u540e\uff0c1\u4e2a\u5355\u4f4d\u7684\u529f\u7387\u88ab8\u7b49\u5206\uff08-9dB\uff09\uff0c\u75311-8\u516b\u4e2a\u7aef\u53e3\u8f93\u51fa,\u8f93\u51fa\u7684\u529f\u7387\u5e45\u5ea6\u76f8\u7b49\u3001\u76f8\u4f4d\u968f\u4f4d\u7f6e\u53d8\u5316\u800c\u53d8\u5316\u3002\u540c\u6837\u82e5\u4fe1\u53f7\u4ece2-8\u53e3\u8f93\u5165,1-8\u540c\u6837\u8f93\u51fa\u7b49\u529f\u7387\u7684\u5e45\u5ea6\u5206\u5e03,\u76f8\u4f4d\u968f\u8f93\u5165\u4f4d\u7f6e\u53d8\u5316\u800c\u53d8\u5316\u3002<\/p>\n

\u8be5\u7535\u8def\u5229\u7528\u5fae\u6ce2\u529f\u5206\u5668\u548c\u79fb\u76f8\u5668\u7684\u7ec4\u5408\u5f62\u62108\u4e2a\u6ce2\u675f\u3002Butler\u77e9\u9635\uff08\u901a\u5e38\u8fd9\u6837\u79f0\u547c\u8be5\u7f51\u7edc\uff09\u662f\u5bf9\u5feb\u901f\u5085\u91cc\u53f6\u53d8\u6362\u7684\u6a21\u62df\u5b9e\u73b0\u3002\u5bf9\u4e8eN\u4e2a\u7b49\u5e45\u6fc0\u52b1\u9635\u5143\u7684Butler\u7ebf\u9635\uff0c\u5f53\u4fe1\u53f7\u4ecem\u7aef\u53e3\u8f93\u5165\u65f6\uff0c\u53ef\u5f97\u5176\u5e45\u5ea6\u65b9\u5411\u56fe\u4e3a<\/p>\n

[latex]\\beta d{{E}_{m}}\\left( \\theta\u00a0\\right)=\\frac{1}{\\sqrt{N}}\\underset{p=1}{\\overset{N}{\\mathop \\sum }}\\,{{\\text{e}}^{jp\\left( \\Psi +{{\\delta }_{m}} \\right)}}~~~~~~m=1,2,\\ldots ,N\/2[\/latex]<\/p>\n

\u5f0f\u4e2d\uff0c[latex]\\Psi =kd\\sin \\theta[\/latex]\uff1b[latex]k=\\frac{2\\pi }{\\lambda }[\/latex]\uff1b[latex]\\theta[\/latex]\u4e3a\u504f\u79bb\u7ebf\u9635\u6cd5\u7ebf\u7684\u89d2\u5ea6\uff1b[latex]d[\/latex]\u4e3a\u9635\u5143\u95f4\u8ddd\uff1b[latex]\\lambda[\/latex]\u4e3a\u81ea\u7531\u7a7a\u95f4\u6ce2\u957f\uff1b[latex]{{\\delta }_{m}}=\\pm \\left( 2m-1 \\right)\\frac{pi }{N}[\/latex]\u4e3a\u9635\u5185\u76f8\u4f4d\u5dee\u3002<\/p>\n

\u7531\u6b64\u53ef\u5f97Butler\u77e9\u9635\u591a\u6ce2\u675f\u5e45\u5ea6\u65b9\u5411\u56fe\u7684\u5f52\u4e00\u5316\u8ba1\u7b97\u516c\u5f0f<\/p>\n

[latex]F\\left( \\theta\u00a0 \\right)=\\left| \\frac{\\sin \\left( N\\frac{\\Psi +{{\\delta }_{m}}}{2} \\right)}{N\\sin \\frac{\\Psi +{{\\delta }_{m}}}{2}} \\right|[\/latex]<\/p>\n

\u4ee4[latex]\\Psi +{{\\delta }_{m}}=0[\/latex]\uff0c\u53ef\u5f97\u7b2c[latex]m[\/latex]\u4e2a\u6ce2\u675f\uff08\u5de6\u6216\u53f3\uff09\u6307\u5411[latex]{{\\theta }_{0m}}[\/latex]\uff08\u5373\u6ce2\u675f\u7684\u6700\u5927\u503c\u4f4d\u7f6e\uff09\u4e3a\uff1a<\/p>\n

[latex]{{\\theta }_{0m}}=\\text{arcsin}\\left( -\\frac{{{\\delta }_{m}}}{kd} \\right)[\/latex]<\/p>\n

\u56fe4\u5373\u4e3a\u5176\u65b9\u5411\u56fe\u56fe\u50cf\uff0c\u5176\u4e2d\u5404\u4e2a\u6ce2\u675f\u53ea\u753b\u5230\u5b83\u4eec\u7684\u7b2c\u4e00\u4e2a\u96f6\u70b9\u3002<\/p>\n

