{"id":6996,"date":"2024-12-09T13:45:26","date_gmt":"2024-12-09T05:45:26","guid":{"rendered":"http:\/\/www.comtest.cn\/?p=6996"},"modified":"2024-12-09T13:51:29","modified_gmt":"2024-12-09T05:51:29","slug":"%e9%a2%84%e6%b5%8b%e5%85%89%e7%ba%a4%e6%96%ad%e8%a3%82%e5%92%8c%e8%96%84%e5%bc%b1%e7%82%b9","status":"publish","type":"post","link":"http:\/\/www.comtest.cn\/?p=6996","title":{"rendered":"\u9884\u6d4b\u5149\u7ea4\u65ad\u88c2\u548c\u8584\u5f31\u70b9"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>\u57fa\u4e8e\u5e03\u91cc\u6e0a\u5149\u7ea4\u5e94\u53d8\u6d4b\u91cf\u7684\u957f\u8ddd\u79bb\u67b6\u7a7a\u5149\u7f06\u5e94\u53d8 B-OTDR \u73b0\u573a\u8bd5\u9a8c<\/strong><\/h2><h1 class=\"wp-block-heading\">\u4f5c\u8005<\/h1><p>Vincent Lecoeuche\uff0cVIAVI Solutions<br>Fabien Sauron\uff0cVIAVI Solutions<br>Jean-Paul Catella\uff0cVIAVI Solutions<br>Benoit Morel\uff0cVIAVI Solutions<br>Andr\u00e9 Champav\u00e8re\uff0cVIAVI Solutions<br>Olivier Masselin\uff0cVIAVI Solutions<br>Michel Saget\uff0cVIAVI Solutions<br>Dmitry Pavlov\uff0cPJSC \u00abRostelecom\u00bb<\/p><p>\u4f7f\u7528\u5e03\u91cc\u6e0a OTDR \u5bf9\u67b6\u7a7a\u5149\u7f06\u8fdb\u884c\u8868\u5f81\u3002\u5728 152 \u5343\u7c73\u957f\u7684\u5149\u7f06\u4e0a\u4ee5 10 \u7c73\u7684\u7a7a\u95f4\u5206\u8fa8\u7387\u6d4b\u91cf\u4e86\u5149\u7ea4\u4f38\u957f\u7387\uff0c\u6700\u5927\u6807\u51c6\u504f\u5dee\u4e3a 0.0015%\uff0c\u5c55\u793a\u4e86\u9002\u7528\u4e8e\u5927\u591a\u6570\u7535\u4fe1\u94fe\u8def\u7684\u6d4b\u8bd5\u89e3\u51b3\u65b9\u6848\u3002<\/p><h1 class=\"wp-block-heading\">\u7b80\u4ecb<\/h1><p>\u7f51\u7edc\u8fd0\u8425\u5546\u9700\u8981\u4e00\u79cd\u65b9\u6cd5\u6765\u4e3b\u52a8\u9884\u6d4b\u7531\u5149\u7f06\u8fc7\u5ea6\u62c9\u4f38\u548c\u8584\u5f31\u5bfc\u81f4\u7684\u5149\u7ea4\u65ad\u88c2\u3002\u8fd9\u662f\u7531\u4e8e\u5929\u6c14\u548c\u5730\u8d28\u6761\u4ef6\u4e0d\u65ad\u6539\u53d8\u5149\u7f06\u4e0a\u7684\u5e94\u53d8\u548c\u6e29\u5ea6\u538b\u529b\u9020\u6210\u7684\u3002\u4f7f\u7528\u9884\u6d4b\u6027\u6d4b\u91cf\uff0c\u7ef4\u62a4\u64cd\u4f5c\u56e2\u961f\u53ef\u4ee5\u901a\u8fc7\u51cf\u8f7b\u5f20\u529b\u6765\u4fdd\u62a4\u7ebf\u7f06\uff0c\u6216\u8005\u5728\u4f20\u8f93\u4e2d\u65ad\u4e4b\u524d\u4e3b\u52a8\u66f4\u6362\u7ebf\u7f06\u3002\u8fd1\u5e74\u6765\uff0c\u5168\u7535\u4ecb\u8d28\u7ebf\u7f06\uff08ADSS\uff09\u89e3\u51b3\u65b9\u6848\u5728\u5149\u7ea4\u7f51\u7edc\u4e2d\u8fc5\u901f\u666e\u53ca\u3002\u4e0e\u91d1\u5c5e\u94e0\u88c5\u7ebf\u7f06\u76f8\u6bd4\uff0c\u5b83\u4eec\u5177\u6709\u6210\u672c\u66f4\u4f4e\u3001\u91cd\u91cf\u66f4\u8f7b\u3001\u64cd\u4f5c\u66f4\u7b80\u5355\u7684\u4f18\u70b9\uff0c\u540c\u65f6\u4e0d\u9700\u8981\u63a5\u5730\u3002\u7136\u800c\uff0c\u8f83\u8f7b\u7684\u7ed3\u6784\u901a\u5e38\u610f\u5473\u7740\u8f83\u4f4e\u7684\u673a\u68b0\u4fdd\u62a4\uff0c\u5e94\u8bc4\u4f30\u8fd9\u4e9b\u7ebf\u7f06\u5728\u4e25\u82db\u73af\u5883\u4e2d\u7684\u9002\u7528\u6027\u3002\u4e3a\u4e86\u516c\u5e73\u8d77\u89c1\uff0cRostelecom \u5341\u5e74\u524d\u5728\u4f0a\u5c14\u5e93\u8328\u514b\u5317\u90e8\u5b89\u88c5\u4e86 