{"id":10528,"date":"2021-08-09T17:45:18","date_gmt":"2021-08-10T00:45:18","guid":{"rendered":"https:\/\/www.litepoint.com\/?post_type=blog&p=10528"},"modified":"2021-08-09T17:54:49","modified_gmt":"2021-08-10T00:54:49","slug":"%e8%93%9d%e7%89%99-5-1-%e4%b8%ba%e4%bb%80%e4%b9%88%e6%88%91%e4%bb%ac%e9%9c%80%e8%a6%81%e5%87%86%e7%a1%ae%e7%9a%84%e5%ae%9a%e4%bd%8d%e5%92%8c%e5%ae%9a%e5%90%91%ef%bc%9f","status":"publish","type":"blog","link":"https:\/\/www.litepoint.com\/zh-hans\/blog\/%e8%93%9d%e7%89%99-5-1-%e4%b8%ba%e4%bb%80%e4%b9%88%e6%88%91%e4%bb%ac%e9%9c%80%e8%a6%81%e5%87%86%e7%a1%ae%e7%9a%84%e5%ae%9a%e4%bd%8d%e5%92%8c%e5%ae%9a%e5%90%91%ef%bc%9f\/","title":{"rendered":"\u84dd\u7259 5.1 – \u4e3a\u4ec0\u4e48\u6211\u4eec\u9700\u8981\u51c6\u786e\u7684\u5b9a\u4f4d\u548c\u5b9a\u5411\uff1f"},"content":{"rendered":"\n

\u672c\u535a\u5ba2\u7684\u4f5c\u8005\u662f LitePoint \u7684 Eve Danel\u3002\u5728\u672c\u6587\u4e2d\uff0c\u60a8\u5c06\u4e86\u89e3\u6700\u65b0\u7684\u84dd\u7259\u89c4\u8303\u548c\u84dd\u7259 5.1 \u7684\u5168\u65b0\u6d4b\u8bd5\u8981\u6c42\u3002<\/em><\/p>\n\n\n\n

\u84dd\u7259 5.1 – \u4e3a\u4ec0\u4e48\u6211\u4eec\u9700\u8981\u51c6\u786e\u7684\u5b9a\u4f4d\u548c\u5b9a\u5411\uff1f<\/h2>\n\n\n\n

2010 \u5e74\uff0c\u84dd\u7259\u4f4e\u529f\u8017\uff08Bluetooth\u00ae<\/sup> LE\uff09\u6280\u672f\u968f\u84dd\u7259 4.0 \u6807\u51c6\u4e00\u540c\u63a8\u51fa\u3002\u4e0e\u5341\u5206\u7ecf\u5178\u7684\u524d\u51e0\u4ee3\u84dd\u7259\u76f8\u6bd4\uff0cBluetooth\u00ae<\/sup> LE \u652f\u6301\u4ee5\u66f4\u4f4e\u7684\u529f\u8017\u8fd0\u884c\uff0c\u4ece\u800c\u5ef6\u957f\u4e86\u4e3b\u673a\u8bbe\u5907\u7684\u7535\u6c60\u5bff\u547d\u30022016 \u5e74\uff0c\u84dd\u7259 5 \u6807\u51c6\u63a8\u51fa\uff0c\u4e0d\u4f46\u5c06\u6570\u636e\u901f\u7387\u7ffb\u500d\uff0c\u8fd8\u6269\u5927\u4e86\u5de5\u4f5c\u8303\u56f4\u30022019 \u5e74\uff0c\u84dd\u7259 5.1 \u53d1\u5e03\uff0c\u589e\u52a0\u4e86\u652f\u6301\u4f4d\u7f6e\u8ddf\u8e2a\u5e94\u7528\u7684\u5b9a\u5411\u589e\u5f3a\u529f\u80fd\u3002<\/p>\n\n\n\n

