{"id":425,"date":"2022-04-19T15:55:04","date_gmt":"2022-04-19T07:55:04","guid":{"rendered":"\/\/www.100wfx.com\/?p=425"},"modified":"2022-04-19T15:55:04","modified_gmt":"2022-04-19T07:55:04","slug":"uwb%e5%ae%9a%e4%bd%8d%e5%8e%9f%e7%90%86%e5%9b%be%e6%96%87%e8%a7%a3%e9%87%8a%ef%bc%8c%e5%91%8a%e8%af%89%e4%bd%a0uwb%e8%b6%85%e5%ae%bd%e5%b8%a6%e6%98%af%e5%a6%82%e4%bd%95%e5%81%9a%e5%88%b0%e5%ae%a4","status":"publish","type":"post","link":"\/\/www.100wfx.com\/uwbtech\/425.html","title":{"rendered":"UWB\u5b9a\u4f4d\u539f\u7406\u56fe\u6587\u89e3\u91ca\uff0c\u544a\u8bc9\u4f60UWB\u8d85\u5bbd\u5e26\u662f\u5982\u4f55\u505a\u5230\u5ba4\u5185\u5b9a\u4f4d"},"content":{"rendered":"
\u5148\u89e3\u91ca\u4e0bUWB\u662fUltra Wide Band\u7684\u7b80\u5199\uff0c\u662f\u4e00\u79cd\u65e0\u8f7d\u6ce2\u901a\u4fe1\u6280\u672f\uff0cUWB\u4e0d\u4f7f\u7528\u8f7d\u6ce2\uff0c\u800c\u662f\u4f7f\u7528\u77ed\u7684\u80fd\u91cf\u8109\u51b2\u5e8f\u5217\uff0c\u5e76\u901a\u8fc7\u6b63\u4ea4\u9891\u5206\u8c03\u5236\u6216\u76f4\u63a5\u6392\u5e8f\u5c06\u8109\u51b2\u6269\u5c55\u5230\u4e00\u4e2a\u9891\u7387\u8303\u56f4\u5185\u3002\u7f8e\u56fd\u8054\u90a6\u901a\u4fe1\u59d4\u5458\u4f1a\uff08FCC\uff09\u89c4\u5b9a\uff0cUWB\u4fe1\u53f7\u7684\u76f8\u5bf9\u5e26\u5bbd\uff08 \u5373\u4fe1\u53f7\u5e26\u5bbd\u4e0e\u4e2d\u5fc3\u9891\u7387\u4e4b\u6bd4\uff09\u4e0d\u5c0f\u4e8e0.2 \u6216\u8005\u7edd\u5bf9\u5e26\u5bbd\u4e0d\u5c0f\u4e8e500 \uff2d\uff28z\uff0c \u5e76\u4e14\u9002\u7528\u6307\u5b9a\u7684 3.1~10.6 GHz\u9891\u6bb5\u7684\u4fe1\u53f7\u3002<\/p>\n
<\/p>\n
\u4f20\u7edf\u901a\u4fe1\u65b9\u5f0f\u4f7f\u7528\u7684\u662f\u8fde\u7eed\u6ce2\u4fe1\u53f7\uff0c\u5373\u672c\u5730\u632f\u8361\u5668\u4ea7\u751f\u8fde\u7eed\u7684\u9ad8\u9891\u8f7d\u6ce2\uff0c\u9700\u8981\u4f20\u9001\u4fe1\u606f\u901a\u8fc7\u4f8b\u5982\u8c03\u5e45\uff0c\u8c03\u9891\u7b49\u65b9\u5f0f\u52a0\u8f7d\u4e8e\u8f7d\u6ce2\u4e4b\u4e0a\uff0c\u901a\u8fc7\u5929\u7ebf\u8fdb\u884c\u53d1\u9001\u3002\u73b0\u5728\u7684\u65e0\u7ebf\u5e7f\u64ad\uff0c4G\u901a\u4fe1\uff0cWIFI\u7b49\u90fd\u662f\u91c7\u7528\u8be5\u65b9\u5f0f\u8fdb\u884c\u65e0\u7ebf\u901a\u4fe1\u3002<\/p>\n
\u4e0b\u56fe\u662f\u4e00\u4e2a\u4f7f\u7528\u8c03\u5e45\u65b9\u5f0f\u4f20\u9012\u8bed\u97f3\u4fe1\u53f7\u7684\u7684\u8fde\u7eed\u6ce2\u4fe1\u53f7\u4ea7\u751f\u793a\u610f\u56fe<\/p>\n
<\/p>\n