\"3\"<\/p>\n

\u7a7a\u5206\u7f16\u7801\u6280\u672f<\/strong><\/p>\n

\u667a\u80fd\u5929\u7ebf\u6240\u4ea7\u751f\u7684\u591a\u4e2a\u6ce2\u675f\uff0c\u53ef\u4ee5\u770b\u505a\u5229\u7528\u8fd9\u591a\u4e2a\u6ce2\u675f\u5c06\u5929\u7ebf\u5468\u56f4\u7684\u7a7a\u95f4\u5212\u5206\u4e3a\u82e5\u5e72\u90e8\u5206\u3002\u6839\u636e\u7269\u7406\u7684\u7a7a\u95f4\u4f4d\u7f6e\u8fdb\u884c\u901a\u4fe1\u7f16\u7801\u7684\u6280\u672f\u5373\u4e3a\u7a7a\u5206\u7f16\u7801\u6280\u672f\uff0c\u5176\u4e2d\u5fc3\u601d\u60f3\u5373\u4e3a\uff1a\u5bf9\u5355\u4e2a\u6ce2\u675f\u8fdb\u884c\u72ec\u7acb\u8c03\u5236\uff0c\u4f7f\u4e4b\u643a\u5e26\u4e0a\u4e0e\u5176\u4ed6\u6ce2\u675f\u4e0d\u540c\u7684\u4fe1\u606f\u3002\u4f46\u662f\u4e00\u822c\u6570\u5b57\u5e26\u901a\u7cfb\u7edf\u4e2d\u7684\u7f16\u7801\u65b9\u5f0f\u4f1a\u5bf9\u6ce2\u675f\u7684\u5f62\u6210\u4ea7\u751f\u5f71\u54cd\uff0c\u4e25\u91cd\u8005\u4f1a\u8ba9\u8f7d\u6ce2\u7684\u76f8\u5e72\u7279\u6027\u3001\u65b9\u5411\u56fe\u7279\u6027\u5b8c\u5168\u6d88\u5931\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u4e00\u79cd\u5d2d\u65b0\u7684\u7a7a\u5206\u7f16\u7801\u6280\u672f\u6765\u5bf9\u6ce2\u675f\u8fdb\u884c\u8c03\u5236\u3002\u8fd9\u79cd\u6280\u672f\u4e5f\u79f0\u667a\u80fd\u5929\u7ebf\u7684\u6ce2\u675f\u8d4b\u5f62\u6280\u672f\u3002[26~32]<\/sup><\/p>\n

\"4\"<\/p>\n

\u5f0f(1-5)\u4e2d\u7684\u5404\u9879\u53ef\u4ee5\u770b\u4f5c\u4f5c\u7528\u5728\u5404\u5929\u7ebf\u5355\u5143\u4e0a\u7684\u4e00\u4e2a\u6743\u503c\uff0c\u90a3\u4e48\u6574\u4e2a\u6743\u503c\u96c6\u5408\u5373\u53ef\u6784\u6210\u4e00\u4e2a\u6743\u503c\u5411\u91cf\uff0c\u5219\u6743\u5411\u91cf\u662f\u5929\u7ebf\u9635\u4e3b\u74e3\u65b9\u5411\u6307\u5411\u65b9\u4f4d\u89d2[latex]{{\\theta }_{0}}[\/latex]\u7684\u51fd\u6570<\/p>\n

[latex]w={{a}_{l}}\\left( {{\\theta }_{0}} \\right)={{\\left[ 1,{{\\text{e}}^{-j{{\\beta }_{0}}}},\\ldots ,{{\\text{e}}^{-j\\left( N-1 \\right){{\\beta }_{0}}}} \\right]}^{T}}[\/latex]<\/p>\n

\u5f0f\u4e2d<\/p>\n

[latex]{{\\beta }_{0}}=\\frac{2\\pi d}{\\lambda }\\sin {{\\theta }_{0}}[\/latex]<\/p>\n

\u6b64\u65f6\u65b9\u5411\u56fe\u51fd\u6570\u53ef\u91cd\u5199\u4e3a<\/p>\n

[latex]F\\left( \\theta\u00a0 \\right)=\\left| {{w}^{H}}{{a}_{l}}\\left( {{\\theta }_{0}} \\right) \\right|=\\left| \\underset{n=1}{\\overset{N}{\\mathop \\sum }}\\,{{\\text{e}}^{j\\left( n-1 \\right)\\left( \\beta -{{\\beta }_{0}} \\right)}} \\right|=\\left| \\frac{\\sin \\left[ N\\left( \\beta -{{\\beta }_{0}} \\right)\/2 \\right]}{\\sin \\left[ \\left( \\beta -{{\\beta }_{0}} \\right)\/2 \\right]} \\right|[\/latex]<\/p>\n