\u84dd\u7259 5.1 \u7528\u4f8b<\/strong><\/p>\n\n\n\n

\u501f\u52a9\u84dd\u7259 5.1 \u4e2d\u7684\u5b9a\u5411\u589e\u5f3a\u529f\u80fd\uff0c\u8fd9\u9879\u6280\u672f\u53ef\u4ee5\u5728\u5ba4\u5185\u5de5\u4f5c\u65f6\u63d0\u4f9b\u7c7b\u4f3c GPS \u7684\u5b9a\u4f4d\u529f\u80fd\u3002\u6b64\u7c7b\u6280\u672f\u7684\u5e94\u7528\u8303\u56f4\u5341\u5206\u5e7f\u6cdb\uff0c\u5305\u62ec\u8d44\u4ea7\u8ddf\u8e2a\u3001\u5b9a\u4f4d\u5efa\u7b51\u7269\u4e2d\u7684\u4eba\u5458\u3001\u5ba4\u5185\u5b9a\u5411\u548c\u7269\u4f53\u8ddf\u8e2a\u7b49\u3002\u8fd9\u79cd\u4e30\u5bcc\u7684\u7528\u4f8b\u53ef\u5e94\u7528\u4e8e\u51e0\u4e4e\u6240\u6709\u5782\u76f4\u9886\u57df\u5e02\u573a\uff0c\u5305\u62ec\u5de5\u4e1a\u3001\u533b\u7597\u3001\u96f6\u552e\u3001\u9152\u5e97\u3001\u4f01\u4e1a\u3001\u5bb6\u5ead\u548c\u4ea4\u901a\u3002<\/p>\n\n\n\n

\u57fa\u4e8e RSSI \u7684\u63a5\u8fd1\u611f\u5e94<\/strong><\/p>\n\n\n\n

\u5728\u4f7f\u7528\u84dd\u7259\u4fe1\u6807\u5b9e\u73b0\u63a5\u8fd1\u611f\u5e94\u65b9\u9762\uff0c\u84dd\u7259\u5df2\u7ecf\u662f\u4e00\u79cd\u5e38\u89c1\u6280\u672f\u3002\u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u5b9a\u4f4d\u5668\u4f7f\u7528\u63a5\u6536\u5230\u4fe1\u53f7\u5f3a\u5ea6\u6307\u6807 (RSSI) \u503c\u6765\u4f30\u7b97\u8ddd\u79bb\uff0c\u8be5\u503c\u8868\u793a\u5728\u5b9a\u4f4d\u5668\u63a5\u6536\u5668\u4e0a\u6d4b\u5f97\u7684\u4fe1\u53f7\u5f3a\u5ea6\u3002RSSI \u7528\u4e8e\u4f30\u7b97\u53d1\u5c04\u5668\u548c\u63a5\u6536\u5668\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002\u77e5\u9053\u53d1\u5c04\u5668\u7684\u529f\u7387\u540e\uff0c\u5c31\u53ef\u4ee5\u901a\u8fc7\u6d4b\u91cf\u4fe1\u53f7\u8870\u51cf\u6765\u4f30\u7b97\u7269\u54c1\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n

\"\"
\u56fe 1\uff1a\u57fa\u4e8e RSSI \u7684\u65b9\u6cd5<\/figcaption><\/figure>\n\n\n\n

RSSI \u53ea\u80fd\u7c97\u7565\u5730\u4f30\u7b97\u8ddd\u79bb\uff0c\u56e0\u4e3a\u6b64\u65b9\u6cd5\u5bb9\u6613\u53d7\u5230\u73af\u5883\u7684\u5f71\u54cd\u3002\u53d1\u5c04\u5668\u548c\u63a5\u6536\u5668\u4e4b\u95f4\u7684\u969c\u788d\u7269\uff08\u4f8b\u5982\u4e00\u7fa4\u4eba\uff09\u4f1a\u663e\u8457\u589e\u52a0\u4fe1\u53f7\u8870\u51cf\uff0c\u4ece\u800c\u964d\u4f4e\u8ddd\u79bb\u4f30\u7b97\u7684\u7cbe\u5ea6\u3002\u6b64\u5916\uff0cRSSI \u65b9\u6cd5\u53ea\u80fd\u68c0\u6d4b\u5230\u8bbe\u5907\u4f4d\u4e8e\u63a5\u6536\u5668\u5468\u56f4\u5706\u5f62\u533a\u57df\u7684\u67d0\u5904\uff08\u5982\u4e0a\u9762\u7684\u56fe 1 \u6240\u793a\uff09\uff0c\u56e0\u4e3a\u5b83\u4e0d\u63d0\u4f9b\u6709\u5173\u4f4d\u7f6e\u7684\u4efb\u4f55\u9644\u52a0\u4fe1\u606f\u3002\u901a\u8fc7\u90e8\u7f72\u591a\u4e2a\u5b9a\u4f4d\u5668\u5e76\u4f7f\u7528\u4fe1\u53f7\u4e09\u8fb9\u6d4b\u91cf\uff0c\u53ef\u4ee5\u66f4\u51c6\u786e\u5730\u5b9a\u4f4d\u8bbe\u5907\uff0c\u4f46\u4e5f\u4f1a\u589e\u52a0\u7cfb\u7edf\u7684\u590d\u6742\u6027\u3002<\/p>\n\n\n\n