ADSS \u548c OPGW\u3002\u5728\u8be5\u5730\u533a\uff0c\u6e29\u5ea6\u8303\u56f4\u4ece -57\u2103 \u5230 +40\u2103\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u4f1a\u79ef\u7d2f 10 \u5398\u7c73\u539a\u7684\u51b0\u5c42\uff0c\u5982\u56fe 1-a \u6240\u793a\u3002\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u7ebf\u7f06\u7ed3\u6784\u53ef\u80fd\u4f1a\u5206\u5c42\uff0c\u5982\u56fe 1-b \u6240\u793a\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_01.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"435\" height=\"203\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_01.jpg\" alt=\"\" class=\"wp-image-6997\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_01.jpg 435w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_01-300x140.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_01-64x30.jpg 64w\" sizes=\"(max-width: 435px) 100vw, 435px\" \/><\/a><\/figure><\/div><p>\u5bf9\u4e8e\u8106\u5f31\u7684\u7ebf\u7f06\u7ed3\u6784\uff0c\u5185\u90e8\u5149\u7ea4\u4f38\u957f\u7387\u53ef\u80fd\u8fdc\u8fdc\u8d85\u8fc7\u5149\u7ea4\u5236\u9020\u5546\u63a8\u8350\u7684 0.2% \u7684\u6700\u5927\u503c\u3002\u7136\u800c\uff0c\u968f\u7740\u5bf9\u5f2f\u66f2\u4e0d\u654f\u611f\u7684\u5149\u7ea4\u7684\u51fa\u73b0\uff0c\u6240\u5f15\u8d77\u7684\u635f\u8017\u53ef\u80fd\u4fdd\u6301\u9002\u4e2d\uff0c\u5e76\u4e14\u6570\u636e\u4f20\u8f93\u65e0\u6545\u969c\u5730\u8fd0\u884c\u3002\u8fd9\u4e0d\u80fd\u63a9\u76d6\u8fd9\u6837\u4e00\u4e2a\u4e8b\u5b9e\uff0c\u5373\u5149\u7ea4\u73bb\u7483\u7ed3\u6784\u5728\u673a\u68b0\u4e0a\u4e0d\u518d\u575a\u56fa\uff0c\u5728 4% \u7684\u4f38\u957f\u7387\u4e0b\u4ecd\u7136\u53ef\u80fd\u65ad\u88c2\u3002\u5982\u679c\u5149\u7ea4\u635f\u8017\u4e0d\u518d\u53d7\u4e34\u754c\u5e94\u53d8\u6c34\u5e73\u7684\u5f71\u54cd\uff0c\u5219\u5e94\u91cd\u65b0\u8003\u8651\u4f20\u7edf\u7684\u6545\u969c\u6392\u67e5\u6280\u672f\u3002<\/p><p>\u5e03\u91cc\u6e0a\u9891\u8c31\u5206\u6790\u662f\u80fd\u591f\u63d0\u4f9b\u7cbe\u786e\u7684\u5206\u5e03\u5f0f\u4f38\u957f\u6d4b\u91cf\u7684\u5149\u5b66\u8868\u5f81\u65b9\u6cd5\u3002\u4f17\u6240\u5468\u77e5\uff0c\u5e03\u91cc\u6e0a\u6563\u5c04\u76f8\u4e92\u4f5c\u7528\u5177\u6709\u7ebf\u6027\u4f9d\u8d56\u4e8e\u5149\u7ea4\u4f38\u957f\u7684\u8c10\u632f\u9891\u7387\uff0c\u5e76\u4e14\u8fd9\u79cd\u6d4b\u91cf\u73b0\u5728\u5e7f\u6cdb\u7528\u4e8e\u5149\u7ea4\u4f20\u611f\u76ee\u7684\u3002\u7535\u4fe1\u94fe\u8def\u7684\u4e3b\u8981\u56f0\u96be\u662f\u5b83\u4eec\u901a\u5e38\u8d85\u8fc7 100 \u5343\u7c73\uff0c\u800c\u9ad8\u7a7a\u95f4\u5206\u8fa8\u7387\u4e5f\u6709\u671b\u6355\u6349\u5230\u6bcf\u4e00\u4e2a\u5e94\u53d8\u4e8b\u4ef6\u3002<\/p><p>\u53ef\u4ee5\u5e94\u7528\u7684\u7b2c\u4e00\u79cd\u6d4b\u91cf\u65b9\u6cd5\u88ab\u79f0\u4e3a B-OTDA\u3002\u867d\u7136\u8fd9\u79cd\u914d\u7f6e\u7531\u4e8e\u53d7\u6fc0\u7684\u76f8\u4e92\u4f5c\u7528\u800c\u63d0\u4f9b\u4e86\u6700\u5f3a\u7684\u4fe1\u53f7\uff0c\u4f46\u662f\u7531\u4e8e\u9700\u8981\u73af\u5f62\u914d\u7f6e\uff0c\u5b83\u5728\u8ddd\u79bb\u8303\u56f4\u4e0a\u53d7\u5230\u9650\u5236\u3002\u5b9e\u9645\u4e0a\uff0c\u8986\u76d6\u7684\u6700\u957f\u8ddd\u79bb\u76f8\u5f53\u4e8e\u6700\u5927 