\u8fc7\u63a7\u5236\u6743\u5411\u91cf\u5b9e\u73b0\u6ce2\u675f\u5b9a\u5411\u7684\u65b9\u6cd5\u4e5f\u79f0\u4e3a\u4f20\u7edf\u8c03\u76f8-\u76f8\u52a0\u6ce2\u675f\u5f62\u6210\u7b97\u6cd5\uff0c\u4f46\u662f\u5bf9\u4e8e\u5176\u5b83\u65b9\u5411\u4e0a\u7684\u5e72\u6270\u4fe1\u53f7\u53ea\u80fd\u8d77\u5230\u4e00\u5b9a\u7684\u524a\u5f31\u4f5c\u7528\uff0c\u524a\u5f31\u7684\u6548\u679c\u5219\u53d6\u51b3\u4e8e\u6ce2\u675f\u56fe\u65c1\u74e3\u7684\u5927\u5c0f\u3002\u4e3a\u4e86\u80fd\u66f4\u597d\u5730\u5b9e\u73b0\u7a7a\u5206\u591a\u5740\u7279\u6027\uff0c\u4eba\u4eec\u5e0c\u671b\u80fd\u5c06\u667a\u80fd\u5929\u7ebf\u6ce2\u675f\u56fe\u4e3b\u74e3\u5bf9\u51c6\u671f\u671b\u4fe1\u53f7\u6765\u6ce2\u65b9\u5411\u7684\u540c\u65f6\uff0c\u5c06\u65b9\u5411\u56fe\u7684\u96f6\u70b9\u5bf9\u51c6\u5e72\u6270\u4fe1\u53f7\u7684\u6765\u6ce2\u65b9\u5411\u3002\u7531\u4e8e\u671f\u671b\u4fe1\u53f7\u548c\u5e72\u6270\u4fe1\u53f7\u7684\u65b9\u5411\u90fd\u662f\u672a\u77e5\u7684\uff0c\u6240\u4ee5\u8fd9\u5c31\u8981\u6c42\u667a\u80fd\u5929\u7ebf\u5177\u6709\u4e00\u5b9a\u7684\u81ea\u9002\u5e94\u80fd\u529b\uff0c\u6839\u636e\u63a5\u6536\u4fe1\u53f7\u4e2d\u6240\u63d0\u4f9b\u7684\u4fe1\u606f\u81ea\u52a8\u5730\u63a7\u5236\u52a0\u6743\u5411\u91cf\u3001\u8c03\u6574\u9635\u5217\u7684\u65b9\u5411\u56fe\uff0c\u4f7f\u5176\u6ee1\u8db3\u4e0a\u8ff0\u7684\u8981\u6c42\u3002\u5f53\u7136\uff0c\u81ea\u9002\u5e94\u667a\u80fd\u5929\u7ebf\u5bf9\u4e8e\u52a0\u6743\u5411\u91cf\u7684\u8c03\u6574\u9700\u8981\u6839\u636e\u4e00\u5b9a\u51c6\u5219\u8fdb\u884c\uff0c\u4e0b\u9762\u4ec5\u4ecb\u7ecd\u5176\u4e2d\u4e4b\u4e00\u2014\u2014\u6700\u5c0f\u5747\u65b9\u7b97\u6cd5\uff08LMS\uff09[25]<\/sup>\uff1a<\/p>\n

LMS \u7b97\u6cd5\u662f\u662f\u667a\u80fd\u5929\u7ebf\u7684\u4e00\u4e2a\u57fa\u672c\u800c\u91cd\u8981\u7684\u65b9\u6cd5\uff0c\u57fa\u4e8e\u8be5\u7b97\u6cd5\u7684\u5404\u79cd\u5f62\u5f0f\u7684\u9635\u5217\u5929\u7ebf\u5df2\u5e7f\u6cdb\u5730\u5e94\u7528\u4e8e\u81ea\u9002\u5e94\u5929\u7ebf\u7cfb\u7edf\u3002\u8be5\u7b97\u6cd5\u53ef\u4f7f\u52a0\u6743\u5411\u91cf\u8d8b\u8fd1\u4e8e\u6700\u5c0f\u5747\u65b9\u8bef\u5dee\u51c6\u5219\uff08MMSE\uff09 \u4e0b\u7684\u6700\u4f18\u89e3\uff0c\u81ea\u9002\u5e94\u5730\u9501\u5b9a\u5e76\u8ddf\u8e2a\u6240\u9700\u4fe1\u53f7\uff0c\u540c\u65f6\u628a\u5929\u7ebf\u65b9\u5411\u56fe\u7684\u96f6\u54cd\u5e94\u70b9\u5bf9\u51c6\u5e72\u6270\u4fe1\u53f7\u3002\u8be5\u7b97\u6cd5\u8981\u6c42\u5728\u672c\u5730\u4ea7\u751f\u4e00\u4e2a\u4e0e\u671f\u671b\u4fe1\u53f7\u6709\u8f83\u5927\u76f8\u5173\u6027\u7684\u53c2\u8003\u4fe1\u53f7[latex]d\\left(n \\right)[\/latex]\uff0c\u4e4b\u540e\u57fa\u4e8e\u6700\u9661\u4e0b\u964d\u7b97\u6cd5(Steepest Descent Method)\uff0c\u901a\u8fc7\u9012\u5f52\u66f4\u65b0\u6743\u5411\u91cf\uff0c\u4ee5\u83b7\u5f97\u4f7f\u8bef\u5dee\u5747\u65b9\u503c\u6700\u5c0f\u7684\u6700\u4f18\u89e3\u3002 \u7528[latex]w\\left( n \\right)[\/latex]\u8868\u793a\u65f6\u523b[latex]n[\/latex]\u7684\u6743\u5411\u91cf\uff0c\u6309\u7167\u6700\u9661\u4e0b\u964d\u7b97\u6cd5\u7684\u601d\u60f3\uff0c\u5728[latex]n+1[\/latex]\u65f6\u523b\u7684\u6743\u5411\u91cf\u53ef\u7528\u4e0b\u9762\u7684\u8fed\u4ee3\u5173\u7cfb\u5f0f\u6c42\u5f97<\/p>\n