\u901a\u8fc7AoA\u548cAoD\u63d0\u9ad8\u7cbe\u5ea6<\/strong><\/p>\n\n\n\n

\u84dd\u7259 5.1 \u901a\u8fc7\u63d0\u4f9b\u5230\u8fbe\u89d2 (AoA) \u548c\u79bb\u5f00\u89d2 (AoD) \u4fe1\u606f\u6765\u63d0\u9ad8 RSSI \u65b9\u6cd5\u7684\u7cbe\u5ea6\u3002<\/p>\n\n\n\n

AoA \u8bbe\u8ba1\u7528\u4e8e\u8d44\u4ea7\u8ddf\u8e2a\u7b49\u5e94\u7528\uff0c\u5176\u4e2d\u79fb\u52a8\u7684 AoA \u53d1\u5c04\u5668\uff08\u4f8b\u5982\u624b\u673a\uff09\u4f7f\u7528\u5355\u4e2a\u5929\u7ebf\u53d1\u9001\u84dd\u7259 LE \u5b9a\u5411\u4fe1\u53f7\uff0c\u800c\u56fa\u5b9a\u7684 AoA \u63a5\u6536\u5668\uff08\u4f8b\u5982\u5b89\u88c5\u5728\u5929\u82b1\u677f\u4e0a\uff09\u914d\u5907\u81f3\u5c11\u6709\u4e24\u4e2a\u5929\u7ebf\u7684\u5929\u7ebf\u9635\u5217\u3002\u8be5\u5929\u7ebf\u9635\u5217\u7528\u4e8e\u901a\u8fc7\u4f7f\u7528\u5929\u7ebf\u4e4b\u95f4\u7684\u76f8\u4f4d\u5dee\u6765\u786e\u5b9a\u53d1\u5c04\u5668\u7684\u65b9\u5411\u3002\u53ef\u6839\u636e\u4fe1\u53f7\u7684\u6ce2\u957f\u3001\u5929\u7ebf\u4e4b\u95f4\u7684\u8ddd\u79bb\u548c\u63a5\u6536\u4fe1\u53f7\u7684\u76f8\u4f4d\u6765\u786e\u5b9a\u5230\u8fbe\u89d2\u3002<\/p>\n\n\n\n

\"\"
\u56fe 2\uff1aAoA \u65b9\u6cd5<\/figcaption><\/figure>\n\n\n\n

AoD \u8bbe\u8ba1\u7528\u4e8e\u5ba4\u5185\u5bfc\u822a\u5bfb\u8def\u7b49\u5e94\u7528\u3002AoD \u63a5\u6536\u5668\uff08\u4f8b\u5982\u7535\u8bdd\uff09\u63a5\u6536\u7531\u56fa\u5b9a AoD \u53d1\u5c04\u5668\uff08\u4f8b\u5982\u5b89\u88c5\u5728\u5929\u82b1\u677f\u4e0a\uff09\u53d1\u5c04\u7684\u5b9a\u5411\u4fe1\u53f7\uff0c\u8be5\u53d1\u5c04\u5668\u914d\u5907\u6700\u5c11\u6709\u4e24\u4e2a\u5929\u7ebf\u7684\u5929\u7ebf\u9635\u5217\u3002\u4e0e AOA \u4e00\u6837\uff0c\u901a\u8fc7\u4f7f\u7528\u4fe1\u53f7\u7684\u76f8\u4f4d\u4fe1\u606f\u6765\u786e\u5b9a\u89d2\u5ea6\u3002<\/p>\n\n\n\n

\"\"
\u56fe 3\uff1aAoD \u65b9\u6cd5<\/figcaption><\/figure>\n\n\n\n

\u84dd\u7259 5.1 \u5b9a\u9891\u6269\u5c55\u4fe1\u53f7 (CTE)<\/strong><\/p>\n\n\n\n