80 \u5343\u7c73\u7684\u5355\u5411\u94fe\u8def<sup>1,2<\/sup>\u3002\u901a\u8fc7\u589e\u52a0\u5206\u5e03\u5728\u7ebf\u8def\u4e0a\u7684\u5149\u653e\u5927\u5668\u5b9e\u73b0\u4e86\u66f4\u957f\u7684\u8ddd\u79bb<sup>3,4<\/sup>\uff0c\u4f46\u662f\u653e\u5927\u5668\u4e4b\u95f4 75 \u5343\u7c73\u7684\u6700\u5927\u8ddd\u79bb\u4e0d\u9002\u7528\u4e8e\u7535\u4fe1\u94fe\u8def\uff0c\u66f4\u4e0d\u7528\u8bf4\u5728\u8fd9\u6837\u7684\u8ddd\u79bb\u4e0a\u590d\u6742\u7684\u975e\u5c40\u90e8\u6548\u5e94<sup>5<\/sup>\u3002B-OTDA \u4e0d\u80fd\u9002\u5e94\u5178\u578b\u7684\u7535\u4fe1\u7535\u7f06\u5b89\u88c5\uff0c\u5e76\u4e14\u5728\u4e0d\u5206\u63a5\u8d85\u8fc7 80 \u5343\u7c73\u7684\u7ebf\u7f06\u7684\u60c5\u51b5\u4e0b\uff0c\u5b9e\u9645\u4e0a\u4e0d\u80fd\u63d2\u5165\u4ee5\u83b7\u53d6\u6d4b\u91cf\u503c\u3002<\/p><p>\u7b2c\u4e8c\u79cd\u89e3\u51b3\u65b9\u6848\u662f B-OTDR\uff0c\u5b83\u4f7f\u7528\u5355\u4e2a\u63a2\u6d4b\u4fe1\u53f7\uff0c\u4ece\u94fe\u8def\u7684\u4e00\u7aef\u53d1\u5c04\u3002B-OTDR \u83b7\u5f97\u81ea\u53d1\u53cd\u5411\u6563\u5c04\u7684\u5e03\u91cc\u6e0a\u5149\uff0c\u5982\u540c\u5177\u6709\u745e\u5229\u6563\u5c04\u7684\u5e38\u89c4 OTDR \u4e00\u6837\u3002\u5728\u5904\u7406\u9884\u7b97\u635f\u5931\u8fc7\u9ad8\u751a\u81f3\u4e2d\u65ad\u7684\u94fe\u8def\u65f6\uff0c\u8fd9\u79cd\u914d\u7f6e\u7684\u4f18\u52bf\u663e\u800c\u6613\u89c1\uff1aB-OTDR \u5c06\u59cb\u7ec8\u63d0\u4f9b\u6709\u5173\u4fe1\u606f\u3002\u5728\u5b9e\u9a8c\u5ba4\u5b9e\u9a8c\u4e2d\uff0c\u4f7f\u7528\u76f8\u5e72\u68c0\u6d4b\u548c\u62c9\u66fc\u653e\u5927\u7684\u7ec4\u5408<sup>6<\/sup>\uff0c\u8986\u76d6\u7684\u8ddd\u79bb\u8bb0\u5f55\u4e3a 150 \u5343\u7c73\uff0c\u4f46\u662f 50 \u7c73\u7684\u7a7a\u95f4\u5206\u8fa8\u7387\u548c\u8fdc\u7aef\u7684\u6d4b\u91cf\u7cbe\u5ea6\u662f\u4e0d\u591f\u7684\u3002\u76f4\u5217\u5149\u653e\u5927\u5668\u4e5f\u88ab\u63d0\u8bae\u7528\u4e8e BOTDR<sup>7<\/sup>\uff0c\u4f46\u662f\u8fd9\u540c\u6837\u4e0d\u9002\u7528\u4e8e\u7535\u4fe1\u94fe\u8def\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-medium\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01.jpg\"><img decoding=\"async\" width=\"300\" height=\"271\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01-300x271.jpg\" alt=\"\" class=\"wp-image-6998\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01-300x271.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01-1024x923.jpg 1024w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01-768x692.jpg 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01-333x300.jpg 333w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01-600x541.