{"id":95075,"date":"2024-07-08T09:35:46","date_gmt":"2024-07-08T01:35:46","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=95075"},"modified":"2024-07-08T09:36:14","modified_gmt":"2024-07-08T01:36:14","slug":"wxtxmkyljj","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/95075.html","title":{"rendered":"\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u539f\u7406\u7b80\u4ecb"},"content":{"rendered":"\n<p>\u3000\u3000<strong><a href=\"https:\/\/baike.baidu.com\/item\/%E6%97%A0%E7%BA%BF%E9%80%9A%E4%BF%A1%E6%A8%A1%E5%9D%97\/228587\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/baike.baidu.com\/item\/%E6%97%A0%E7%BA%BF%E9%80%9A%E4%BF%A1%E6%A8%A1%E5%9D%97\/228587\" rel=\"noreferrer noopener nofollow\">\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757<\/a>\u7684\u5de5\u4f5c\u539f\u7406<\/strong>\u4e3b\u8981\u6d89\u53ca\u4fe1\u53f7\u7684\u53d1\u5c04\u548c\u63a5\u6536\u4e24\u4e2a\u8fc7\u7a0b\u3002\u5728\u4fe1\u53f7\u53d1\u5c04\u65b9\u9762\uff0c\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u9996\u5148\u5c06\u5f85\u4f20\u8f93\u7684\u6570\u636e\u8f6c\u6362\u6210\u65e0\u7ebf\u7535\u4fe1\u53f7\u3002\u8fd9\u4e00\u8fc7\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4fe1\u53f7\u7f16\u7801<\/strong>\uff1a\u5f85\u4f20\u8f93\u7684\u6570\u636e\u6216\u4fe1\u606f(\u5982\u58f0\u97f3\u3001\u56fe\u50cf\u3001\u6587\u5b57\u7b49)\u4f1a\u88ab\u8f6c\u6362\u6210\u7535\u4fe1\u53f7\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u79f0\u4e3a\u4fe1\u53f7\u7f16\u7801\uff0c\u7f16\u7801\u7684\u65b9\u5f0f\u6709\u5f88\u591a\u79cd\uff0c\u5982\u4e8c\u8fdb\u5236\u7f16\u7801\u3001\u6a21\u62df\u4fe1\u53f7\u7f16\u7801\u7b49\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8c03\u5236<\/strong>\uff1a\u7f16\u7801\u540e\u7684\u6570\u5b57\u4fe1\u53f7\u901a\u8fc7\u5fae\u63a7\u5236\u5668\u8fdb\u884c\u8c03\u5236\uff0c\u7136\u540e\u7531\u5c04\u9891\u6536\u53d1\u5668\u5c06\u5176\u8f6c\u6362\u4e3a\u65e0\u7ebf\u7535\u4fe1\u53f7\u3002\u8c03\u5236\u6280\u672f\u5305\u62ec\u6b63\u4ea4\u9891\u5206\u590d\u7528(OFDM)\u3001\u7801\u5206\u591a\u5740(CDMA)\u7b49\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u53d1\u5c04<\/strong>\uff1a\u8c03\u5236\u540e\u7684\u65e0\u7ebf\u7535\u4fe1\u53f7\u901a\u8fc7\u5929\u7ebf\u53d1\u9001\u51fa\u53bb\u3002\u5728\u53d1\u9001\u4fe1\u53f7\u524d\uff0c\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u9700\u8981\u5bf9\u53d1\u9001\u7684\u6570\u636e\u8fdb\u884c\u7f16\u7801\u548c\u52a0\u5bc6\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u5728\u4fe1\u53f7\u63a5\u6536\u65b9\u9762\uff0c\u63a5\u6536\u7aef\u7684\u6a21\u5757\u4f1a\u63a5\u6536\u5230\u65e0\u7ebf\u7535\u4fe1\u53f7\uff0c\u5e76\u5c06\u5176\u8fd8\u539f\u6210\u6570\u5b57\u4fe1\u53f7\uff0c\u4ee5\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u548c\u901a\u4fe1\u8fde\u63a5\u3002\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u63a5\u6536<\/strong>\uff1a\u63a5\u6536\u7aef\u7684\u6a21\u5757\u901a\u8fc7\u5929\u7ebf\u63a5\u6536\u5230\u6765\u81ea\u5916\u90e8\u7684\u65e0\u7ebf\u4fe1\u