{"id":224,"date":"2024-09-09T11:10:48","date_gmt":"2024-09-09T03:10:48","guid":{"rendered":"https:\/\/www.bihec.com\/think-srs\/?p=224"},"modified":"2024-09-09T11:10:48","modified_gmt":"2024-09-09T03:10:48","slug":"prs10","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/think-srs\/prs10\/","title":{"rendered":"SRS,Stanford Research Systems,\u94f7\u949f,\u94f7\u632f\u8361\u5668,PRS10"},"content":{"rendered":"

SRS<\/a>,Stanford Research Systems<\/a>,\u94f7\u949f<\/a>,\u94f7\u632f\u8361\u5668<\/a>,PRS10<\/a><\/strong><\/p>\n

\u94f7\u632f\u8361\u5668<\/strong>
\nPRS10<\/strong> \u2014 \u4f4e\u76f8\u4f4d\u566a\u58f0\u94f7\u632f\u8361\u5668\uff0c10 Hz\u65f6\u76f8\u4f4d\u566a\u58f0\u5c0f\u4e8e-130 dBc\/Hz
\n1 pps \u8f93\u5165
\n72\u5c0f\u65f6 Stratum 1 \u7ea7\u7ef4\u6301\u65f6\u95f4
\nRS-232 \u7528\u4e8e\u8bca\u65ad\u548c\u63a7\u5236
\n20\u5e74\u706f\u7ba1\u5bff\u547d<\/p>\n

\u6982\u8ff0<\/strong>
\nPRS10 \u662f\u4e00\u6b3e\u8d85\u4f4e\u76f8\u4f4d\u566a\u58f0\u768410 MHz \u94f7\u6676\u4f53\u632f\u8361\u5668\u3002\u8be5\u8bbe\u5907\u6ee1\u8db3\u5404\u79cd\u901a\u4fe1\u3001\u540c\u6b65\u548c\u4eea\u5668\u8981\u6c42\u300210 MHz \u8f93\u51fa\u7684\u76f8\u4f4d\u566a\u58f0\u8db3\u591f\u4f4e\uff0c\u53ef\u4ee5\u7528\u4f5c\u5408\u6210\u5668\u7684\u53c2\u8003\u6e90\u3002\u8be5\u8bbe\u5907\u7684\u77ed\u671f\u7a33\u5b9a\u6027\u548c\u4f4e\u73af\u5883\u7cfb\u6570\u4f7f\u5176\u6210\u4e3a\u7f51\u7edc\u540c\u6b65\u7684\u7406\u60f3\u7ec4\u4ef6\u3002\u5176\u4f4e\u8001\u5316\u7387\u4f7f\u5176\u6210\u4e3a\u7cbe\u5bc6\u9891\u7387\u6d4b\u91cf\u7684\u4f18\u79c0\u65f6\u95f4\u57fa\u51c6\u3002<\/p>\n

PRS10 \u53ef\u4ee5\u4ee51 ns\u7684\u5206\u8fa8\u7387\u5bf9\u5916\u90e81 pps \u8f93\u5165\u8fdb\u884c\u65f6\u95f4\u6807\u8bb0\u3002\u8fd9\u4e9b\u503c\u53ef\u4ee5\u901a\u8fc7RS-232\u62a5\u544a\u56de\u53bb\uff0c\u6216\u7528\u4e8e\u5c06\u8bbe\u5907\u4e0e\u5916\u90e8\u53c2\u8003\uff08\u5982GPS\uff09\u8fdb\u884c\u76f8\u4f4d\u9501\u5b9a\uff0c\u65f6\u95f4\u5e38\u6570\u53ef\u8fbe\u6570\u5c0f\u65f6\u3002\u8fd9\u4e00\u7279\u6027\u53ef\u4ee5\u4ee5\u975e\u5e38\u4f4e\u7684\u6210\u672c\u63d0\u4f9bStratum 1\u6027\u80fd\u3002<\/p>\n

