{"id":99130,"date":"2024-11-13T15:08:38","date_gmt":"2024-11-13T07:08:38","guid":{"rendered":"\/\/www.viralrail.com\/?p=99130"},"modified":"2024-11-13T15:08:42","modified_gmt":"2024-11-13T07:08:42","slug":"wxtxzxhtzdff","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/99130.html","title":{"rendered":"\u65e0\u7ebf\u901a\u4fe1\u4e2d\u4fe1\u53f7\u8c03\u5236\u7684\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u3000\u3000\u5728<strong>\u65e0\u7ebf\u901a\u4fe1<\/strong>\u4e2d\uff0c<strong>\u4fe1\u53f7\u8c03\u5236<\/strong>\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u5e45\u5ea6\u8c03\u5236\uff08AM\uff09<\/strong>&nbsp;\uff1a\u901a\u8fc7\u6539\u53d8\u8f7d\u6ce2\u4fe1\u53f7\u7684\u5e45\u5ea6\u6765\u4f20\u8f93\u4fe1\u606f\u3002\u8fd9\u79cd\u8c03\u5236\u65b9\u5f0f\u5e38\u7528\u4e8e\u5e7f\u64ad\u7535\u53f0\uff0c\u9002\u7528\u4e8e\u6a21\u62df\u4fe1\u53f7\u4f20\u8f93\u548c\u7b80\u5355\u7684\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9891\u7387\u8c03\u5236\uff08FM\uff09<\/strong>&nbsp;\uff1a\u901a\u8fc7\u6539\u53d8\u8f7d\u6ce2\u4fe1\u53f7\u7684\u9891\u7387\u6765\u4f20\u9012\u4fe1\u606f\u3002FM\u8c03\u5236\u9002\u7528\u4e8e\u9ad8\u8d28\u91cf\u97f3\u9891\u4f20\u8f93\uff0c\u80fd\u591f\u51cf\u5c11\u5e72\u6270\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u97f3\u9891\u5e7f\u64ad\u548c\u9ad8\u8d28\u91cf\u8bed\u97f3\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u76f8\u4f4d\u8c03\u5236\uff08PM\uff09<\/strong>&nbsp;\uff1a\u901a\u8fc7\u6539\u53d8\u8f7d\u6ce2\u4fe1\u53f7\u7684\u76f8\u4f4d\u8fdb\u884c\u4fe1\u606f\u4f20\u8f93\u3002\u8fd9\u79cd\u8c03\u5236\u65b9\u5f0f\u5e38\u89c1\u4e8e\u6570\u5b57\u901a\u4fe1\u548c\u96f7\u8fbe\u7cfb\u7edf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6b63\u4ea4\u5e45\u5ea6\u8c03\u5236\uff08QAM\uff09<\/strong>&nbsp;\uff1a\u540c\u65f6\u6539\u53d8\u8f7d\u6ce2\u4fe1\u53f7\u7684\u5e45\u5ea6\u548c\u76f8\u4f4d\uff0c\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u9891\u8c31\u6548\u7387\u3002QAM\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6709\u7ebf\u548c\u65e0\u7ebf\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6b63\u4ea4\u9891\u5206\u590d\u7528\uff08OFDM\uff09<\/strong>&nbsp;\uff1a\u5c06\u6570\u5b57\u4fe1\u53f7\u5206\u6210\u591a\u4e2a\u4f4e\u901f\u5b50\u4fe1\u53f7\uff0c\u6bcf\u4e2a\u5b50\u4fe1\u53f7\u4e0e\u8f7d\u6ce2\u9891\u7387\u6b63\u4ea4\uff0c\u9002\u7528\u4e8e\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u5982Wi-Fi\u3001LTE\u548c5G\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8109\u51b2\u7f16\u7801\u8c03\u5236\uff08PCM\uff09<\/strong>&nbsp;\uff1a\u5c06\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\uff0c\u4f7f\u7528\u8109\u51b2\u7f16\u7801\u8868\u793a\u4fe1\u53f7\u5e45\u5ea6\uff0c\u662f\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u5e38\u7528\u7684\u8c03\u5236\u6280\u672f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5dee\u5206\u76f8\u79fb\u952e\u63a7\uff08DPSK\uff09<\/strong>&nbsp;\uff1a\u4e0e\u76f8