[latex]w\\left( n+1 \\right)=w\\left( n \\right)-{\\mu }'{{\\nabla }_{w}}\\xi \\left( n \\right)[\/latex]<\/p>\n

\u5f0f\u4e2d\uff0c[latex]\\xi \\left( n \\right)=E\\left\\{ {{\\left| e\\left( n \\right) \\right|}^{2}} \\right\\}[\/latex]\u4e3a\u5747\u65b9\u5dee\u6027\u80fd\u51fd\u6570\uff0c[latex]{{\\nabla }_{w}}\\xi \\left( n \\right)[\/latex]\u4e3a[latex]\\xi[\/latex]\u7684\u68af\u5ea6\uff0c[latex]\\mu[\/latex]\u4e3a\u6536\u655b\u6b65\u957f\u56e0\u5b50\uff0c\u5b83\u662f\u4e00\u4e2a\u5e38\u6570\uff0c\u7528\u4e8e\u63a7\u5236\u7b97\u6cd5\u6536\u655b\u7684\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n

\u8bef\u5dee\u4fe1\u53f7[latex]e(n)[\/latex]\u4e3a\u671f\u671b\u8f93\u51fa\u4e0e\u5b9e\u9645\u8f93\u51fa\u4e4b\u95f4\u7684\u8bef\u5dee\uff1a<\/p>\n

[latex]e\\left( n \\right)=d\\left( n \\right)-y\\left( n \\right)=d\\left( n \\right)-{{w}^{H}}\\left( n \\right)x\\left( n \\right)[\/latex]<\/p>\n

\u6839\u636e\u4e0a\u5f0f\u6709\uff1a<\/p>\n

[latex]{{\\nabla }_{w}}\\xi \\left( n \\right)=2{{R}_{xx}}w\\left( n \\right)-2{{R}_{xd}}[\/latex]<\/p>\n

\u6240\u4ee5\u53ef\u5f97\u5230\uff1a<\/p>\n

[latex]w\\left( n+1 \\right)=w\\left( n \\right)+\\mu \\left[ {{R}_{xd}}-{{R}_{xx}}w\\left( n \\right) \\right][\/latex]<\/p>\n

\u6700\u9661\u4e0b\u964d\u6cd5\u9700\u8981\u77e5\u9053\u5747\u65b9\u8bef\u5dee\u6027\u80fd\u51fd\u6570\u7684\u68af\u5ea6\u7684\u7cbe\u786e\u503c[latex]{{\\nabla }_{w}}\\xi \\left( n \\right)[\/latex]\uff0c\u8fd9\u8981\u6c42\u8f93\u5165\u4fe1\u53f7\u7684[latex]d(n)[\/latex]\u548c[latex]x(n)[\/latex]\u5e73\u7a33\u4e14\u4e8c\u9636\u7edf\u8ba1\u7279\u6027\u5df2\u77e5\uff0c\u5b9e\u9645\u5e94\u7528\u65f6\u53ef\u91c7\u7528\u77ac\u95f4\u8bef\u5dee\u529f\u7387\u7684\u68af\u5ea6[latex]{{\\hat{\\nabla }}_{w}}\\xi \\left( n \\right)[\/latex]\u4f5c\u4e3a\u5747\u65b9\u8bef\u5dee\u68af\u5ea6\u7684\u4f30\u8ba1\u503c[latex]{{\\nabla }_{w}}\\xi \\left( n \\right)[\/latex]\uff0c\u5373\uff1a<\/p>\n