PRS10 \u5728\u539f\u5b50\u9891\u7387\u6807\u51c6\u4e2d\u6811\u7acb\u4e86\u65b0\u7684\u7279\u6027\u548c\u6027\u80fd\u6c34\u5e73\u3002\u5176\u8bbe\u8ba1\u63d0\u4f9b\u4e86\u6700\u4f4e\u7684\u76f8\u4f4d\u566a\u58f0\u3001\u6700\u5927\u7684\u901a\u7528\u6027\u548c\u6700\u5bb9\u6613\u7684\u7cfb\u7edf\u96c6\u6210\u9014\u5f84\u3002<\/p>\n

\u6240\u6709\u5546\u4e1a\u94f7\u9891\u7387\u6807\u51c6\u901a\u8fc7\u5c06\u6676\u4f53\u632f\u8361\u5668\u9501\u5b9a\u5728\u94f7\u7684\u8d85\u7cbe\u7ec6\u8fc7\u6e21\u9891\u7387\uff086.834,682,612 GHz\uff09\u6765\u5de5\u4f5c\u3002\u94f7\u653e\u7535\u706f\u53d1\u51fa\u7684\u5149\u7ecf\u8fc7\u5171\u632f\u8154\u65f6\uff0c\u94f7\u84b8\u6c14\u5728\u63a5\u8fd1\u8fc7\u6e21\u9891\u7387\u7684\u5fae\u6ce2\u529f\u7387\u4e0b\uff0c\u4f1a\u4f7f\u5149\u5f3a\u5ea6\u4e0b\u964d\u7ea60.1%\u3002\u6676\u4f53\u632f\u8361\u5668\u901a\u8fc7\u68c0\u6d4b\u5149\u7684\u4e0b\u964d\u6765\u7a33\u5b9a\u94f7\u7684\u8fc7\u6e21\u9891\u7387\uff0c\u540c\u65f6\u626b\u63cf\u53c2\u8003\u4e8e\u6676\u4f53\u7684RF\u9891\u7387\u5408\u6210\u5668\u3002<\/p>\n

Rb \u706f\u7ba1\u4e0e\u7269\u7406\u5305<\/strong>
\nPRS10 \u4f7f\u7528\u4e00\u4e2a10 MHz \u65f6\u949f\u7684\u5fae\u63a7\u5236\u5668\u6765\u63a7\u5236\u6240\u6709\u64cd\u4f5c\uff0c\u5e76\u5141\u8bb8\u901a\u8fc7RS-232\u63a5\u53e3\u8fdb\u884c\u8bca\u65ad\u3001\u6d4b\u91cf\u548c\u5c01\u95ed\u5f0f\u6821\u51c6\u3002\u5904\u7406\u5668\u626b\u63cfRF\u5408\u6210\u5668\uff0c\u540c\u6b65\u68c0\u6d4b\u6765\u81ea\u7269\u7406\u5305\u7684\u5149\u5b66\u4fe1\u53f7\uff0c\u5e76\u901a\u8fc722\u4f4dDAC\u548c\u53d8\u5bb9\u4e8c\u6781\u7ba1\u5c0610 MHz\u6676\u4f53\u632f\u8361\u5668\u9501\u5b9a\u5230\u94f7\u7684\u8fc7\u6e21\u9891\u7387\u3002<\/p>\n