\u79fb\u952e\u63a7\u7c7b\u4f3c\uff0c\u4f46\u76f8\u4f4d\u53d8\u5316\u76f8\u5bf9\u4e8e\u524d\u4e00\u4e2a\u7b26\u53f7\uff0c\u7528\u4e8e\u964d\u4f4e\u76f8\u4f4d\u5931\u914d\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6b63\u4ea4\u76f8\u79fb\u952e\u63a7\uff08QPSK\uff09<\/strong>&nbsp;\uff1a\u901a\u8fc7\u4e24\u8def\u6b63\u4ea4\u8f7d\u6ce2\u8fdb\u884c\u76f8\u4f4d\u8c03\u5236\uff0c\u5b9e\u73b0\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff0c\u662f\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u5e38\u7528\u7684\u6280\u672f\u4e4b\u4e00\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u8fd9\u4e9b\u8c03\u5236\u6280\u672f\u5728\u4e0d\u540c\u7684\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\u6839\u636e\u5177\u4f53\u9700\u6c42\u548c\u8bbe\u8ba1\u9009\u62e9\uff0c\u4ee5\u5b9e\u73b0\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u548c\u9891\u8c31\u5229\u7528\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 \u65e0\u7ebf\u901a\u4fe1\u4e2d\u5e45\u5ea6\u8c03\u5236(AM)\u7684\u4f18\u7f3a\u70b9\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000\u5e45\u5ea6\u8c03\u5236(AM)\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u5177\u6709\u4ee5\u4e0b\u4f18\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. \u4f18\u70b9\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u5b9e\u73b0\u7b80\u5355<\/strong>\uff1aAM\u8c03\u5236\u5668\u7684\u7535\u8def\u8bbe\u8ba1\u76f8\u5bf9\u7b80\u5355\uff0c\u6240\u9700\u7684\u5143\u4ef6\u8f83\u5c11\uff0c\u6210\u672c\u4f4e\u5ec9\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5e26\u5bbd\u9700\u6c42\u8f83\u4f4e<\/strong>\uff1a\u76f8\u6bd4\u4e8e\u9891\u7387\u8c03\u5236(FM)\u548c\u76f8\u4f4d\u8c03\u5236(PM)\uff0cAM\u6240\u9700\u7684\u5e26\u5bbd\u8f83\u5c0f\uff0c\u8fd9\u4f7f\u5f97\u5176\u5728\u67d0\u4e9b\u5e94\u7528\u4e2d\u66f4\u4e3a\u7ecf\u6d4e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u957f\u8ddd\u79bb\u5e7f\u64ad\u9002\u7528<\/strong>\uff1aAM\u7531\u4e8e\u5176\u7b80\u5355\u7684\u5b9e\u73b0\u65b9\u5f0f\u548c\u8f83\u4f4e\u7684\u5e26\u5bbd\u9700\u6c42\uff0c\u975e\u5e38\u9002\u5408\u7528\u4e8e\u957f\u8ddd\u79bb\u5e7f\u64ad\uff0c\u5982\u4e2d\u6ce2\u548c\u77ed\u6ce2\u5e7f\u64ad\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002. \u7f3a\u70b9\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u529f\u7387\u5229\u7528\u7387\u4f4e<\/strong>\uff1aAM\u8c03\u5236\u4e2d\u5927\u90e8\u5206\u80fd\u91cf\u96c6\u4e2d\u5728\u8f7d\u6ce2\u4fe1\u53f7\u4e0a\uff0c\u800c\u8fb9\u5e26\u529f\u7387\u8f83\u4f4e\uff0c\u5bfc\u81f4\u529f\u7387\u5229\u7528\u7387\u4e0d\u9ad8\u3002\u4f8b\u5982\uff0c\u5f53\u8c03\u5236\u56e0\u5b50\u4e3a100%\u65f6\uff0c\u8fb9\u5e26\u529f\u7387\u4ec5\u4e3a\u603b\u529f\u7387\u7684\u4e09\u5206\u4e4b\u4e00\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b\u5dee<\/strong>\uff1aAM\u4fe1\u53f7\u5bb9\u6613\u53d7\u5230\u566a\u58f0\u7684\u5f71\u54cd\uff0c\u63a5\u6536\u8fc7\u7a0b\u901a\u5e38\u8f83\u4e3a\u5608\u6742\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