[latex]{{\\hat{\\nabla }}_{w}}\\xi \\left( n \\right)={{\\nabla }_{w}}{{\\left| e\\left( n \\right) \\right|}^{2}}=-2{{e}^{*}}\\left( n \\right)x\\left( n \\right)[\/latex]<\/p>\n

\u6545 LMS \u7b97\u6cd5\u7684\u9012\u63a8\u516c\u5f0f\u4e3a<\/p>\n

[latex]w\\left( n+1 \\right)=w\\left( n \\right)+2\\mu x\\left( n \\right){{e}^{*}}\\left( n \\right)=~w\\left( n \\right)+\\mu \\left[ {{d}^{*}}\\left( n \\right)-{{x}^{H}}\\left( n \\right)w\\left( n \\right) \\right][\/latex]<\/p>\n

\u6a21\u62df\u4eff\u771f\u8868\u660e\uff0c\u8be5\u7b97\u6cd5\u53ea\u8981\u566a\u58f0\u7684\u529f\u7387\u5728\u4e00\u5b9a\u7684\u8303\u56f4\u4e4b\u5185\uff0c\u5e76\u4e14\u9009\u53d6\u9002\u5f53\u8fed\u4ee3\u6b65\u957f \uff0c\u5219\u4ecd\u53ef\u4ee5\u4fdd\u8bc1\u7b97\u6cd5\u7684\u6709\u6548\u6027\u3002\u7531\u4e8e LMS \u7b97\u6cd5\u8fd0\u7b97\u7b80\u5355\u3001\u6bcf\u6b65\u8fed\u4ee3\u8ba1\u7b97\u91cf\u5c0f\u3001\u5bf9\u5b58\u50a8\u91cf\u8981\u6c42\u4e0d\u9ad8\u7b49\u7279\u70b9\uff0c\u5176\u5728\u76ee\u524d\u7684\u7cfb\u7edf\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u5e94\u7528[25]<\/sup>\u3002<\/p>\n

\u901a\u4fe1\u65b9\u6848\u7684\u8bbe\u8ba1<\/strong><\/p>\n

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    \n
  1. \u901a\u4fe1\u8ddd\u79bb\u8f83\u8fd1<\/li>\n
  2. \u73b0\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u7528\u6237\u548c\u57fa\u7ad9\u7684\u901a\u4fe1\u8ddd\u79bb\u901a\u5e38\u5728\u6570\u767e\u7c73\u81f3\u51e0\u5343\u7c73\u4e0d\u7b49\u3002\u7136\u800c\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u4e2d\uff0c\u9605\u8bfb\u5668\u548c\u5e94\u7b54\u5668\u8ddd\u79bb\u901a\u5e38\u4e0d\u8d85\u8fc7\u51e0\u7c73\uff0c\u5176\u4e2d\u7535\u611f\u8026\u5408\u7684\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u7684\u901a\u4fe1\u8ddd\u79bb\u751a\u81f3\u5728\u6beb\u7c73\u7ea7\uff0c\u6b64\u65f6\u4e24\u79cd\u7cfb\u7edf\u5df2\u6beb\u65e0\u53ef\u6bd4\u6027\uff0c\u6545\u4e0d\u5728\u672c\u6587\u7684\u8ba8\u8bba\u8303\u56f4\u3002\u9488\u5bf9\u7535\u8026\u5408\u7684\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\uff0c\u7531\u4e8e\u548c\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u540c\u6837\u91c7\u7528\u7535\u78c1\u6ce2\u7684\u8fdc\u573a\u8fdb\u884c\u901a\u4fe1\u3002\u6545\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e2d\u6240\u4f7f\u7528\u7684\u8bb8\u591a\u6280\u672f\u65b9\u6848\u90fd\u6709\u79fb\u690d\u8fc7\u6765\u7684\u53ef\u80fd\u6027\u3002\u540c\u65f6\uff0c\u7531\u4e8e\u901a\u4fe1\u8ddd\u79bb\u8f83\u8fd1\uff0c\u591a\u5f84\u6548\u5e94\u4ee5\u53ca\u566a\u58f0\u7b49\u5f71\u54cd\u5e76\u4e0d\u4f1a\u5982\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u90a3\u4e48\u663e\u8457\uff0c\u8fd9\u65e0\u7591\u51cf\u5c11\u4e86\u6211\u4eec\u7684\u7406\u8bba\u8bbe\u8ba1\u538b\u529b\u3002<\/li>\n
  3. \u5e94\u7b54\u5668\u8f83\u7b80\u5355<\/li>\n
  4. \u867d\u7136\u73b0\u5728\u96c6\u6210\u82af\u7247\u7684\u6027\u80fd\u5728\u4e0d\u65ad\u63d0\u9ad8\uff0c\u4f46\u662f\u5f53\u4e0b\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u4e2d\u7684\u5e94\u7b54\u5668\uff0c\u5176\u6027\u80fd\u548c\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7528\u6237\u6240\u6301\u8bbe\u5907\u7684\u6027\u80fd\u8fd8\u662f\u6709\u8d28\u7684\u5dee\u8ddd\u3002\u8fd9\u5c31\u51b3\u5b9a\u4e86\u6211\u4eec\u9700\u8981\u628a\u901a\u4fe1\u8fc7\u7a0b\u4e2d\u7684\u8ba1\u7b97\u4efb\u52a1\u66f4\u591a\u5730\u653e\u5728\u9605\u8bfb\u5668\u4e0a\u8fdb\u884c\uff0c\u800c\u5e94\u7b54\u5668\u6240\u8fdb\u884c\u7684\u8ba1\u7b97\u4efb\u52a1\u5e94\u8be5\u5c3d\u53ef\u80fd\u5730\u7b80\u5355\u3002\u6362\u8a00\u4e4b\u5373\uff1aMIMO\u6a21\u578b\u5bf9\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u5e76\u4e0d\u9002\u7528\u3002<\/li>\n
  5. \u5e26\u5bbd\u8981\u6c42\u5c0f\uff0c\u4f46\u662f\u7b49\u5f85\u65f6\u95f4\u8981\u6c42\u8f83\u9ad8<\/li>\n
  6. \u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u5bf9\u5e26\u5bbd\u548c\u7b49\u5f85\u65f6\u95f4\u90fd\u6709\u8f83\u9ad8\u7684\u8981\u6c42\u3002\u4f46\u662f\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u4e2d\u4ea4\u6362\u7684\u6570\u636e\u901a\u5e38\u90fd\u5728KB\u4ee5\u4e0b\uff0c\u4f46\u662f\u5374\u8981\u6c42\u7cfb\u7edf\u80fd\u9ad8\u901f\u5730\u54cd\u5e94\u3001\u5904\u7406\u8fd9\u4e9b\u6570\u636e\u3002\u56e0\u4e3a\u5982\u679c\u901a\u4fe1\u65f6\u95f4\u592a\u957f\uff0c\u5f88\u591a\u65e0\u6e90\u5e94\u7b54\u5668\u7684\u80fd\u6e90\u4f9b\u7ed9\u5f88\u96be\u4fdd\u8bc1\uff0c\u540c\u65f6\u4e5f\u4f1a\u5927\u5e45\u964d\u4f4e\u7cfb\u7edf\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<\/ol>\n