\u8bbe\u5907\u5f00\u673a\u65f6\uff0c\u5904\u7406\u5668\u4f1a\u5bf9\u53d8\u5bb9\u4e8c\u6781\u7ba1\u65bd\u52a0\u4e0e\u4e0a\u6b21\u9501\u5b9a\u503c\u5bf9\u5e94\u7684\u7535\u538b\u3002\u9891\u7387\u9501\u5b9a\u4f3a\u670d\u5728\u68c0\u6d4b\u5230\u6709\u7528\u7684\u5171\u632f\u4fe1\u53f7\u4e4b\u524d\u4f1a\u88ab\u7981\u7528\uff0c\u4ece\u800c\u5728\u8bbe\u5907\u52a0\u70ed\u8fc7\u7a0b\u4e2d\u63d0\u4f9b\u5e73\u6ed1\u8fc7\u6e21\u3002\u5982\u679c\u7269\u7406\u5305\u51fa\u73b0\u95ee\u9898\uff0c\u8bbe\u5907\u5c06\u6682\u505c\u9891\u7387\u4f3a\u670d\uff0c\u5e76\u4fdd\u6301\u53d8\u5bb9\u4e8c\u6781\u7ba1\u7535\u538b\u5728\u4e0a\u6b21\u9501\u5b9a\u503c\u3002<\/p>\n

\u94f7\u9891\u7387\u6807\u51c6\u5236\u9020\u5546\u6709\u65f6\u4f1a\u4f7f\u7528\u4e0e\u94f7\u8fc7\u6e21\u9891\u7387\u7cbe\u786e\u5b50\u500d\u6570\u7684\u6676\u4f53\u9891\u7387\uff0c\u4ee5\u7b80\u5316RF\u9891\u7387\u5408\u6210\u5668\u7684\u8bbe\u8ba1\u3002\u4e00\u4e9b\u8bbe\u8ba1\u4f7f\u7528DDS\u5408\u6210\u5668\uff0c\u7531\u6676\u4f53\u65f6\u949f\u751f\u621010 MHz \u8f93\u51fa\u3002\u901a\u5e38\uff0c\u6676\u4f53\u9891\u7387\u4f1a\u88ab\u8c03\u5236\uff0c\u4ee5\u4fbf\u626b\u63cf\u5408\u6210\u5668\u901a\u8fc7\u8fc7\u6e21\u9891\u7387\u3002\u8fd9\u4e9b\u6676\u4f53\u901a\u5e38\u5728\u57fa\u672c\u6a21\u5f0f\u4e0b\u64cd\u4f5c\uff0c\u4e14\u4e0d\u8fdb\u884c\u6e29\u5ea6\u7a33\u5b9a\u3002\u867d\u7136\u8fd9\u4e9b\u65b9\u6cd5\u8bbe\u8ba1\u4e0a\u8f83\u7b80\u5355\uff0c\u4f46\u8f93\u51fa\u7684\u76f8\u4f4d\u566a\u58f0\u3001\u77ed\u671f\u7a33\u5b9a\u6027\u548c\u6742\u6563\u5185\u5bb9\u4f1a\u53d7\u5f71\u54cd\u3002<\/p>\n

\u65b9\u5757\u56fe<\/strong>
\n\u76f8\u6bd4\u4e4b\u4e0b\uff0cPRS10 \u768410 MHz \u8f93\u51fa\u76f4\u63a5\u6765\u81ea\u4e00\u4e2a\u7b2c3\u6b21\u8c10\u6ce2\u3001\u5e94\u529b\u8865\u507f\uff08SC-cut\uff09\u6676\u4f53\u632f\u8361\u5668\uff0c\u5728\u5176\u5e73\u5766\u6e29\u5ea6\u4e0b\u7684\u7089\u4e2d\u64cd\u4f5c\u3002\u91c7\u7528\u4e00\u4e2a\u53cc\u73afRF\u5408\u6210\u5668\uff0c\u6676\u4f53IF\u4e3a22.482 MHz\uff0c\u7528\u4e8e\u751f\u6210359.72 MHz\uff0c\u5e76\u901a\u8fc7\u6b65\u8fdb\u6062\u590d\u4e8c\u6781\u7ba1\u751f\u62106.834 GHz\u3002\u8fd9\u79cd\u65b9\u6cd5\u5177\u6709\u51e0\u4e2a\u4f18\u70b9\uff1a\u76f8\u4f4d\u566a\u58f0\u975e\u5e38\u4f4e\uff0810 Hz\u504f\u79fb\u65f6\u5c0f\u4e8e-130 dBc\/Hz\uff09\uff0c\u6ca1\u6709\u6742\u6563\u5206\u91cf\uff0c\u4e14\u5982\u679c\u7269\u7406\u5305\u672a\u80fd\u63d0\u4f9b\u9501\u5b9a\u4fe1\u53f7\uff0c\u8f93\u51fa\u4f1a\u8868\u73b0\u826f\u597d\uff08\u672a\u9501\u5b9a\u5230\u94f7\u65f6\u8001\u5316\u7ea6\u4e3a5 \u00d7 10^-10\/\u5929\uff09\u3002PRS10 \u7684\u76f8\u4f4d\u566a\u58f0\u56fe\u663e\u793a\uff0c10 MHz\u65f6\u76f8\u4f4d\u566a\u58f0\u572810 Hz\u504f\u79fb\u5904\u51cf\u5c11\u4e8642 dB\uff0c\u76f8\u6bd4\u4e8e\u4f20\u7edf\u7684\u94f7\u6807\u51c6\u3002<\/p>\n