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01-64x58.jpg 64w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/FTH-DTSS_01.jpg 1068w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure><\/div><p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u62a5\u544a\u4e86\u4e00\u79cd\u65b0\u9896\u7684\u76f8\u5e72\u5e03\u91cc\u6e0a OTDR\uff0c\u96c6\u6210\u5230\u7535\u6c60\u4f9b\u7535\u7684\u73b0\u573a\u53ef\u90e8\u7f72\u4eea\u5668\u4e2d\u3002\u7b2c\u4e00\u4e2a\u539f\u578b\u7528\u4e8e\u63cf\u8ff0\u4e00\u4e2a 152 \u5343\u7c73\u7684\u5df2\u5b89\u88c5\u67b6\u7a7a\u94fe\u8def\u7684\u7279\u5f81\uff0c\u603b\u635f\u8017\u9884\u7b97\u4e3a 34dB\uff0c\u7a7a\u95f4\u5206\u8fa8\u7387\u4e3a 10 \u7c73\u3002\u5b83\u9700\u8981\u4ece\u94fe\u8def\u4e24\u7aef\u91c7\u96c6\u4e24\u6b21 OTDR\uff0c\u4f46\u8fd9\u662f\u80fd\u591f\u8986\u76d6\u5df2\u5b89\u88c5\u7535\u4fe1\u7ebf\u8def\u8ddd\u79bb\u7684\u6280\u672f\u3002<\/p><h1 class=\"wp-block-heading\">\u5b9e\u9a8c\u88c5\u7f6e<\/h1><p>\u6211\u4eec\u7684\u4eea\u5668\u4f7f\u7528\u76f8\u5e72\u68c0\u6d4b\u6765\u9009\u62e9\u6027\u5730\u68c0\u6d4b\u53cd\u5411\u6563\u5c04\u4fe1\u53f7\u7684\u745e\u5229\u6216\u5e03\u91cc\u6e0a\u9891\u8c31\u5206\u91cf\u3002\u8be5\u4eea\u5668\u53ef\u4ee5\u4ea7\u751f\u7528\u4e8e\u635f\u8017\u8868\u5f81\u7684\u89c4\u5219 OTDR \u8ff9\u7ebf\uff0c\u5229\u7528\u5e03\u91cc\u6e0a\u9891\u79fb\u4fe1\u606f\u6765\u786e\u5b9a\u5e94\u53d8\uff08\u5047\u8bbe\u6e29\u5ea6\u6052\u5b9a\uff09\uff0c\u5e76\u4e14\u5b83\u8fd8\u4f7f\u7528\u6717\u9053-\u666e\u62c9\u5207\u514b\u6bd4 (LPR) \u6765\u72ec\u7acb\u786e\u5b9a\u6e29\u5ea6\u548c\u5e94\u53d8<sup>8<\/sup>\u3002\u56e0\u6b64\uff0c\u7528\u6237\u53ef\u4ee5\u4efb\u610f\u4f7f\u7528\u4e09\u79cd\u7c7b\u578b\u7684 OTDR \u6d4b\u91cf\uff1a\u4fe1\u53f7\u635f\u8017\u3001\u5e94\u53d8\u548c\u6e29\u5ea6\uff0c\u4ee5\u786e\u5b9a\u5f85\u6d4b\u5149\u7ea4\u7684\u8fd0\u884c\u72b6\u51b5\u3002<\/p><h1 class=\"wp-block-heading\">\u7ed3\u679c<\/h1><p>\u5728\u8fd9\u6b21\u6d4b\u8bd5\u6d3b\u52a8\u4e2d\uff0c\u6d4b\u8bd5\u4e86\u6765\u81ea Ust-Kut\u3001Kirenga \u548c Severobaikalsk \u4e09\u4e2a\u7ad9\u70b9\u7684 7 \u6761\u5149\u7ea4\uff0c\u7d2f\u79ef\u8fdb\u884c\u4e86 23 \u6b21\u5b8c\u6574\u7684\u745e\u5229\u548c\u5e03\u91cc\u6e0a OTDR \u91c7\u96c6\uff0c\u5176\u4e2d\u5927\u591a\u6570\u662f\u53cc\u5411\u7684\u3002\u6211\u4eec\u7684\u4e3b\u8981\u7ed3\u679c\u5982\u56fe 2 \u6240\u793a\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_02.jpg\"><img decoding=\"async\" width=\"520\" height=\"866\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_02.jpg\" alt=\"\" class=\"wp-image-6999\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_02.jpg 520w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_02-180x300.jpg 180w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_02-300x500.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2024\/12\/Botdr_02-64x107.jpg 64w\" sizes=\"(max-width: 520px) 100vw, 520px\" \/><\/a><figcaption class=\"wp-element-caption\">\u56fe 2\uff1aa) \u4f7f\u7528 100 \u7eb3\u79d2\u8109\u51b2\u5728 152 \u5343\u7c73\u8303\u56f4\u5185\u8fdb\u884c\u53cc\u5411\u5e94\u53d8\u6d4b\u91cf\uff0c\u7bad\u5934\u8868\u793a\u7b2c\u4e00\u4ee3 SMF28e+ \u7684\u622a\u9762\u3002<br>b) \u7528 100 \u7eb3\u79d2\uff08\u84dd\u8272\uff09\u548c 200 \u7eb3\u79d2\uff08\u7eff\u8272\uff09\u8109\u51b2\u8bb0\u5f55\u7684\u5e94\u53d8\u4e8b\u4ef6\u3002<br>c) SMF28e \u7684\u53cc\u6a21\u5e03\u91cc\u6e0a\u9891\u8c31<\/figcaption><\/figure><\/div><p>\u56fe 2-a) \u663e\u793a\u4e86\u4ece Ust Kut \u5230 Kirenga \u7ebf\u8def\u7684\u5e94\u53d8\u4e0e\u8ddd\u79bb\u7684\u51fd\u6570\u5173\u7cfb\u3002\u5b83\u7531\u4e24\u7aef\u7684\u4e24\u4e2a\u91c7\u96c6\u7ec4\u6210\uff0c\u6765\u81ea Kirenga \u7684\u8f68\u7ebf\u88ab\u8fd8\u539f\uff0c\u4ee5\u663e\u793a\u5b8c\u6574\u7684\u94fe\u8def\u548c\u94fe\u8def\u4e2d\u70b9\u7684\u826f\u597d\u5339\u914d\u3002\u8fde\u7eed\u7684\u5e73\u53f0\uff08\u6bcf\u4e2a\u5e73\u53f0\u90fd\u6709\u4e00\u4e2a\u7279\u5b9a\u7684\u9891\u79fb\uff09\u662f\u67b6\u7a7a\u7535\u7f06\u5b89\u88c5\u7684\u5178\u578b\u7279\u5f81\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7ec4\u88c5\u597d\u7684\u7ebf\u7f06\u6bb5\u51b3\u4e0d\u4f1a\u8d85\u8fc7 15 \u5343\u7c73\uff0c\u6bcf\u6839\u7ebf\u7f06\u90fd\u5305\u542b\u4e0d\u540c\u6279\u6b21\u7684\u51e0\u6839\u5149\u7ea4\u3002\u5b9e\u9645\u4e0a\uff0c\u5e03\u91cc\u6e0a\u9891\u79fb\u7684\u53d8\u5316\u901a\u5e38\u6bd4 OTDR \u8f68\u7ebf\u4e0a\u7684\u62fc\u63a5\u8870\u51cf\u66f4\u5bb9\u6613\u68c0\u6d4b\uff0c\u5e76\u4e14\u8fd9\u53ef\u4ee5\u88ab\u5229\u7528\u3002\u6839\u636e\u5149\u7ea4\u6279\u6b21 <sup>9<\/sup>\uff0c\u7ed9\u5b9a\u5149\u7ea4\u7c7b\u578b\u7684\u5e03\u91cc\u6e0a\u9891\u79fb\u53ef\u80fd\u5728\u6807\u79f0\u503c\u9644\u8fd1\u53d8\u5316 +\/-20 MHz\uff0c\u8fd9\u5c06\u8f6c\u6362\u4e3a +\/-0.04% \u7684\u4f38\u957f\u7387\u3002\u5982\u679c\u4e25\u683c\u5e94\u7528\u5236\u9020\u5546\u63a8\u8350\u7684\u6700\u5927 0.2% \u4f38\u957f\u7387\uff0c\u8fd9\u5c06\u5e26\u6765\u5f88\u5927\u7684\u4e0d\u786e\u5b9a\u6027\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5fc5\u987b\u5c06\u5e94\u53d8\u4e8b\u4ef6\u5b9a\u4f4d\u5e76\u91cf\u5316\u4e3a\u4e0e\u5468\u56f4\u5e73\u53f0\u7684\u76f8\u5bf9\u504f\u5dee\uff0c\u8fd9\u5c06\u4f7f\u5206\u6790\u53d8\u5f97\u590d\u6742\u3002\u7136\u800c\uff0c\u6839\u636e\u5728\u6781\u7aef\u6761\u4ef6\u4e0b\u8fd0\u884c\u7684\u67b6\u7a7a\u7f51\u7edc\u7684\u5b9e\u9645\u7ecf\u9a8c\uff0c\u4eba\u4eec\u4e0d\u5f97\u4e0d\u5728\u77ed\u65f6\u95f4\u5185\u5fcd\u53d7\u9ad8\u8fbe 3% \u7684\u5e94\u53d8\u4e8b\u4ef6\u3002\u5047\u8bbe\u5149\u7ea4\u7ec4\u5408\u4e0e\u56fe 2-a) \u4e2d\u7684\u5149\u7ea4\u7ec4\u5408\u4e00\u6837\u5747\u5300\uff0c\u53ef\u4ee5\u5ffd\u7565\u8fd9\u4e9b\u4e0e\u5149\u7ea4\u76f8\u5173\u7684\u53d8\u5316\uff0c\u8ba9\u4eea\u5668\u6839\u636e\u56fa\u5b9a\u7684\u7edd\u5bf9\u9608\u503c\u81ea\u52a8\u5224\u65ad\u7ebf\u7f06\u662f\u5426\u7b26\u5408\u6807\u51c6\u3002<\/p><p>\u5728\u6ca1\u6709\u91c7\u96c6\u4e8b\u4ef6\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u6839\u636e\u5404\u79cd\u5e73\u53f0\u4e0a\u7684\u6807\u51c6\u504f\u5dee\u6765\u8bc4\u4f30\u4e0e\u4eea\u5668\u76f8\u5173\u7684\u4e0d\u786e\u5b9a\u6027\uff0c\u8fd9\u4e9b\u6807\u51c6\u504f\u5dee\u901a\u5e38\u4e3a 0.0006%\uff0c\u5728 17 dB \u94fe\u8def\u8870\u51cf\u540e\uff0c\u5728\u4e2d\u5fc3\u8fde\u63a5\u70b9\u5904\u9ad8\u8fbe 