53f7\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u89e3\u8c03<\/strong>\uff1a\u63a5\u6536\u5230\u7684\u5c04\u9891\u4fe1\u53f7\u7ecf\u8fc7\u5c04\u9891\u6536\u53d1\u5668\u8fdb\u884c\u89e3\u8c03\uff0c\u5c06\u65e0\u7ebf\u7535\u4fe1\u53f7\u8fd8\u539f\u6210\u6570\u5b57\u4fe1\u53f7\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u5904\u7406<\/strong>\uff1a\u89e3\u8c03\u540e\u7684\u6570\u5b57\u4fe1\u53f7\u88ab\u4ea4\u7ed9\u5904\u7406\u5668\u8fdb\u4e00\u6b65\u5904\u7406\uff0c\u6700\u7ec8\u5b9e\u73b0\u6570\u636e\u7684\u4f20\u8f93\u548c\u901a\u4fe1\u8fde\u63a5\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684\u6838\u5fc3\u7ec4\u4ef6\u5305\u62ec\u8c03\u5236\u89e3\u8c03\u5668\u3001\u5c04\u9891\u6536\u53d1\u5668\u3001\u5929\u7ebf\u7b49\u90e8\u4ef6\u3002\u8fd9\u4e9b\u7ec4\u4ef6\u5171\u540c\u5de5\u4f5c\uff0c\u5b9e\u73b0\u4e86\u6570\u5b57\u4fe1\u53f7\u7684\u4f20\u8f93\u548c\u63a5\u6536\u3002\u6b64\u5916\uff0c\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u8fd8\u53ef\u4ee5\u901a\u8fc7\u8f6f\u4ef6\u7b97\u6cd5\u6765\u4f18\u5316\u901a\u4fe1\u8fc7\u7a0b\uff0c\u63d0\u9ad8\u901a\u4fe1\u6548\u7387\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684\u5de5\u4f5c\u539f\u7406\u6d89\u53ca\u5230\u4fe1\u53f7\u7684\u7f16\u7801\u3001\u8c03\u5236\u3001\u53d1\u5c04\u3001\u63a5\u6536\u548c\u89e3\u8c03\u7b49\u591a\u4e2a\u73af\u8282\uff0c\u901a\u8fc7\u8fd9\u4e9b\u73af\u8282\u7684\u534f\u540c\u5de5\u4f5c\uff0c\u5b9e\u73b0\u4e86\u65e0\u7ebf\u6570\u636e\u7684\u4f20\u8f93\u548c\u901a\u4fe1\u8fde\u63a5\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 \u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u4e2d\u4fe1\u53f7\u7f16\u7801\u7684\u5177\u4f53\u65b9\u6cd5\u548c\u6280\u672f\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u4e2d\u7684\u4fe1\u53f7\u7f16\u7801\u65b9\u6cd5\u548c\u6280\u672f\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>\u4f20\u7edf\u4fe1\u53f7\u7f16\u7801\u65b9\u6cd5<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u8109\u51b2\u7f16\u7801\u8c03\u5236(PCM)<\/strong>\uff1a\u901a\u8fc7\u5c06\u6a21\u62df\u4fe1\u53f7\u5e45\u5ea6\u91cf\u5316\u540e\u7f16\u7801\u6210\u4e8c\u8fdb\u5236\u5f62\u5f0f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9891\u79fb\u952e\u63a7(FSK)<\/strong>\uff1a\u901a\u8fc7\u6539\u53d8\u8f7d\u6ce2\u9891\u7387\u6765\u8868\u793a\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u76f8\u4f4d\u504f\u79fb\u952e\u63a7(PSK)<\/strong>\uff1a\u901a\u8fc7\u6539\u53d8\u8f7d\u6ce2\u7684\u76f8\u4f4d\u6765\u8868\u793a\u4fe1\u606f\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u538b\u7f29\u4fe1\u53f7\u7f16\u7801\u65b9\u6cd5<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u79bb\u6563\u4f59\u5f26\u53d8\u6362(DCT)<\/strong>\uff1a\u901a\u8fc7\u5bf9\u4fe1\u53f7\u8fdb\u884c\u53d8\u6362\uff0c\u5c06\u5197\u4f59\u4fe1\u53f7\u8fdb\u884c\u538b\u7f29\uff0c\u4ece\u800c\u51cf\u5c0f\u4fe1\u53f7\u7684\u4f20\u8f93\u5f00\u9500\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5c0f\u6ce2\u53d8\u6362(Wavelet