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TDL\uff08Tapped Delay Line\uff09\u62bd\u5934\u5ef6\u65f6\u7ebf\u6a21\u578b<\/h2>\n
TDL\u6a21\u578b\u4e3b\u8981\u9488\u5bf9\u591a\u5f84\u65f6\u5ef6\u53c2\u6570\u548c\u53cd\u6620\u4fe1\u9053\u65f6\u53d8\u7279\u6027\u7684\u591a\u666e\u52d2\u53c2\u6570\u8fdb\u884c\u7814\u7a76\uff0c\u4e3b\u8981\u6709TDL-A\u3001TDL-B\u3001TDL-B\u3001TDL-D\u3001TDL-E\u4e94\u79cd\u3002\u5176\u4e2d\u524d\u4e09\u8005\u4e3aNLOS\u4f20\u8f93\u7684\u591a\u5f84\u4fe1\u9053\u6a21\u62df\uff0c\u540e\u4e24\u8005\u4e3aLOS\u4f20\u8f93\u7684\u591a\u5f84\u4fe1\u9053\u6a21\u62df\u3002<\/p>\n
\u9002\u7528\u9891\u5e26\u8303\u56f4\uff1a0.5GHz \u5230 100GHz \u9891\u7387\u8303\u56f4\u5185\u6700\u5927\u5e26\u5bbd 2GHz \u7684\u5730\u9762\u591a\u5f84\u4fe1\u9053<\/p>\n
\u53ef\u4ee5\u53c2\u8003\u5982\u56fe\u6240\u793a\u7684TDL\u6a21\u578b\u793a\u610f\u56fe\uff0c\u5047\u8bbe\u63a5\u6536\u4fe1\u53f7\u662f\u7531\u4e0d\u540c\u65f6\u5ef6\u7684\u591a\u5f84\u5c04\u7ebf\u53e0\u52a0\uff0c\u4e0b\u56fe\u91cc\u7684\u4e00\u4e2a\u62bd\u5934\u5c31\u4ee3\u8868\u4e0a\u56fe\u91cc\u4e00\u6761\u591a\u5f84\u5c04\u7ebf\uff0c\u62bd\u5934\u7cfb\u6570\u8868\u793a\u5c04\u7ebf\u7684\u589e\u76ca\u3001\u65f6\u5ef6\u7b49\u53c2\u6570\u3002
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TDL\u6a21\u578b\u53ef\u4ee5\u7531FIR\u6ee4\u6ce2\u5668\u5b9e\u73b0\u3002<\/p>\n
TDL\u662f\u7b80\u5316\u6a21\u578b\uff0c\u672c\u8eab\u662f\u4e3aSISO\u8bbe\u8ba1\u7684\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u6269\u5c55\uff0c\u6bd4\u5982\u91cd\u590d\u591a\u6b21\u52a0\u4e0a\u5f15\u5165\u7a7a\u95f4\u76f8\u5173\u6027\u6765\u5bf9MIMO\u4fe1\u9053\u5efa\u6a21\u3002<\/p>\n
CDL\uff08clustered Delay Line\uff09\u7c07\u5ef6\u65f6\u7ebf\u6a21\u578b<\/h2>\n
\u4e3b\u8981\u6709CDL-A\u3001CDL-B\u3001CDL-B\u3001CDL-D\u3001CDL-E\u4e94\u79cd\uff0c\u5176\u4e2d\u524d\u4e09\u8005\u4e3aNLOS\u4f20\u8f93\u7684\u591a\u5f84\u4fe1\u9053\u6a21\u62df\uff0c\u540e\u4e24\u8005\u4e3aLOS\u4f20\u8f93\u7684\u591a\u5f84\u4fe1\u9053\u6a21\u62df\u3002<\/p>\n
CDL\u6a21\u578b\u548cTDL\u6a21\u578b\u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\uff1a<\/p>\n