\u5386\u53f2\u4e0a\uff0c\u94f7\u9891\u7387\u6807\u51c6\u7684\u5bff\u547d\u901a\u5e38\u7531\u653e\u7535\u706f\u4e2d\u7684\u94f7\u8017\u5c3d\u51b3\u5b9a\u3002\u4e3a\u4e86\u907f\u514d\u8fc7\u591a\u7684\u95ea\u70c1\u566a\u58f0\uff0c\u5236\u9020\u5546\u4f1a\u5728\u7403\u5f62\u653e\u7535\u706f\u4e2d\u88c5\u5165\u5c11\u4e8e100<\/a> \u00b5g \u7684\u94f7\u3002PRS10 \u4f7f\u7528\u88c5\u67091 mg \u94f7\u7684\u4fa7\u81c2\u706f\u3002\u8fd9\u79cd\u8bbe\u8ba1\u6d88\u9664\u4e86\u94f7\u8017\u5c3d\u4f5c\u4e3a\u6545\u969c\u673a\u5236\uff0c\u5e76\u5728\u6ca1\u6709\u8fc7\u591a\u95ea\u70c1\u566a\u58f0\u7684\u60c5\u51b5\u4e0b\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u6e29\u5ea6\u63a7\u5236\u3002<\/p>\n

\u76f8\u4f4d\u566a\u58f0<\/strong>
\nGPS \u8ddf\u8e2a<\/strong><\/p>\n

PRS10 \u7684\u9891\u7387\u504f\u79fb\u548c\u957f\u671f\u8001\u5316\u53ef\u4ee5\u901a\u8fc7\u4e0e\u5177\u6709\u66f4\u597d\u957f\u671f\u7a33\u5b9a\u6027\u7684\u6e90\uff08\u5982GPS\u65f6\u95f4\u63a5\u6536\u5668\u76841 pps\u4fe1\u53f7\uff09\u8fdb\u884c\u76f8\u4f4d\u9501\u5b9a\u6765\u6d88\u9664\u3002\u5982Allan\u65b9\u5dee\u56fe\u6240\u793a\uff0cGPS\u7684\u77ed\u671f\u7a33\u5b9a\u6027\u8f83\u5dee\uff08\u7ea65,000 \u00d7 10^-12\uff09\uff0c\u76f8\u6bd4\u4e4b\u4e0bPRS10\u7684\u7a33\u5b9a\u6027\uff08\u7ea65 \u00d7 10^-12\uff09\u66f4\u597d\u3002\u7136\u800c\uff0c\u7ecf\u8fc7\u6570\u5c0f\u65f6\uff0cGPS\u7684\u7a33\u5b9a\u6027\u66f4\u9ad8\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u5c06PRS10\u4e0eGPS\u8fdb\u884c\u957f\u65f6\u95f4\u5e38\u6570\u7684\u76f8\u4f4d\u9501\u5b9a\u6765\u63d0\u9ad8\u7a33\u5b9a\u6027\u3002<\/p>\n