Transform)<\/strong>\uff1a\u4e5f\u662f\u4e00\u79cd\u5e38\u7528\u7684\u538b\u7f29\u7f16\u7801\u65b9\u6cd5\uff0c\u80fd\u591f\u6709\u6548\u5730\u5904\u7406\u4fe1\u53f7\u7684\u5197\u4f59\u90e8\u5206\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u65b9\u6cd5<\/strong>\uff1a<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u5dee\u5206\u8109\u51b2\u7f16\u7801\u8c03\u5236(DPCM)<\/strong>\uff1a\u5728PCM\u7684\u57fa\u7840\u4e0a\u5f15\u5165\u4e86\u9884\u6d4b\u7f16\u7801\u7684\u601d\u60f3\uff0c\u51cf\u5c11\u4e86\u9700\u8981\u4f20\u8f93\u7684\u4fe1\u606f\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u591a\u9891\u4fe1\u53f7\u7f16\u7801(MFC)<\/strong>\uff1a\u5728\u9891\u57df\u4e0a\u8fdb\u884c\u7f16\u7801\uff0c\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u4f20\u8f93\u6548\u7387\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6b63\u4ea4\u632f\u5e45\u8c03\u5236(QAM)<\/strong>\uff1a\u5728\u76f8\u4f4d\u548c\u5e45\u5ea6\u4e0a\u8fdb\u884c\u7f16\u7801\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u4f20\u8f93\u6548\u7387\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>\u5176\u4ed6\u5e38\u89c1\u7684\u7f16\u7801\u65b9\u6cd5<\/strong>\uff1a<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u5f52\u96f6\u7f16\u7801(RZ)<\/strong>\uff1a\u9ad8\u7535\u5e73\u8868\u793a1.\u4f4e\u7535\u5e73\u8868\u793a0.\u6bcf\u4e2a\u5468\u671f\u7684\u4e2d\u95f4\u4f1a\u5f520.<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u975e\u5f52\u96f6\u7f16\u7801(NRZ)<\/strong>\uff1a\u9ad8\u7535\u5e73\u8868\u793a1.\u4f4e\u7535\u5e73\u8868\u793a0.\u4e0d\u505a\u5f52\u96f6\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u66fc\u5f7b\u65af\u7279\u7f16\u7801<\/strong>\uff1a\u4e2d\u95f4\u7684\u7535\u5e73\u8df3\u53d8\u65e2\u53ef\u4ee5\u8868\u793a\u65f6\u949f\u4fe1\u53f7\uff0c\u53c8\u53ef\u4ee5\u4f5c\u4e3a\u6570\u636e\u4fe1\u53f7\uff0c\u662f\u4e00\u79cd\u81ea\u540c\u6b65\u7684\u7f16\u7801\u65b9\u6848\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5dee\u5206\u66fc\u5f7b\u65af\u7279\u7f16\u7801<\/strong>\uff1a\u7ed3\u5408\u4e86\u66fc\u5f7b\u65af\u7279\u7f16\u7801\u7684\u4f18\u70b9\uff0c\u7528\u4e8e\u4ee5\u592a\u7f51\u7b49\u5e94\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 \u8c03\u5236\u6280\u672f(\u5982OFDM\u3001CDMA)\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u53ca\u5176\u4f18\u7f3a\u70b9\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n<p>\u3000\u3000\u8c03\u5236\u6280\u672f\u5982OFDM(\u6b63\u4ea4\u9891\u5206\u590d\u7528)\u548cCDMA(\u7801\u5206\u591a\u5740)\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u5e76\u4e14\u5404\u81ea\u5177\u6709\u72ec\u7279\u7684\u4f18\u7f3a\u70b9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. OFDM\u6280\u672f<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u3000\u3000\u4f18\u70b9\uff1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u9ad8\u9891\u8c31\u5229\u7528\u7387<\/strong>\uff1aOFDM\u5c06\u9ad8\u901f\u6570\u636e\u6d41\u5206\u6210\u591a\u4e2a\u4f4e\u901f\u5b50\u8f7d\u6ce2\u8fdb\u884c\u4f20\u8f93\uff0c\u6bcf\u4e2a\u5b50\u8f7d\u6ce2\u4