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    \"5\"<\/p>\n

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    \u7cfb\u7edf\u5728\u5de5\u4f5c\u7684\u4efb\u610f\u65f6\u523b\u90fd\u53ef\u80fd\u906d\u9047\u5f02\u5e38\uff0c\u6bd4\u5982\u5e94\u7b54\u5668\u901a\u4fe1\u4e2d\u4e22\u5931\uff0c\u7a81\u53d1\u4fe1\u53f7\u5e72\u6270\u7b49\u7b49\u3002\u8fd9\u65f6\u7cfb\u7edf\u9700\u8981\u8c03\u7528\u5404\u79cd\u7b56\u7565\u3001\u7b97\u6cd5\u6765\u5904\u7406\u8fd9\u4e9b\u5f02\u5e38\uff0c\u91cd\u65b0\u8c03\u6574\u81ea\u5df1\u7684\u5de5\u4f5c\u72b6\u6001\u3002<\/p>\n

    \u65b9\u6848\u603b\u7ed3\uff1a<\/strong><\/p>\n

    \u672c\u65b9\u6848\u57fa\u4e8e\u667a\u80fd\u5929\u7ebf\u53ca\u7a7a\u65f6\u7f16\u7801\u6280\u672f\uff0c\u5e76\u4e14\u8003\u8651\u4e86\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u7684\u7279\u522b\u6027\u8d28\uff0c\u7efc\u5408\u534f\u8c03\u501f\u7528\u73b0\u4ee3\u79fb\u52a8\u901a\u4fe1\u4e2d\u7684\u79cd\u79cd\u6280\u672f\uff0c\u5c06\u5927\u90e8\u5206\u8ba1\u7b97\u4efb\u52a1\u4ea4\u7ed9\u9605\u8bfb\u5668\u6765\u5b8c\u6210\uff0c\u4fdd\u8bc1\u5e94\u7b54\u5668\u7684\u8f7b\u91cf\u6027\u3002\u540c\u65f6\u80fd\u5728\u591a\u5e94\u7b54\u5668\u73af\u5883\u4e0b\u63d0\u4f9b\u590d\u6570\u6761\u4fe1\u9053\u4f9b\u5404\u4e2a\u5e94\u7b54\u5668\u4f7f\u7528\uff0c\u4ece\u7269\u7406\u7535\u6c14\u7684\u5c42\u9762\u4e0a\u4e00\u5b9a\u7a0b\u5ea6\u89e3\u51b3\u4e86\u5e94\u7b54\u5668\u51b2\u7a81\u7684\u95ee\u9898\uff0c\u589e\u52a0\u4e86\u7cfb\u7edf\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n