\u800cIR-UWB\u4fe1\u53f7\uff0c\u4e0d\u9700\u8981\u4ea7\u751f\u8fde\u7eed\u7684\u9ad8\u9891\u8f7d\u6ce2\uff0c\u4ec5\u4ec5\u9700\u8981\u4ea7\u751f\u4e00\u4e2a\u65f6\u95f4\u77ed\u81f3nS\u7ea7\u4ee5\u4e0b\u7684\u8109\u51b2\uff0c\u4fbf\u53ef\u901a\u8fc7\u5929\u7ebf\u8fdb\u884c\u53d1\u9001\u3002\u9700\u8981\u4f20\u9001\u4fe1\u606f\u53ef\u4ee5\u901a\u8fc7\u6539\u53d8\u8109\u51b2\u7684\u5e45\u5ea6\uff0c\u65f6\u95f4\uff0c\u76f8\u4f4d\u8fdb\u884c\u52a0\u8f7d\uff0c\u8fdb\u800c\u5b9e\u73b0\u4fe1\u606f\u4f20\u8f93\u3002<\/p>\n
\u4e0b\u56fe\u662f\u4f7f\u7528\u76f8\u4f4d\u8c03\u5236\u65b9\u5f0f\u4f20\u8f93\u4e8c\u8fdb\u5236\u5f52\u96f6\u7801\u7684IR-UWB\u4fe1\u53f7\u4ea7\u751f\u793a\u610f\u56fe<\/p>\n
<\/p>\n
UWB\u7684\u5b9a\u4f4d\u7b97\u6cd5\u5206\u4e3aTOF(Time of Flight),TOA(Time of Arrival)\u4ee5\u53caTDOA(Time difference of Arrival)\uff0c\u5bf9\u4e8eUWB\u5b9a\u4f4d\uff0cTOF\u548cTDOA\u662f\u6700\u5e38\u7528\u7684\u5b9a\u4f4d\u7b97\u6cd5\u3002<\/p>\n
TOF(Time Of Flight)\u98de\u884c\u65f6\u95f4\u7b97\u6cd5\u4e3b\u8981\u5229\u7528\u4fe1\u53f7\u5728\u4e24\u4e2aUWB\u4fe1\u53f7\u5f02\u6b65\u6536\u53d1\u673a\uff08Transceiver\uff09\u4e4b\u95f4\u98de\u884c\u65f6\u95f4\u6765\u6d4b\u91cf\u8282\u70b9\u95f4\u7684\u8ddd\u79bb\u3002\u5728UWB\u4fe1\u53f7\u53d1\u5c04\u7aef\u53d1\u5c04\u51faUWB\u4fe1\u53f7\u65f6\u5e26\u6709\u72ec\u7acb\u7684\u65f6\u95f4\u6233\u6807\u8bb0\uff0c\u5728UWB\u63a5\u6536\u7aef\u63a5\u6536\u5230UWB\u4fe1\u53f7\u5e76\u5904\u7406\u540e\u518d\u6b21\u53d1\u51fa\u65f6\u52a0\u4e0a\u63a5\u6536\u5230\u53d1\u5c04\u7aef\u53d1\u51fa\u7684\u65f6\u95f4\u6233\u4ee5\u53ca\u5904\u7406\u7684\u65f6\u95f4\u95f4\u9694Tr\u3002UWB\u4fe1\u53f7\u53d1\u5c04\u7aef\u518d\u6b21\u63a5\u6536\u65f6\u901a\u8fc7\u89e3\u6790\u51fa\u7b2c\u4e00\u6b21\u53d1\u5c04\u65f6\u7684\u65f6\u95f4\u6233\u5373\u53ef\u6c42\u51fa\u4fe1\u53f7\u4e00\u6765\u4e00\u56de\u8017\u65f6Tt\u3002\u8fd9\u6837\u4fe1\u53f7\u5355\u5411\u98de\u884c\u65f6\u95f4\u53ef\u8ba1\u7b97\u51fa\u4e3aTf = (Tt-Tr)\/2\uff0c\u7531\u4e8e\u7535\u78c1\u6ce2\u7684\u4f20\u64ad\u901f\u5ea6\u4e3a\u5149\u901fC\uff0c\u5373\u53ef\u8ba1\u7b97\u51fa\u4e24\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bbd = Tf * C\u3002<\/p>\n
<\/p>\n
ToF\u98de\u884c\u65f6\u95f4\u7b97\u6cd5<\/span><\/p>\n \u98de\u884c\u65f6\u95f4\u7b97\u6cd5(ToF\uff09\u5728UWB\u5b9a\u4f4d\u4e2d\u7528\u4e8e\u6d4b\u8ddd\u3002\u4e5f\u5e94\u7528\u5728\u72ed\u957f\u7684\u8d70\u5eca\u548c\u96a7\u9053\u73af\u5883\u4e2d\uff0c\u7528\u4e8e\u8ba1\u7b97\u51fa\u5b9a\u4f4d\u6807\u7b7e\u79bb\u4e24\u4e2a\u57fa\u7ad9\u4e4b\u95f4\u7684\u8ddd\u79bb\uff0c\u8fdb\u800c\u8ba1\u7b97\u51fa\u5b9a\u4f4d\u6807\u7b7e\u6240\u5728\u4e00\u7ef4\u5750\u6807\u3002<\/p>\n \u5728ToF\u6d4b\u8ddd\u7b97\u6cd5\u57fa\u7840\u4e0a\uff0c\u7cbe\u51c6\u8ba1\u7b97\u51fa\u5b9a\u4f4d\u6807\u7b7e\u5728\u5ba4\u5185\u7684\u4f4d\u7f6e\u5c31\u6709\u4e86\u53ef\u80fd\uff0c\u8fd9\u5c31\u662fTDOA\u7b97\u6cd5\u7684\u7531\u6765\uff0cTDOA(Time difference of Arriaval)\u5230\u8fbe\u65f6\u95f4\u5dee\u7b97\u6cd5\uff0c\u662f\u5728ToF\u7b97\u6cd5\u57fa\u7840\u4e0a\u5229\u7528\u591a\u4e2a\u57fa\u7ad9\u8ba1\u7b97\u51fa\u5b9a\u4f4d\u6807\u7b7e\u6240\u6709\u7684\u8ddd\u79bb\uff0c\u5b9a\u4f4d\u7cbe\u5ea6\u6700\u9ad8\u53ef\u8fbe30cm\u3002<\/p>\n UWB\u5b9a\u4f4d\u57fa\u7ad9\u4e09\u4e2a\u4e00\u7ec4\uff0c\u4e00\u4e2a\u4e3b\u57fa\u7ad9\u6302\u8f7d\u4e24\u4e2a\u5206\u57fa\u7ad9\uff0c\u5206\u57fa\u7ad9\u5411\u4e3b\u57fa\u7ad9\u540c\u6b65\u65f6\u95f4\uff0c\u8fd9\u6837\u53ef\u505a\u5230\u4e09\u4e2a\u57fa\u7ad9\u7684\u65f6\u949f\u540c\u6b65\uff0c\u5728\u623f\u95f4\u5185\uff0c\u4e09\u4e2a\u4e3b\u57fa\u7ad9\u7684\u5750\u6807\u5206\u522b\u662fbs1(x1,y1), bs2(x2,y2\uff09\u548cbs3(x3,y3)\uff0c\u793a\u4f8b\u56fe\u5982\u4e0b\uff1a<\/p>\n \u901a\u8fc7TOF\u7b97\u6cd5\uff0c\u53ef\u8f7b\u677e\u8ba1\u7b97\u51faE\u70b9\u79bb\u6bcf\u4e2a\u57fa\u7ad9\u7684\u8ddd\u79bbR1,R2\u548cR3<\/p>\n <\/p>\n \u5b9a\u4f4d\u6807\u7b7e(x0,y0)\u4e0e\u4e09\u4e2a\u57fa\u7ad9\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u6ee1\u8db3\u4ee5\u4e0b\u516c\u5f0f\uff1a<\/p>\n <\/p>\n TDOA\u7b97\u6cd5\u8ba1\u7b97\u8ddd\u79bb\u516c\u5f0f<\/span><\/p>\n \u628a\u57fa\u7ad9\u7684\u5750\u6807\u4ee3\u5165\u516c\u5f0f\u5373\u53ef\u8ba1\u7b97\u51fa\u5b9a\u4f4d\u6807\u7b7e(x0,y0)\u6240\u5728\u7684\u4f4d\u7f6e\u3002TDOA\u7b97\u6cd5\u7cbe\u51c6\u5ea6\u8f83\u9ad8\uff0c\u6700\u9ad8\u53ef\u8fbe\u523030cm\u7684\u5b9a\u4f4d\u7cbe\u5ea6\u3002\u5f53\u7136\u5728\u771f\u5b9e\u7684\u73af\u5883\u4e2d\uff0c\u7531\u4e8e\u91d1\u5c5e\u3001\u73bb\u7483\u7684\u5e72\u6270\u5bf9\u8d85\u5bbd\u5e26\u4fe1\u53f7\u540c\u6837\u6709\u5f71\u54cd\uff0c\u5728\u901a\u8fc7TDOA\u7b97\u6cd5\u5f97\u51fa\u771f\u5b9e\u7684\u8ddd\u79bb\u540e\u8fd8\u9700\u8981\u5229\u7528\u6ee4\u6ce2\u4fe1\u53f7\u8fc7\u6ee4\u4fe1\u53f7\u6742\u97f3\uff0c\u4ee5\u786e\u4fdd\u5b9a\u4f4d\u70b9\u7684\u7a33\u5b9a\u3002<\/p>\n <\/p>\n \u4ee5\u4e0a\u5c31\u662fUWB\u5ba4\u5185\u5b9a\u4f4d\u6280\u672f\u7684\u539f\u7406\u89e3\u91ca\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u5148\u89e3\u91ca\u4e0bUWB\u662fUltra Wide Band\u7684\u7b80\u5199\uff0c\u662f\u4e00\u79cd… <\/p>\n","protected":false},"author":1,"featured_media":426,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,2],"tags":[76],"class_list":["post-425","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-indoor","category-uwbtech","tag-uwb"],"yoast_head":"\n