u9891\u6bb5\u4e0a\uff0c\u5e26\u5bbd\u9650\u5236\u548c\u6742\u6ce2\u95ee\u9898\u4f7f\u5f97AM\u7684\u4f7f\u7528\u7387\u5927\u5e45\u4e0b\u964d\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u97f3\u8d28\u8f83\u5dee<\/strong>\uff1a\u4e3a\u4e86\u5b9e\u73b0\u9ad8\u4fdd\u771f\u63a5\u6536\uff0c\u9700\u8981\u518d\u73b0\u9ad8\u8fbe15kHz\u7684\u6240\u6709\u97f3\u9891\u9891\u7387\uff0c\u4f46AM\u5e7f\u64ad\u7ad9\u88ab\u5206\u914d\u7684\u5e26\u5bbd\u4ec5\u4e3a10kHz\uff0c\u8fd9\u610f\u5473\u7740\u6700\u9ad8\u8c03\u5236\u9891\u7387\u53ea\u80fd\u8fbe\u52305kHz\uff0c\u8fd9\u5728\u97f3\u4e50\u7684\u6b63\u786e\u518d\u73b0\u4e0a\u663e\u5f97\u4e0d\u8db3\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9891\u5e26\u5229\u7528\u7387\u4e0d\u9ad8<\/strong>\uff1a\u5c3d\u7ba1AM\u7684\u5e26\u5bbd\u9700\u6c42\u8f83\u4f4e\uff0c\u4f46\u5176\u9891\u5e26\u5229\u7528\u7387\u4ecd\u7136\u4e0d\u9ad8\uff0c\u56e0\u4e3a\u6709\u7528\u529f\u7387\u4e3b\u8981\u96c6\u4e2d\u5728\u8fb9\u5e26\u9891\u7387\u4e0a\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 \u9891\u7387\u8c03\u5236(FM)\u5728\u51cf\u5c11\u5e72\u6270\u65b9\u9762\u7684\u5177\u4f53\u6280\u672f\u662f\u5982\u4f55\u5b9e\u73b0\u7684?<\/h2>\n\n\n\n<p>\u3000\u3000\u9891\u7387\u8c03\u5236(FM)\u5728\u51cf\u5c11\u5e72\u6270\u65b9\u9762\u7684\u5177\u4f53\u6280\u672f\u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4f9d\u8d56\u9891\u7387\u53d8\u5316\u800c\u975e\u5e45\u5ea6\u53d8\u5316<\/strong>\uff1aFM\u7cfb\u7edf\u901a\u8fc7\u6539\u53d8\u8f7d\u6ce2\u7684\u9891\u7387\u6765\u4f20\u8f93\u4fe1\u606f\uff0c\u800c\u4e0d\u662f\u50cf\u5e45\u5ea6\u8c03\u5236(AM)\u90a3\u6837\u4f9d\u8d56\u4e8e\u5e45\u5ea6\u7684\u53d8\u5316\u3002\u8fd9\u610f\u5473\u7740FM\u63a5\u6536\u5668\u53ea\u5173\u6ce8\u9891\u7387\u7684\u53d8\u5316\uff0c\u800c\u5ffd\u7565\u5e45\u5ea6\u7684\u53d8\u5316\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u7531\u9759\u6001\u548c\u566a\u58f0\u5f15\u8d77\u7684\u5e72\u6270\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6291\u5236\u90bb\u7ad9\u5e72\u6270<\/strong>\uff1aFM\u7cfb\u7edf\u80fd\u591f\u66f4\u597d\u5730\u6291\u5236\u90bb\u7ad9\u7684\u5e72\u6270\uff0c\u56e0\u4e3a\u5176\u63a5\u6536\u5668\u8f93\u51fa\u4ec5\u4f9d\u8d56\u4e8e\u9891\u7387\u53d8\u5316\u3002\u8fd9\u4f7f\u5f97FM\u5728\u9762\u5bf9\u90bb\u8fd1\u9891\u9053\u7684\u4fe1\u53f7\u65f6\uff0c\u80fd\u591f\u66f4\u6709\u6548\u5730\u5206\u79bb\u51fa\u6240\u9700\u4fe1\u53f7\uff0c\u4ece\u800c\u51cf\u5c11\u5e72\u6270\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6d88\u9664\u9759\u6001\u5e72\u6270<\/strong>\uff1aFM\u6280\u672f\u901a\u8fc7\u4f7f\u53d1\u5c04\u673a\u4ea7\u751f\u7684\u6b63\u5f26\u6ce2\u9891\u7387\u53d1\u751f\u5fae\u5c0f\u53d8\u5316\uff0c\u6709\u6548\u5730\u62b5\u5fa1\u4e86\u9759\u6001\u5e72\u6270\u3002\u8fd9\u79cd\u5fae\u5c0f\u7684\u9891\u7387\u53d8\u5316\u4f7f\u5f97\u63a5\u6536\u5668\u80fd\u591f\u66f4\u597d\u5730\u8fc7\u6ee4\u6389\u7531\u96f7\u7535\u6216\u7535\u6c14\u5e72\u6270\u5f15\u8d