PRS10 \u53ef\u4ee5\u5bf91 pps \u8f93\u5165\u8fdb\u884c\u65f6\u95f4\u6807\u8bb0\u6216\u76f8\u4f4d\u9501\u5b9a\uff0c\u5e76\u63d0\u4f9b\u53ef\u8c03\u76841 pps \u8f93\u51fa\u3002\u8f93\u5165\u53ef\u4ee5\u4ee51 ns\u7684\u5206\u8fa8\u7387\u8fdb\u884c\u65f6\u95f4\u6807\u8bb0\uff0c\u7ed3\u679c\u53ef\u4ee5\u901a\u8fc7RS-232\u63a5\u53e3\u8bfb\u53d6\u3002\u5728\u8ddf\u8e2a\u5916\u90e8\u8f93\u5165\u65f6\uff0c\u65f6\u95f4\u5e38\u6570\u53ef\u4ee5\u8bbe\u7f6e\u4e3a5\u5206\u949f\u81f318\u5c0f\u65f6\u30021 pps \u8f93\u51fa\u53ef\u4ee5\u57280\u81f3999,999,999 ns\u8303\u56f4\u5185\u4ee51 ns\u5206\u8fa8\u7387\u79fb\u52a8\uff0c\u901a\u8fc7RS-232\u63a5\u53e3\u8bbe\u7f6e\u3002<\/p>\n

Allan\u65b9\u5dee<\/strong>
\n\u5f53\u65bd\u52a0\u5916\u90e81 pps\u4fe1\u53f7\u65f6\uff0cPRS10 \u5c06\u9a8c\u8bc1\u8be5\u8f93\u5165\u7684\u5b8c\u6574\u6027\uff0c\u7136\u540e\u5c06\u51761 pps \u8f93\u51fa\u4e0e\u5916\u90e8\u8f93\u5165\u5bf9\u9f50\u3002\u5904\u7406\u5668\u5c06\u901a\u8fc7\u5728\u5171\u632f\u8154\u5185\u90e8\u63a7\u5236\u4e00\u4e2a\u5c0f\u7684\u78c1\u573a\u8c03\u6574\u6765\u7ee7\u7eed\u8ddf\u8e2a1 pps \u8f93\u51fa\u4e0e1 pps \u8f93\u5165\u7684\u5339\u914d\u3002<\/p>\n

\u6807\u51c6\u63a5\u53e3\u8fde\u63a5\u5668<\/strong>
\n\u63a5\u53e3\u8fde\u63a5\u5668\u548c\u8bbe\u5907\u5f62\u5f0f\u56e0\u5b50\u4e0eEfratom\u7684FRS\u94f7\u9891\u7387\u6807\u51c6\u517c\u5bb9\u3002\u5728\u9ed8\u8ba4\u914d\u7f6e\u4e0b\uff0cPRS10 \u4f7f\u7528\u9488\u811a#4 \u548c#7 \u8fdb\u884cRS-232\u63a5\u53e3\uff0c\u4ee5\u63d0\u4f9b\u5b8c\u6574\u7684\u7cfb\u7edf\u8bca\u65ad\u548c\u63a7\u5236\u3002\u5185\u90e8\u786c\u4ef6\u8df3\u7ebf\u5141\u8bb8\u5c06\u8fd9\u4e9b\u9488\u811a\u914d\u7f6e\u4e3a\u6a21\u62df\u8f93\u51fa\uff0c\u4ee5\u76d1\u6d4b\u706f\u5149\u5f3a\u5ea6\u548c\u53d8\u5bb9\u4e8c\u6781\u7ba1\u7535\u538b\uff0c\u786e\u4fdd\u4e0eFRS\u7684\u5b8c\u5168\u517c\u5bb9\u3002<\/p>\n

PRS10 \u89c4\u683c<\/strong><\/p>\n

\u8f93\u51fa<\/strong><\/p>\n