\u8981\u542f\u7528 AoA \u548c AoD\uff0c\u5fc5\u987b\u6d4b\u91cf\u4fe1\u53f7\u7684\u76f8\u4f4d\u3002\u9488\u5bf9\u5b9a\u5411\uff0c\u84dd\u7259 5.1 \u6838\u5fc3\u89c4\u8303\u589e\u52a0\u4e86\u4e00\u4e2a\u5b9a\u9891\u6269\u5c55<\/em><\/strong> (CTE) \u5b57\u6bb5\uff0c\u8be5\u5b57\u6bb5\u662f\u4e00\u4e2a\u4f4d\u5e8f\u5217\uff0c\u6301\u7eed\u65f6\u95f4\u5728 16 \u5fae\u79d2\u5230 160 \u5fae\u79d2\u4e4b\u95f4\u3002\u53ea\u6709\u4ee5 1 Mbps \u7684\u901f\u7387\uff08\u5f3a\u5236\u901f\u7387\uff0c\u4e5f\u53ef\u9009\u62e9 2 Mbps\uff09\u8fd0\u884c\u7684\u84dd\u7259 LE \u652f\u6301 CTE\u3002CTE \u5b57\u6bb5\u5305\u542b\u4e00\u7cfb\u5217\u7ecf\u8fc7\u8c03\u5236\u7684 1 \u4f4d\uff0c\u5fc5\u987b\u4f7f\u7528\u6052\u5b9a\u6ce2\u957f\u4ee5\u4e00\u79cd\u9891\u7387\u53d1\u5c04\uff0c\u4ee5\u4fbf\u6d4b\u91cf\u63a5\u6536\u4fe1\u53f7\u7684\u76f8\u4f4d\u3002\u56e0\u6b64\uff0c\u4fe1\u53f7\u4e0d\u53d7\u767d\u5316\u7684\u5f71\u54cd\uff0c\u767d\u5316\u662f\u4e00\u79cd\u5bf9\u4fe1\u53f7\u8fdb\u884c\u52a0\u6270\u4ee5\u786e\u4fdd\u4e0d\u4f1a\u51fa\u73b0\u957f\u4e32 1 \u6216 0 \u7684\u8fc7\u7a0b\u3002<\/p>\n\n\n\n

\"\"
\u56fe 4\uff1aCTE<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u5982\u4f55\u6d4b\u8bd5\u84dd\u7259 5.1\uff1f<\/strong><\/p>\n\n\n\n

\u6210\u529f\u5f15\u5165\u5b9a\u4f4d\u670d\u52a1\u6280\u672f\u7684\u5173\u952e\u662f\u4f4d\u7f6e\u6d4b\u91cf\u7684\u7cbe\u5ea6\u3002\u84dd\u7259 5.1 \u7684\u76ee\u6807\u662f\u63d0\u4f9b\u4e9a\u7c73\u7ea7\u7684\u7cbe\u5ea6\u3002\u9a8c\u8bc1\u89e3\u51b3\u65b9\u6848\u5728\u786e\u4fdd\u7cfb\u7edf\u6027\u80fd\u65b9\u9762\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002<\/p>\n\n\n\n

\u84dd\u7259 SIG \u66f4\u65b0\u4e86\u84dd\u7259 PHY \u6d4b\u8bd5\u89c4\u8303\uff0c\u5176\u4e2d\u5305\u542b\u5bf9\u8fd9\u4e9b\u5168\u65b0\u5b9a\u5411\u529f\u80fd\u7684\u9a8c\u8bc1\u3002\u4e3a AoA \u548c AoD \u65b9\u6cd5\u7684\u53d1\u5c04\u5668\u548c\u63a5\u6536\u5668\u6d4b\u8bd5\u589e\u52a0\u4e86\u65b0\u7684\u6d4b\u8bd5\u7528\u4f8b\uff0c\u652f\u6301 1 Mbps \u548c 2 Mbps \u84dd\u7259\u6570\u636e\u901f\u7387\u7684\u5404\u79cd\u7ec4\u5408\uff0c\u4ee5\u53ca\u6807\u51c6\u4e2d\u652f\u6301\u7684 1 \u5fae\u79d2\u53ca 2 \u5fae\u79d2\u5207\u6362\u548c\u91c7\u6837\u65f6\u95f4\u3002\u603b\u4f53\u800c\u8a00\uff0cPHY \u6d4b\u8bd5\u4e2d\u589e\u52a0\u4e86 23 \u4e2a\u5168\u65b0\u6d4b\u8bd5\u7528\u4f8b\uff0c\u53ef\u6db5\u76d6 AoA \u548c AoD\u3002<\/p>\n\n\n\n