1.CDL\u6a21\u578b\u4e2d\u5f15\u5165\u4e86\u7c07\u7684\u6982\u5ff5\uff0c\u5176\u4e2d\uff0c\u7c07\u5c31\u662f\u5177\u6709\u76f8\u4f3c\u5230\u8fbe\u89d2\u3001\u79bb\u5f00\u89d2\u548c\u65f6\u5ef6\u7684\u591a\u5f84\u96c6\u5408\u3002\u7c07\u7684\u6982\u5ff5\u53ef\u4ee5\u53c2\u8003\u4e0b\u56fe\u3002<\/p>\n
2.\u9664\u4e86\u65f6\u5ef6delay\u548c\u529f\u7387power\u4e24\u4e2a\u53c2\u6570\u4ee5\u5916\uff0cCDL\u6a21\u578b\u589e\u52a0\u4e86\u79bb\u5f00\u65b9\u4f4d\u89d2AOD\u3001\u5230\u8fbe\u65b9\u4f4d\u89d2AOA\u3001\u79bb\u5f00\u5929\u9876\u89d2ZOD\u3001\u5230\u8fbe\u5929\u9876\u89d2ZOA\uff0c\u7528\u6765\u8868\u5f81\u4fe1\u9053\u6a21\u578b\u7684\u7a7a\u95f4\u7279\u6027\u3002\u8fd9\u4e5f\u662fCDL\u7684\u7279\u70b9\u4e4b\u4e00\uff0c\u5b83\u662f\u4e3a3D\u901a\u9053\u8bbe\u8ba1\u7684\uff0c\u80fd\u66f4\u597d\u5730\u8868\u5f81\u7a7a\u95f4\u76f8\u5173\u6027\u3002<\/p>\n
3.CDL\u7c07\u7684\u6570\u91cf\u6700\u591a\u670924\u4e2a\uff0c\u53ef\u4ee5\u8868\u5f81\u66f4\u591a\u7684\u6ce2\u675f\u3002
CDL\u6a21\u578b\u53ef\u4ee5\u5bf9\u5929\u7ebf\u9635\u5217\u5efa\u6a21\uff0c\u5177\u6709\u7a7a\u95f4\u76f8\u5173\u6027\uff0c\u800c\u4e14\u5f15\u5165\u4e86\u79bb\u53bb\u89d2\u548c\u5230\u8fbe\u89d2\uff0c\u80fd\u66f4\u597d\u5f97\u8868\u5f81\u7a7a\u95f4\u7279\u6027\u3002<\/p>\n
TDL\u4fe1\u9053\u7cfb\u6570\uff1a
\uff08\u5f88\u591a\u3002\u3002\u3002\uff09<\/p>\n
\uff08TDL\u53ef\u80fd\u66f4\u9002\u5408\u7aef\u5230\u7aef\u7684\u5efa\u6a21\uff0cCDL\u66f4\u9002\u5408\u5f84\u66f4\u591a\u3001\u9700\u8981\u8003\u8651\u7a7a\u95f4\u7279\u6027\u7684\u573a\u666f\uff0c\u731c\u6d4b\u3002\u3002\u3002\uff09<\/p>\n
\u53c2\u6570\u8c03\u6574<\/h2>\n
TDL\u3001CDL\u90fd\u662f\u53ef\u4ee5\u5bf9\u53c2\u6570\u8fdb\u884c\u8c03\u6574\uff0c\u9002\u7528\u4e8e\u5b9e\u9645\u4eff\u771f\u9700\u6c42\u3002<\/p>\n
1.\u5747\u65b9\u6839\u65f6\u5ef6\u6269\u5c55\u8c03\u6574<\/strong>
TDL\u548cCDL\u652f\u6301\u6839\u636e\u5b9e\u9645\u4eff\u771f\u9700\u8981\u8c03\u6574\u5747\u65b9\u6839\u65f6\u5ef6\u6269\u5c55\uff1a
2.K\u56e0\u5b50\u8c03\u6574<\/strong>
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\u5176\u4e2dPn,scaled\u548cPn,model\u662f\u7c07\/\u62bd\u5934\u8c03\u6574\u540e\u548c\u8c03\u6574\u524d\u7684\u529f\u7387\uff0c\u6a21\u578b\u7684K\u56e0\u5b50Kmodel\u4e3a\uff1a
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