{"id":83982,"date":"2024-01-08T11:55:13","date_gmt":"2024-01-08T03:55:13","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=83982"},"modified":"2024-01-08T11:55:17","modified_gmt":"2024-01-08T03:55:17","slug":"scdtdyl","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/83982.html","title":{"rendered":"\u6570\u4f20\u7535\u53f0\u7684\u539f\u7406"},"content":{"rendered":"\n<p>\u3000\u3000<strong>\u6570\u4f20\u7535\u53f0<\/strong>\u662f\u4e00\u79cd\u91cd\u8981\u7684\u901a\u4fe1\u8bbe\u5907\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u65e0\u7ebf\u901a\u4fe1\u3001\u536b\u661f\u901a\u4fe1\u7b49\u9886\u57df\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u6570\u4f20\u7535\u53f0\u7684\u539f\u7406\u53ca\u5176\u5e94\u7528\uff0c\u5e26\u60a8\u4e86\u89e3\u8fd9\u4e00\u6280\u672f\u7684\u5de5\u4f5c\u539f\u7406\u3001\u7279\u70b9\u4ee5\u53ca\u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001\u6570\u4f20\u7535\u53f0\u7684\u5b9a\u4e49\u4e0e\u4f5c\u7528<\/h2>\n\n\n\n<p>\u3000\u3000<strong>\u6570\u4f20\u7535\u53f0\uff0c\u5168\u79f0\u4e3a\u6570\u5b57\u4f20\u8f93\u7535\u53f0\uff0c\u662f\u4e00\u79cd\u901a\u8fc7\u7535\u78c1\u6ce2\u4f20\u8f93\u6570\u5b57\u4fe1\u53f7\u7684\u65e0\u7ebf\u901a\u4fe1\u8bbe\u5907\u3002\u5b83\u80fd\u591f\u5c06\u6570\u5b57\u4fe1\u53f7\u8f6c\u5316\u4e3a\u7535\u78c1\u6ce2\uff0c\u5e76\u901a\u8fc7\u7a7a\u95f4\u4f20\u64ad\u5b9e\u73b0\u4fe1\u606f\u7684\u4f20\u8f93<\/strong>\u3002\u6570\u4f20\u7535\u53f0\u5728\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u4e2d\u8d77\u5230\u4e86\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u80fd\u591f\u5b9e\u73b0\u9ad8\u901f\u3001\u7a33\u5b9a\u3001\u53ef\u9760\u7684\u6570\u5b57\u4fe1\u53f7\u4f20\u8f93\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u536b\u661f\u901a\u4fe1\u3001\u65e0\u7ebf\u7535\u901a\u4fe1\u3001\u79fb\u52a8\u901a\u4fe1\u7b49\u9886\u57df\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001\u6570\u4f20\u7535\u53f0\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. \u6570\u5b57\u4fe1\u53f7\u7684\u751f\u6210\u4e0e\u7f16\u7801<\/h3>\n\n\n\n<p>\u3000\u3000\u6570\u4f20\u7535\u53f0\u9996\u5148\u9700\u8981\u5c06\u8981\u4f20\u8f93\u7684\u4fe1\u606f\u8f6c\u5316\u4e3a\u6570\u5b57\u4fe1\u53f7\u3002\u8fd9\u4e00\u8fc7\u7a0b\u901a\u5e38\u5305\u62ec\u4fe1\u53f7\u91c7\u6837\u3001\u91cf\u5316\u548c\u7f16\u7801\u7b49\u6b65\u9aa4\u3002\u4fe1\u53f7\u91c7\u6837\u662f\u5c06\u8fde\u7eed\u7684\u6a21\u62df\u4fe1\u53f7\u8f6c\u5316\u4e3a\u79bb\u6563\u7684\u6570\u5b57\u4fe1\u53f7\uff0c\u91c7\u6837\u9891\u7387\u7684\u9009\u62e9\u5bf9\u4fe1\u53f7\u8d28\u91cf\u6709\u7740\u91cd\u8981\u5f71\u54cd\u3002\u91cf\u5316\u662f\u5c06\u91c7\u6837\u5f97\u5230\u7684\u79bb\u6563\u4fe1\u53f7\u8f6c\u5316\u4e3a\u4e00\u7cfb\u5217\u79bb\u6563\u7684\u6570\u5b57\u503c\uff0c\u901a\u5e38\u4f7f\u7528\u4e8c\u8fdb\u5236\u8868\u793a\u3002\u7f16\u7801\u5219\u662f\u5c06\u79bb\u6563\u7684\u6570\u5b57\u503c\u6309\u7167\u4e00\u5b9a\u89c4\u5219\u8fdb\u884c\u7f16\u7801\uff0c\u5e38\u89c1\u7684\u7f16\u7801\u65b9\u5f0f\u6709PCM\u3001\u538b\u7f29\u7f16\u7801\u7b49\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002. \u6570\u5b57\u4fe1\u53f7\u7684\u8c03\u5236\u4e0e\u89e3\u8c03<\/h3>\n\n\n\n<p>\u3000\u3000\u6570\u4f20\u7535\u53f0\u5c06\u7f16\u7801\u540e\u7684\u6570\u5b57\u4fe1\u53f7\u901a\u8fc7\u8c03\u5236\u6280\u672f\u8f6c\u5316\u4e3a\u9002\u5408\u65e0\u7ebf\u4f20\u8f