0.0015%\u3002<\/p><p>\u8bb8\u591a\u5e94\u53d8\u66f2\u7ebf\u663e\u793a\u51fa\u4e00\u7cfb\u5217\u5cf0\u503c\uff0c\u5176\u7279\u5f81\u5468\u671f\u4e3a 350 \u81f3 500 \u7c73\uff0c\u8fd9\u662f\u5854\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002\u5cf0\u503c\u632f\u5e45\u901a\u5e38\u4e3a 0.01%\uff0c\u6700\u9ad8\u6c34\u5e73\u4e3a 0.03%\u3002\u8fd9\u4e9b\u76f8\u5f53\u5c0f\u7684\u6570\u503c\u8ba9\u4eba\u5bf9\u5f53\u524d\u7684\u94fe\u8def\u72b6\u51b5\u611f\u5230\u653e\u5fc3\u3002<\/p><p>\u5fc5\u987b\u6ce8\u610f\u7684\u662f\uff0c\u4e8b\u4ef6\u5728\u5149\u7ea4\u4e0a\u7684\u4f20\u64ad\u8303\u56f4\u4e3a 150 \u5230 400 \u7c73\uff0c\u5e76\u4e14\u6d4b\u91cf\u662f\u5728 10 \u6708\u4efd\u8fdb\u884c\u7684\u3002\u636e\u63a8\u6d4b\uff0c\u7531\u4e8e\u51b0\u8377\u8f7d\uff0c\u5e94\u53d8\u8fbe\u5230\u66f4\u9ad8\u7684\u6c34\u5e73\uff0c\u5e76\u53d8\u5f97\u66f4\u52a0\u5c40\u90e8\u5316\uff0c\u800c\u5728\u590f\u5b63\uff0c\u7531\u4e8e\u7ebf\u7f06\u8fd0\u52a8\u548c\u70ed\u5faa\u73af\uff0c\u5e94\u53d8\u5f97\u5230\u91ca\u653e\u5e76\u5728\u7a7a\u95f4\u4e0a\u4f20\u64ad\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u6240\u5c55\u793a\u7684\u91c7\u96c6\u7ec6\u8282\u8db3\u4ee5\u7a81\u51fa\u7535\u7f06\u7684\u5f31\u70b9\uff0c\u5373\u4f7f\u5728\u590f\u5b63\u4e5f\u662f\u5982\u6b64\u3002<\/p><p>\u56fe 2-b) \u662f\u5e94\u53d8\u4e8b\u4ef6\u7684\u4eea\u5668\u5c4f\u5e55\u622a\u56fe\uff0c\u663e\u793a\u4e86\u7528 100 \u7eb3\u79d2\u548c 200 \u7eb3\u79d2\u8109\u51b2\u8fdb\u884c\u7684\u4e24\u6b21\u53e0\u52a0\u91c7\u96c6\u3002\u867d\u7136\u7cbe\u786e\u5ea6\u548c\u8303\u56f4\u53d7\u76ca\u4e8e\u5e73\u6ed1\u6548\u679c\u548c\u66f4\u957f\u8109\u51b2\u7684\u66f4\u9ad8\u80fd\u91cf\uff0c\u4f46\u663e\u7136\u5b83\u62b9\u53bb\u4e86\u6700\u5feb\u7684\u7ec6\u8282\u3002\u7531\u4e8e\u4e8b\u4ef6\u7684\u8303\u56f4\u53d6\u51b3\u4e8e\u8bb8\u591a\u53c2\u6570\uff08\u8d1f\u8f7d\u5206\u5e03\u3001\u7cbe\u786e\u7684\u7ebf\u7f06\u7ed3\u6784\u548c\u5b89\u88c5\u3001\u4f7f\u7528\u7684\u51dd\u80f6\u2026\u2026\uff09\uff0c\u56e0\u6b64\u5e94\u59cb\u7ec8\u4f7f\u7528\u6700\u4f73\u7684\u7a7a\u95f4\u5206\u8fa8\u7387\u3002<\/p><p>\u5e03\u91cc\u6e0a\u5149\u8c31\u8fd8\u5141\u8bb8\u8bc6\u522b\u5149\u7ea4\u7c7b\u578b\u2079\uff0c\u56fe 2-c) \u663e\u793a\u4e86\u7b2c\u4e00\u4ee3 SMF28e+ \u7684\u5178\u578b\u53cc\u6a21\u9891\u8c31\u3002\u8be5\u5149\u7ea4\u5728\u7ef4\u4fee\u65f6\u4f7f\u7528\uff0c\u800c\u5e38\u89c4\u7684\u5355\u5cf0 SMF28e \u5728\u5b89\u88c5\u65f6\u4f7f\u7528\u3002<\/p><p>\u4e0a\u8ff0\u6d4b\u91cf\u6d3b\u52a8\u53ea\u662f\u7ebf\u7f06\u7ef4\u62a4\u5468\u671f\u7684\u7b2c\u4e00\u6b65\uff0c\u53ef\u5728\u5b89\u88c5\u65f6\u6216\u6545\u969c\u6392\u67e5\u65f6\u8fdb\u884c\u3002\u6240\u6709\u540e\u7eed\u6d4b\u91cf\u53ef\u80fd\u4ee5\u76f8\u540c\u7684\u65b9\u5f0f\u91cd\u590d\uff0c\u4f46\u5efa\u8bae\u4f7f\u7528\u7b2c\u4e00\u6b21\u6d4b\u91cf\u4f5c\u4e3a\u53c2\u8003\uff0c\u5e76\u4ea7\u751f\u76f8\u5173\u6570\u636e\u3002\u8fd9\u5c06\u6d88\u9664\u4e0d\u540c\u5149\u7ea4\u5728\u6574\u4e2a\u94fe\u8def\u4e0a\u5177\u6709\u4e0d\u540c\u9891\u79fb\u7684\u95ee\u9898\u3002\u5229\u7528 LPR \u5e26\u6765\u7684\u989d\u5916\u4fe1\u606f\uff0c\u6211\u4eec\u7684\u4eea\u5668\u8fd8\u53ef\u4ee5\u89e3\u91ca\u4e24\u6b21\u6d4b\u91cf\u4e4b\u95f4\u7684\u5b63\u8282\u6027\u6e29\u5ea6\u53d8\u5316\u3002\u4e0e\u4ec5\u57fa\u4e8e\u5e03\u91cc\u6e0a\u9891\u79fb\u7684\u6d4b\u91cf\u76f8\u6bd4\uff0c\u8fd9\u5c06\u8fdb\u4e00\u6b65\u63d0\u9ad8\u7cbe\u5ea6\uff0c\u5e76\u4e14\u5bf9\u4e8e\u5e03\u91cc\u6e0a\u9891\u79fb\uff0c\u5728\u6574\u4e2a\u6e29\u5ea6\u8303\u56f4\u5185\u9884\u671f\u6709 +\/-0.1% \u7684\u53d8\u5316\u3002\u901a\u8fc7\u76f8\u5bf9\u548c\u6e29\u5ea6\u8865\u507f\u6d4b\u91cf\uff0c\u5229\u7528\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u975e\u5e38\u4f4e\u7684\u503c\uff08\u4f4e\u81f3\u4eea\u5668\u53ef\u91cd\u590d\u6027\uff09\u7684\u62a5\u8b66\u9608\u503c\uff0c\u53ef\u4ee5\u76f4\u63a5\u67e5\u660e\u5e94\u53d8\u7684\u6700\u5c0f\u53d8\u5316\u3002<\/p><h1 class=\"wp-block-heading\">\u7ed3\u8bba<\/h1><p>\u867d\u7136 B-OTDR \u6280\u672f\u5df2\u7ecf\u5b58\u5728\u5f88\u957f\u65f6\u95f4\u4e86\uff0c\u4f46\u6211\u4eec\u5c55\u793a\u4e86\u4e00\u4e2a\u73b0\u573a\u53ef\u90e8\u7f72\u7684\u4eea\u5668\uff0c\u5b83\u5177\u6709\u8db3\u591f\u7684\u52a8\u6001\u8303\u56f4\u6765\u8986\u76d6\u7535\u4fe1\u94fe\u8def\u7684\u8ddd\u79bb\u3002\u4f7f\u7528\u6211\u4eec\u7684\u539f\u578b\uff0c\u6211\u4eec\u6f14\u793a\u4e86\u5728 152 \u5343\u7c73\u94fe\u8def\u4e0a\u7684\u6b63\u786e\u64cd\u4f5c\u3002\u6211\u4eec\u7684\u5b9e\u9a8c\u5ba4\u6d4b\u8bd5\u8868\u660e\uff0c\u4ee5 400 \u7eb3\u79d2\u7684\u8109\u51b2\u5bbd\u5ea6\uff0840 \u7c73\u7684\u7a7a\u95f4\u5206\u8fa8\u7387\uff09\u53ef\u4ee5\u8fbe\u5230 200 \u5343\u7c73\u3002\u5728\u6211\u4eec\u64b0\u5199\u672c\u6587\u65f6\uff0c\u5f00\u53d1\u5df2\u7ecf\u5b8c\u6210\uff0c\u5305\u62ec\u76f8\u5bf9\u6d4b\u91cf\u3001\u70ed\u8865\u507f\u548c\u6240\u6709\u5fc5\u8981\u7684\u529f\u80fd\uff0c\u4ee5\u5145\u5206\u53d1\u6325\u4eea\u5668\u5728\u73b0\u573a\u7684\u6f5c\u529b\u3002<\/p><p>\u8be5\u89e3\u51b3\u65b9\u6848\u5728\u5546\u4e1a\u4e0a\u53ef\u4f5c\u4e3a\u4fbf\u643a\u5f0f\u4eea\u5668\u4e2d\u7684 VIAVI Strain B-OTDR \u83b7\u5f97\u3002<\/p><h1 class=\"wp-block-heading\">\u9e23\u8c22<\/h1><p>\u6211\u4eec\u8981\u611f\u8c22 Yaroslav Baranov \u548c Mikhail Nikolaev\uff0c\u524d\u8005\u4fc3\u6210\u4e86\u8fd9\u6b21\u8bd5\u9a8c\uff0c\u540e\u8005\u5728\u897f\u4f2f\u5229\u4e9a\u8fdb\u884c\u4e86\u91c7\u96c6\u3002<\/p><h1 class=\"wp-block-heading\">\u53c2\u8003<\/h1><p>1. L. Zou \u7b49\u4eba\uff0c\u201c\u4f7f\u7528 BOTDA \u957f\u671f\u76d1\u6d4b 67 \u5343\u7c73\u5b89\u88c5\u7684 OPGW \u7ebf\u7f06\u7684\u5c40\u90e8\u5e94\u529b\u53d8\u5316\uff0c\u201dSPIE \u4f1a\u8bae\u8bb0\u5f55\uff0c\u7b2c 9634 \u5377\uff0cid. 963461 4 pp\uff082015 \u5e74\uff09\u3002<br>2. X.Qian \u7b49\u4eba\uff0c\u201c157 \u5343\u7c73 BOTDA \u4e0e\u8109\u51b2\u7f16\u7801\u548c\u56fe\u50cf\u5904\u7406\uff0c\u201dProc. SPIE 9916\uff0c\u7b2c\u516d\u5c4a\u6b27\u6d32\u5149\u7ea4\u4f20\u611f\u5668\u7814\u8ba8\u4f1a\uff0c99162S\uff082016 \u5e74\uff09\u3002<br>3. Y.Dong \u7b49\u4eba\uff0c\u201c\u7ed3\u5408\u9891\u5206\u590d\u7528\u548c\u76f4\u5217 