    \u53c2\u8003\u6587\u732e\uff1a<\/strong><\/p>\n

      \n
    1. RFID\u7535\u5b50\u6807\u7b7e\u9632\u78b0\u649e\u7b97\u6cd5\u7684\u7814\u7a76_\u5d14\u6c82\u5cf0<\/li>\n
    2. RFID\u7cfb\u7edf\u9632\u78b0\u649e\u534f\u8bae\u7814\u7a76_\u8bbe\u8ba1\u4e0e\u4f18\u5316_\u738b\u5efa\u4f1f<\/li>\n
    3. RFID\u4e2d\u7528\u4e8e\u89e3\u51b3\u4fe1\u9053\u4e89\u7528\u95ee\u9898\u7684\u9632\u78b0\u649e\u7b97\u6cd5_\u5434\u4eac\u84ec<\/li>\n
    4. \u57fa\u4e8eBSS\u7684\u5355\u8def\u4e0e\u591a\u8defRFID\u6df7\u5408\u4fe1\u53f7\u7684\u9632\u78b0\u649e\u6280\u672f_\u9648\u6668<\/li>\n
    5. \u57fa\u4e8e\u4e8c\u53c9\u6811\u7684RFID\u9632\u78b0\u649e\u7b97\u6cd5\u7684\u7814\u7a76_\u738b\u96ea<\/li>\n
    6. \u57fa\u4e8e\u5206\u7ec4\u52a8\u6001\u5e27\u65f6\u9699\u7684RFID\u9632\u78b0\u649e\u7b97\u6cd5_\u5c39\u541b<\/li>\n
    7. \u4e00\u79cd\u591a\u6807\u7b7e\u79fb\u52a8\u73af\u5883\u4e0b\u7684RFID\u9632\u78b0\u649e\u7b97\u6cd5_\u738b\u671d\u8273<\/li>\n
    8. \u4e00\u79cd\u57fa\u4e8e\u7801\u8ddd\u53cd\u6f14\u7684RFID\u9632\u78b0\u649e\u7b97\u6cd5_\u5468\u4fe1<\/li>\n
    9. \u4e00\u79cd\u7528\u4e8e\u591a\u76ee\u6807\u5b9e\u65f6\u8bc6\u522b\u7684\u9632\u78b0\u649e\u7b97\u6cd5_\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u7684\u5173\u952e\u6280\u672f_\u6c88\u5b87\u8d85<\/li>\n
    10. \u81ea\u9002\u5e94\u7ef4\u5206\u7f16\u7801RFID\u9632\u78b0\u649e\u7b97\u6cd5\u7814\u7a76\u53ca\u4f18\u5316_\u674e\u81f4\u91d1<\/li>\n
    11. \u65f6\u9699ALOHA\u6cd5\u5728RFID\u7cfb\u7edf\u9632\u78b0\u649e\u95ee\u9898\u4e2d\u7684\u5e94\u7528_\u80e1\u5efa\u8d5f<\/li>\n
    12. \u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u9632\u78b0\u649e\u6280\u672f\u7684\u7814\u7a76_\u6768\u60e0<\/li>\n
    13. \u300a\u5929\u7ebf\u539f\u7406\u4e0e\u8bbe\u8ba1\u300b\u738b\u5efa<\/li>\n
    14. \u300a\u76f8\u63a7\u9635\u5929\u7ebf\u624b\u518c\uff08\u7b2c\u4e8c\u518c\uff09\u300bRobert J. Mailloux \u8457 \u5357\u4eac\u7535\u5b50\u6280\u672f\u7814\u7a76\u6240 \u8bd1<\/li>\n
    15. \u300a\u9635\u5217\u5929\u7ebf\u5206\u6790\u4e0e\u7efc\u5408\u300b\u859b\u6b63\u8f89 \u674e\u4f1f\u660e \u58ec\u6b66 \u7f16\u8457<\/li>\n
    16. \u300a\u76f8\u63a7\u9635\u96f7\u8fbe\u5929\u7ebf\u300b\u675f\u54b8\u8363 \u4f55\u70b3\u53d1 \u9ad8\u94c1 \u8457<\/li>\n
    17. \u5bbd\u5e26\u76f8\u63a7\u9635\u5929\u7ebf\u5c0f\u578b\u5316\u6280\u672f\u7814\u7a76_\u9f9a\u96ea<\/li>\n
    18. \u76f8\u63a7\u9635\u5929\u7ebf\u6ce2\u675f\u6307\u5411\u7cbe\u5ea6\u7814\u7a76_\u6768\u664b\u4e91<\/li>\n
    19. \u76f8\u63a7\u9635\u5929\u7ebf\u5173\u952e\u6280\u672f\u7684\u7814\u7a76_\u5f20\u4e2d\u4f1f<\/li>\n
    20. \u76f8\u63a7\u9635\u5929\u7ebf\u5173\u952e\u6280\u672f\u53d1\u5c55\u8d8b\u52bf_\u859b\u738b\u4f1f<\/li>\n
    21. \u76f8\u63a7\u9635\u5929\u7ebf\u5feb\u901f\u6d4b\u91cf\u4e0e\u6821\u51c6\u6280\u672f\u7814\u7a76_\u5c1a\u519b\u5e73<\/li>\n