CTE \u662f\u84dd\u7259\u7684\u65b0\u6982\u5ff5\uff0c\u6d4b\u8bd5\u7528\u4f8b\u65e8\u5728\u786e\u4fdd\u5b83\u53ef\u7531\u53d1\u5c04\u5668\u6b63\u786e\u751f\u6210\u3002\u5728\u63a5\u6536\u5668\u7aef\uff0c\u52a1\u5fc5\u786e\u4fdd\u63a5\u6536\u5668 CTE \u7684 IQ \u6d4b\u91cf\u503c\u53ef\u7528\u4e8e\u51c6\u786e\u63a8\u5bfc\u51fa\u4fe1\u53f7\u7684\u76f8\u4f4d\u3002<\/p>\n\n\n\n

\"\"
\u56fe 5\uff1a\u5b8c\u6574\u7684 AoA \u548c AoD \u6d4b\u8bd5\u8bbe\u7f6e<\/figcaption><\/figure>\n\n\n\n

\u56fe 5 \u7ed9\u51fa\u4e86 AoA \u548c AoD \u53d1\u5c04\u5668\u548c\u63a5\u6536\u5668\u6d4b\u8bd5\u7684\u5b8c\u6574\u6d4b\u8bd5\u8bbe\u7f6e\u3002LitePoint \u7684 IQxel-MW 7G \u652f\u6301\u65b0\u7684\u5b9a\u5411\u6d4b\u8bd5\u7528\u4f8b\u3002\u6b64\u5916\uff0cLitePoint \u8fd8\u63d0\u4f9b IQfact+ \u8f6f\u4ef6\u5305\uff0c\u53ef\u4e3a\u9886\u5148\u7684\u84dd\u7259 5.1 \u82af\u7247\u7ec4\u63d0\u4f9b\u5b8c\u5168\u81ea\u52a8\u5316\u7684 DUT \u548c\u6d4b\u8bd5\u4eea\u63a7\u5236\u3002<\/p>\n\n\n\n

AoA <\/em>\u53d1\u5c04\u5668\u548c\u63a5\u6536\u5668\u6d4b\u8bd5<\/em><\/p>\n\n\n\n

\u5728 AoA \u53d1\u5c04\u5668\uff08\u901a\u5e38\u662f\u79fb\u52a8\u8bbe\u5907\uff09\u4e2d\uff0c\u8bbe\u5907\u53ea\u6709\u4e00\u4e2a\u5929\u7ebf\uff0c\u5e76\u4e14 PDU \u7ed3\u675f\u65f6\u65e0\u9700\u5f00\u5173\u5373\u53ef\u8fde\u7eed\u53d1\u5c04 CTE \u5b57\u6bb5\u3002\u6d4b\u8bd5\u4eea\u4f1a\u5728\u63a5\u6536\u4fe1\u53f7\u4e0a\u9a8c\u8bc1 CTE \u4fe1\u53f7\u7684\u6700\u5927\u5cf0\u503c\u529f\u7387\u548c\u5e73\u5747\u529f\u7387\uff0c\u4ee5\u53ca\u8fd9\u4e9b\u5df2\u53d1\u9001\u4fe1\u53f7\u7684\u8f7d\u6ce2\u9891\u7387\u504f\u79fb\u548c\u8f7d\u6ce2\u6f02\u79fb\u3002<\/p>\n\n\n\n

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AoD <\/em>\u63a5\u6536\u5668\u548c\u53d1\u5c04\u5668\u6d4b\u8bd5<\/em><\/p>\n\n\n\n

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\u6709\u5173 LitePoint \u7684\u84dd\u7259 5.1 \u6d4b\u8bd5\u89e3\u51b3\u65b9\u6848\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u8bbf\u95ee IQxel-MW 7G<\/a> \u548c IQfact+<\/a> \u9875\u9762\u3002<\/p>\n\n\n\n

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