93\u7684\u7535\u78c1\u6ce2\u4fe1\u53f7\u3002\u8c03\u5236\u7684\u76ee\u7684\u662f\u5c06\u6570\u5b57\u4fe1\u53f7\u7684\u9891\u7387\u3001\u632f\u5e45\u7b49\u7279\u6027\u8f6c\u5316\u4e3a\u4e0e\u8f7d\u6ce2\u4fe1\u53f7\u76f8\u9002\u5e94\u7684\u7279\u6027\u3002\u5e38\u89c1\u7684\u8c03\u5236\u65b9\u5f0f\u6709\u9891\u79fb\u952e\u63a7(FSK)\u3001\u76f8\u79fb\u952e\u63a7(PSK)\u3001\u6b63\u4ea4\u632f\u5e45\u8c03\u5236(QAM)\u7b49\u3002\u89e3\u8c03\u5219\u662f\u5c06\u63a5\u6536\u5230\u7684\u7535\u78c1\u6ce2\u4fe1\u53f7\u6062\u590d\u4e3a\u539f\u59cb\u7684\u6570\u5b57\u4fe1\u53f7\uff0c\u4f7f\u5176\u80fd\u591f\u88ab\u63a5\u6536\u8bbe\u5907\u6b63\u786e\u89e3\u8bfb\u548c\u5904\u7406\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003. \u4fe1\u53f7\u7684\u4f20\u8f93\u4e0e\u63a5\u6536<\/h3>\n\n\n\n<p>\u3000\u3000\u7ecf\u8fc7\u8c03\u5236\u540e\u7684\u7535\u78c1\u6ce2\u4fe1\u53f7\u901a\u8fc7\u5929\u7ebf\u8fdb\u884c\u4f20\u8f93\uff0c\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4f1a\u53d7\u5230\u591a\u5f84\u6548\u5e94\u3001\u566a\u58f0\u7b49\u5e72\u6270\u56e0\u7d20\u7684\u5f71\u54cd\u3002\u63a5\u6536\u7aef\u7684\u6570\u4f20\u7535\u53f0\u901a\u8fc7\u5929\u7ebf\u63a5\u6536\u5230\u4fe1\u53f7\u540e\uff0c\u8fdb\u884c\u89e3\u8c03\u3001\u89e3\u7801\u7b49\u5904\u7406\uff0c\u5c06\u6570\u5b57\u4fe1\u53f7\u8f6c\u5316\u4e3a\u53ef\u8bfb\u53d6\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001\u6570\u4f20\u7535\u53f0\u7684\u7279\u70b9\u4e0e\u4f18\u52bf<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u30001. \u9ad8\u901f\u4f20\u8f93\u80fd\u529b\uff1a\u6570\u4f20\u7535\u53f0\u80fd\u591f\u5b9e\u73b0\u9ad8\u901f\u7684\u6570\u5b57\u4fe1\u53f7\u4f20\u8f93\uff0c\u80fd\u591f\u6ee1\u8db3\u5927\u5bb9\u91cf\u6570\u636e\u7684\u4f20\u8f93\u9700\u6c42\u3002<\/li>\n\n\n\n<li>\u3000\u30002. \u6297\u5e72\u6270\u80fd\u529b\u5f3a\uff1a\u6570\u4f20\u7535\u53f0\u91c7\u7528\u6570\u5b57\u4fe1\u53f7\u4f20\u8f93\uff0c\u5bf9\u4e8e\u566a\u58f0\u3001\u5e72\u6270\u7b49\u5916\u754c\u56e0\u7d20\u5177\u6709\u8f83\u5f3a\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u3000\u30003. \u53ef\u9760\u6027\u9ad8\uff1a\u6570\u4f20\u7535\u53f0\u901a\u8fc7\u5dee\u9519\u68c0\u6d4b\u3001\u7ea0\u9519\u7f16\u7801\u7b49\u6280\u672f\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\uff0c\u80fd\u591f\u6709\u6548\u907f\u514d\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\u3002<\/li>\n\n\n\n<li>\u3000\u30004. 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\u9ad8\u901f\u7387\u4f20\u8f93\uff1a\u968f\u7740\u6570\u636e\u9700\u6c42\u7684\u4e0d\u65ad\u589e\u52a0\uff0c\u6570\u4f20\u7535\u53f0\u5c06\u4f1a\u671d\u7740\u66f4\u9ad8\u901f\u7684\u4f20\u8f93\u7387\u53d1\u5c55\uff0c\u4ee5\u6ee1\u8db3\u5927\u5bb9\u91cf\u6570\u636e\u7684\u4f20\u8f93\u9700\u6c42\u3002<\/li>\n\n\n\n<li>\u3000\u30002. \u4f4e\u529f\u8017\u6280\u672f\uff1a\u6570\u4f20\u7535\u53f0\u5c06\u4f1a\u91c7\u7528\u66f4\u5148\u8fdb\u7684\u4f4e\u529f\u8017\u6280\u672f\uff0c\u63d0\u9ad8\u8bbe\u5907\u7684\u80fd\u6548\uff0c\u5ef6\u957f\u7535\u6c60\u5bff\u547d\u3002<\/li>\n\n\n\n<li>\u3000\u30003. \u591a\u9891\u6bb5\u9002\u5e94\uff1a\u6570\u4f20\u7535\u53f0\u5c06\u4f1a\u652f\u6301\u66f4\u591a\u7684\u9891\u6bb5\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u573a\u666f\u548c\u5e94\u7528\u7684\u9700\u6c42\u3002<\/li>\n\n\n\n<li>\u3000\u30004. 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