77\u7684\u9759\u6001\u566a\u58f0\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9ad8\u4fe1\u566a\u6bd4<\/strong>\uff1aFM\u7cfb\u7edf\u5177\u6709\u6781\u9ad8\u7684\u4fe1\u566a\u6bd4\uff0c\u53ef\u4ee5\u6d88\u9664\u81ea\u7136\u9759\u7535\u7684\u5f71\u54cd\u3002\u8fd9\u662f\u56e0\u4e3aFM\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u5373\u4f7f\u5728\u9760\u8fd1\u706b\u82b1\u7535\u673a\u3001\u95ea\u7535\u653e\u7535\u7b49\u91cd\u578b\u201c\u9759\u7535\u201d\u73af\u5883\u4e0b\uff0c\u4e5f\u80fd\u4fdd\u6301\u6781\u5176\u5b89\u9759\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u52a8\u6001\u9608\u503c\u548c\u566a\u58f0\u5730\u677f\u4f30\u8ba1<\/strong>\uff1a\u73b0\u4ee3FM\u5e72\u6270\u6291\u5236\u6280\u672f\u8fd8\u91c7\u7528\u4e86\u57fa\u4e8e\u52a8\u6001\u9608\u503c\u7684\u566a\u58f0\u5730\u677f\u4f30\u8ba1\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u901a\u8fc7\u4f7f\u7528\u5f69\u8272\u566a\u58f0NLR\u6ee4\u6ce2\u5668\u4f30\u8ba1\u7b97\u6cd5\u4ee3\u66ff\u7a84\u5e26\u6ee4\u6ce2\u7b97\u6cd5\uff0c\u89e3\u51b3\u4e86\u5728\u5e72\u6270\u5e45\u5ea6\u4f30\u8ba1\u8fc7\u7a0b\u4e2d\u76ee\u6807\u56de\u6ce2\u4fe1\u53f7\u4e22\u5931\u7684\u95ee\u9898\uff0c\u5e76\u63d0\u9ad8\u4e86\u56de\u6ce2\u4fe1\u53f7\u7684\u4fe1\u53f7\u4e0e\u566a\u58f0\u6bd4(SJR)\uff0c\u4ece\u800c\u589e\u5f3a\u4e86\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u66f4\u5927\u7684\u5e26\u5bbd\u548c\u66f4\u9ad8\u7684\u4fdd\u771f\u5ea6<\/strong>\uff1aFM\u7cfb\u7edf\u5229\u7528\u66f4\u5927\u7684\u4fe1\u9053\u5bbd\u5ea6\u548c\u66f4\u5bbd\u7684\u5e26\u5bbd\uff0c\u5b9e\u73b0\u4e86\u771f\u6b63\u7684\u9ad8\u4fdd\u771f\u5ea6\u4f20\u8f93\u3002\u8fd9\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u58f0\u97f3\u7684\u6e05\u6670\u5ea6\u548c\u903c\u771f\u5ea6\uff0c\u8fd8\u8fdb\u4e00\u6b65\u51cf\u5c11\u4e86\u7531\u4e8e\u5e26\u5bbd\u9650\u5236\u5bfc\u81f4\u7684\u5e72\u6270\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 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class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 \u8109\u51b2\u7f16\u7801\u8c03\u5236(PCM)\u5728\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u53ca\u5176\u6548\u7387\u5982\u4f55?<\/h2>\n\n\n\n<p>\u3000\u3000\u8109\u51b2\u7f16\u7801\u8c03\u5236(PCM)\u5728\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5176\u4e3b\u8981\u4f18\u70b9\u5305\u62ec\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u3001\u5931\u771f\u5c0f\u3001\u4f20\u8f93\u7279\u6027\u7a33\u5b9a\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7\u538b\u7f29\u7f16\u7801\u3001\u7ea0\u9519\u7f16\u7801\u548c\u4fdd\u5bc6\u7f16\u7801\u7b49\u6280\u672f\u63d0\u9ad8\u7cfb\u7edf\u7684\u6709\u6548\u6027\u3001\u53ef\u9760\u6027\u548c\u4fdd\u5bc6\u6027\u3002\u6b64\u5916\uff0cPCM\u6280\u672f\u8fd8\u53ef\u4ee5\u5728\u4e00\u4e2a\u7269\u7406\u4fe1\u9053\u4e0a\u4f7f\u7528\u201c\u65f6\u5206\u590d\u7528\u201d\u6280\u672f\u4f20\u8f93\u591a\u8def\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000PCM