    22. \u57fa\u4e8e\u76f8\u63a7\u9635\u5929\u7ebf\u7684RFID\u7cfb\u7edf\u8bbe\u8ba1_\u80e1\u7119\u5251<\/li>\n
    23. \u57fa\u4e8e\u76f8\u63a7\u9635\u5929\u7ebf\u7684RFID\u7cfb\u7edf\u8bbe\u8ba1_\u5434\u9f99<\/li>\n
    24. \u57fa\u4e8eButler\u77e9\u9635\u7684\u53d1\u5c04\u7cfb\u7edf\u8bbe\u8ba1_\u9648\u6d77\u4e1c<\/li>\n
    25. \u57fa\u4e8e\u667a\u80fd\u5929\u7ebf\u6ce2\u675f\u8d4b\u5f62\u6280\u672f\u7684\u6536\u53d1\u4fe1\u65b9\u6848\u7814\u7a76_\u674e\u51e1<\/li>\n
    26. TD_SCDMA\u4e2d\u4e00\u79cd\u65b0\u7684\u7a7a\u5206\u591a\u5740\u5b9e\u73b0\u7b97\u6cd5_\u80e1\u4e1c\u4f1f<\/li>\n
    27. TD_SCDMA\u5411LTETDD\u6f14\u8fdb\u4e2d\u7684\u591a\u5929\u7ebf\u6280\u672f_\u9f99\u6073<\/li>\n
    28. TD_SCDMA\u667a\u80fd\u5929\u7ebf\u53d1\u4fe1\u6ce2\u675f\u5f62\u6210\u5b9e\u73b0\u65b9\u6848\u7814\u7a76_\u5085\u6d77\u9633<\/li>\n
    29. \u73b0\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf\u4e2d\u667a\u80fd\u5929\u7ebf\u548c\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u7684\u7814\u7a76_\u8463\u6d9b<\/li>\n
    30. MIMO\u7a7a\u5206\u591a\u5740\u7406\u8bba\u5173\u952e\u6280\u672f\u7684\u53ef\u884c\u6027\u5206\u6790_\u738b\u7fa4<\/li>\n
    31. \u9635\u5217\u5929\u7ebf\u591a\u6ce2\u675f\u8d4b\u5f62\u6280\u672f\u7814\u7a76_\u8d3e\u94c2\u5947<\/li>\n
    32. \u591a\u6ce2\u675f\u5929\u7ebf\u6ce2\u675f\u8bbe\u8ba1_\u738b\u5fd7\u534e<\/li>\n
    33. \u661f\u8f7d\u591a\u6ce2\u675f\u53d1\u5c04\u9635\u5217\u5929\u7ebf\u591a\u901a\u9053\u6570\u5b57\u4e0a\u53d8\u9891\u8bbe\u8ba1_\u6881\u5e7f<\/li>\n
    34. \u661f\u8f7d\u591a\u6ce2\u675f\u5929\u7ebf\u8bbe\u8ba1_\u6bb5\u7389\u864e<\/li>\n
    35. \u536b\u661f\u591a\u6ce2\u675f\u5929\u7ebf\u7efc\u8ff0_\u8c22\u5d07\u8fdb<\/li>\n<\/ol>\n

      \u539f\u6587\u4e0b\u8f7d\uff1aRFID design<\/a><\/p>\n

      \u6ce8\uff1a\u672c\u6587\u4e3a\u4e2a\u4eba\u5927\u5b66\u65f6\u671fRFID\u7ed3\u8bfe\u8bbe\u8ba1\u4f5c\u54c1<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u57fa\u4e8e\u667a\u80fd\u5929\u7ebf\u53ca\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u7684\u5c04\u9891\u8bc6\u522b\u7cfb\u7edf\u5728\u591a\u5e94\u7b54\u5668\u73af\u5883\u4e0b\u7684\u901a\u4fe1\u65b9\u6848 \u5173\u952e\u8bcd\uff1a\u667a\u80fd\u5929\u7ebf \u7a7a\u65f6\u7f16\u7801\uff08SD-CDMA […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/posts\/215"}],"collection":[{"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/comments?post=215"}],"version-history":[{"count":0,"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/posts\/215\/revisions"}],"wp:attachment":[{"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/media?parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/categories?post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xxxsola.org\/cms\/wp-json\/wp\/v2\/tags?post=215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}