EDFA \u6269\u5c55\u5e03\u91cc\u6e0a\u5149\u65f6\u57df\u5206\u6790\u7684\u4f20\u611f\u8303\u56f4\uff0c\u201dJ.Lightwave Technol\u300230, 1161-1167\uff082012 \u5e74\uff09\u3002<br>4. F.Gyger \u7b49\u4eba\uff0c\u201c\u652f\u6301\u6df1\u6d77\u548c\u957f\u56de\u63a5\u5f00\u53d1\u7684\u8d85\u8fdc\u7a0bDTS\uff08>300 \u5343\u7c73\uff09\uff0c\u201dASME\u3002\u6d77\u4e0a\u673a\u68b0\u548c\u5317\u6781\u5de5\u7a0b\u56fd\u9645\u4f1a\u8bae\uff0c\u7b2c 6B \u5377\uff1a\u7ba1\u9053\u548c\u7acb\u7ba1\u6280\u672f\uff082014 \u5e74\uff09\u3002<br>5. L.Th\u00e9venaz \u7b49\u4eba\uff0c\u201c\u5e03\u91cc\u6e0a\u5149\u5b66\u65f6\u57df\u5206\u6790\u7cfb\u7edf\u4e2d\u7684\u8109\u51b2\u635f\u8017\u6548\u5e94\uff0c\u201dOpt. Express 21\uff0c14017-14035\uff082013 \u5e74\uff09\u3002<br>6. M. N. Alahbabi \u7b49\u4eba\uff0c\u201c\u57fa\u4e8e\u81ea\u53d1\u5e03\u91cc\u6e0a\u53cd\u5411\u6563\u5c04\u548c\u5728\u7ebf\u62c9\u66fc\u653e\u5927\u7684\u76f8\u5e72\u68c0\u6d4b\u7684 150 \u5343\u7c73\u8303\u56f4\u5206\u5e03\u5f0f\u4f20\u611f\u5668\uff0c\u201dJ. Opt. Soc. Am. B 22\uff0c1321-1324\uff082005 \u5e74\uff09\u3002<br>7. Y. T. Cho \u7b49\u4eba\uff0c\u201c\u57fa\u4e8e\u5e03\u91cc\u6e0a\u53cd\u5411\u6563\u5c04\u76f8\u5e72\u68c0\u6d4b\u7684 100 \u5343\u7c73\u5206\u5e03\u5f0f\u5149\u7ea4\u4f20\u611f\u5668\uff0c\u7a7a\u95f4\u5206\u8fa8\u7387\u4e3a 10 \u7c73\uff0c\u4f7f\u7528\u4e24\u7ea7\u8fdc\u7a0b\u6cf5\u6d66\u63ba\u94d2\u5149\u7ea4\u7ed3\u5408\u62c9\u66fc\u653e\u5927\u589e\u5f3a\uff0c\u201d\u8f7d\u4e8e\u300a\u5149\u7ea4\u4f20\u611f\u5668\u300b\uff0cOSA \u6280\u672f\u6587\u6458\uff0cTHC4\uff082006 \u5e74\uff09\u3002<br>8. P.C. Wait \u7b49\u4eba\uff0c\u201c\u5e94\u7528\u4e8e\u5206\u5e03\u5f0f\u5149\u7ea4\u4f20\u611f\u7684 Landau Placzek \u6bd4\u7387\u201d\uff0c\u5149\u5b66\u901a\u4fe1 122\uff0c\u7b2c 141-146 \u9875\uff081996 \u5e74\uff09\u3002 9. \u5eb7\u5b81\u767d\u76ae\u4e66 WP4259\uff0c\u201cBOTDR \u6d4b\u91cf\u6280\u672f\u548c\u5eb7\u5b81\u5355\u6a21\u5149\u7ea4\u7684\u5e03\u91cc\u6e0a\u53cd\u5411\u6563\u5c04\u7279\u6027\u201d\uff0c\uff082015 \u5e74\uff09\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528\u5e03\u91cc\u6e0a OTDR \u5bf9\u67b6\u7a7a\u5149\u7f06\u8fdb\u884c\u8868\u5f81\u3002\u5728 152 \u5343\u7c73\u957f\u7684\u5149\u7f06\u4e0a\u4ee5 10 \u7c73\u7684\u7a7a\u95f4\u5206\u8fa8\u7387\u6d4b\u91cf\u4e86\u5149\u7ea4\u4f38\u957f\u7387\uff0c\u6700\u5927\u6807\u51c6\u504f\u5dee\u4e3a 0.0015%\uff0c\u5c55\u793a\u4e86\u9002\u7528\u4e8e\u5927\u591a\u6570\u7535\u4fe1\u94fe\u8def\u7684\u6d4b\u8bd5\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n","protected":false},"author":2,"featured_media":7000,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[139,21,24],"tags":[525,526],"class_list":["post-6996","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fibersensing","category-blog","category-solutions","tag-b-otdr","tag-otdr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - 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