\u901a\u8fc7\u5c06\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\uff0c\u7136\u540e\u7f16\u7801\u4e3a\u4e8c\u8fdb\u5236\u6570\u5b57\u4fe1\u53f7\uff0c\u4ee5\u5b9e\u73b0\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u3002\u5177\u4f53\u8fc7\u7a0b\u5305\u62ec\u91c7\u6837\u3001\u91cf\u5316\u548c\u7f16\u7801\u4e09\u4e2a\u6b65\u9aa4\uff1a\u91c7\u6837\u662f\u5c06\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\u7684\u8fc7\u7a0b\uff0c\u91cf\u5316\u662f\u5c06\u8fde\u7eed\u7684\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u79bb\u6563\u7684\u6570\u5b57\u4fe1\u53f7\u7684\u8fc7\u7a0b\uff0c\u7f16\u7801\u5219\u662f\u5c06\u91cf\u5316\u540e\u7684\u4fe1\u53f7\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u6570\u5b57\u4fe1\u53f7\u7684\u8fc7\u7a0b\u3002\u8fd9\u79cd\u8f6c\u6362\u65b9\u5f0f\u4f7f\u5f97PCM\u4fe1\u53f7\u53ef\u4ee5\u5728\u957f\u8ddd\u79bb\u901a\u4fe1\u4e2d\u5b8c\u5168\u91cd\u4f20\uff0c\u56e0\u4e3a\u6240\u6709\u4fe1\u606f\u90fd\u5305\u542b\u5728\u4ee3\u7801\u4e2d\uff0c\u6bcf\u6b21\u4fe1\u53f7\u91cd\u590d\u65f6\u90fd\u4f1a\u91cd\u65b0\u751f\u6210\u65b0\u7684\u3001\u65e0\u566a\u58f0\u7684\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000PCM\u7cfb\u7edf\u7684\u4f18\u70b9\u8fd8\u5305\u62ec\u4f7f\u7528\u76f8\u5bf9\u4fbf\u5b9c\u7684\u6570\u5b57\u7535\u8def\uff0c\u80fd\u591f\u4e0e\u6570\u636e\u4fe1\u53f7\u5408\u5e76\u5e76\u901a\u8fc7\u9ad8\u901f\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u4f20\u8f93\u3002\u5728\u9700\u8981\u4e2d\u7ee7\u5668\u7684\u8fdc\u8ddd\u79bb\u6570\u5b57\u7535\u8bdd\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e2a\u4e2d\u7ee7\u5668\u8f93\u51fa\u7684\u5e72\u51c0PCM\u6ce2\u5f62\u53ef\u4ee5\u518d\u751f\uff0c\u800c\u8f93\u5165\u5219\u4e3a\u566a\u58f0\u5316\u7684PCM\u6ce2\u5f62\u3002\u6570\u5b57\u7cfb\u7edf\u7684\u566a\u58f0\u6027\u80fd\u901a\u5e38\u4f18\u4e8e\u6a21\u62df\u7cfb\u7edf\uff0c\u5e76\u4e14\u901a\u8fc7\u9002\u5f53\u7684\u7f16\u7801\u6280\u672f\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u964d\u4f4e\u7cfb\u7edf\u8f93\u51fa\u7684\u9519\u8bef\u6982\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u7136\u800c\uff0cPCM\u4e5f\u5b58\u5728\u4e00\u4e9b\u7f3a\u70b9\u3002\u4f8b\u5982\uff0c\u5b83\u9700\u8981\u8f83\u5927\u7684\u5e26\u5bbd\u6765\u5b9e\u73b0\u76f8\u540c\u7684\u6bd4\u7279\u7387\uff0c\u5e76\u4e14\u9700\u8981\u8f83\u9ad8\u7684\u786c\u4ef6\u6210\u672c\u548c\u529f\u8017\u3002\u6b64\u5916\uff0cPCM\u4fe1\u53f7\u7684\u4f20\u8f93\u5e26\u5bbd\u660e\u663e\u52a0\u5bbd\uff0c\u8fd9\u4f7f\u5176\u6210\u4e3a\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u57fa\u672c\u95ee\u9898\u4e4b\u4e00\u3002<\/p>\n\n\n\n<p>\u3000\u3000PCM\u5728\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u5177\u6709\u663e\u8457\u7684\u4f18\u52bf\uff0c\u5c24\u5176\u662f\u5728\u6297\u5e72\u6270\u80fd\u529b\u3001\u4f20\u8f93\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u65b9\u9762\u3002<\/p>\n\n\n\n<h2 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