e4b\u95f4\u6b63\u4ea4\uff0c\u53ef\u4ee5\u5145\u5206\u5229\u7528\u9891\u8c31\u8d44\u6e90\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u591a\u5f84\u8870\u843d<\/strong>\uff1aOFDM\u901a\u8fc7\u5c06\u6570\u636e\u5206\u6210\u591a\u4e2a\u5b50\u8f7d\u6ce2\uff0c\u5e76\u5728\u9891\u57df\u4e0a\u8fdb\u884c\u6b63\u4ea4\u5206\u5272\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u62b5\u6297\u591a\u5f84\u5e72\u6270\u3002\u8fd9\u4f7f\u5f97OFDM\u5728\u5bbd\u5e26\u65e0\u7ebf\u901a\u4fe1\u4e2d\u5177\u6709\u51fa\u8272\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b\u5f3a<\/strong>\uff1aOFDM\u901a\u8fc7\u5c06\u6570\u636e\u6d41\u5206\u6563\u5230\u591a\u4e2a\u5b50\u8f7d\u6ce2\u4e0a\u8fdb\u884c\u4f20\u8f93\uff0c\u4f7f\u5f97\u5e72\u6270\u53ea\u4f1a\u5f71\u54cd\u5176\u4e2d\u4e00\u90e8\u5206\u5b50\u8f7d\u6ce2\uff0c\u800c\u4e0d\u4f1a\u5bf9\u6574\u4e2a\u4fe1\u53f7\u4ea7\u751f\u8f83\u5927\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7075\u6d3b\u6027\u5f3a<\/strong>\uff1aOFDM\u7cfb\u7edf\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e0d\u540c\u7684\u5b50\u8f7d\u6ce2\u6570\u76ee\u5206\u522b\u7528\u4e8e\u4e0a\u884c\u548c\u4e0b\u884c\u94fe\u8def\u4e2d\u5b9e\u73b0\u4e0d\u540c\u7684\u4f20\u8f93\u901f\u7387\uff0c\u652f\u6301\u975e\u5bf9\u79f0\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u9891\u7387\u9009\u62e9\u6027\u8870\u843d<\/strong>\uff1aOFDM\u80fd\u591f\u6709\u6548\u6291\u5236\u548c\u6d88\u9664\u7531\u4e8e\u4fe1\u9053\u7684\u65f6\u5ef6\u6269\u5c55\u5f15\u8d77\u7684\u9891\u7387\u9009\u62e9\u6027\u8870\u843d\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u3000\u3000\u7f3a\u70b9\uff1a<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u590d\u6742\u5ea6\u9ad8<\/strong>\uff1aOFDM\u6280\u672f\u5728\u5904\u7406\u65f6\u57df\u4e0a\u7684\u4fe1\u53f7\u65f6\u9700\u8981\u8fdb\u884cFFT\u53d8\u6362\uff0c\u8fd9\u4f1a\u5e26\u6765\u4e00\u5b9a\u7684\u590d\u6742\u5ea6\u548c\u5ef6\u8fdf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5cf0\u5747\u529f\u7387\u6bd4(PAPR)\u9ad8<\/strong>\uff1a\u7531\u4e8e\u5b50\u8f7d\u6ce2\u4e4b\u95f4\u5b58\u5728\u76f8\u4e92\u5e72\u6270\uff0c\u5f53\u6240\u6709\u5b50\u8f7d\u6ce2\u76f8\u4f4d\u5b8c\u5168\u76f8\u540c\u7684\u65f6\u5019\uff0c\u4f1a\u9020\u6210\u77ac\u6001\u5cf0\u503c\uff0c\u5bfc\u81f4\u5cf0\u5747\u529f\u7387\u6bd4(PAPR)\u8f83\u9ad8\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u65f6\u57df\u6296\u52a8<\/strong>\uff1aOFDM\u6280\u672f\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u53ef\u80fd\u4f1a\u5f15\u5165\u65f6\u57df\u6296\u52a8\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5f71\u54cd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u30002. CDMA\u6280\u672f<\/h2>\n\n\n\n<p>\u3000\u3000CDMA(\u7801\u5206\u591a\u5740)\u662f\u4e00\u79cd\u5229\u7528\u6269\u9891\u6280\u672f\u5b9e\u73b0\u7684\u591a\u5740\u63a5\u5165\u65b9\u5f0f\uff0c\u5176\u4e3b\u8981\u4f18\u70b9\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4fdd\u5bc6\u6027\u5f3a<\/strong>\uff1aCDMA\u901a\u8fc7\u4f7f\u7528\u4f2a\u968f\u673a\u7801\u5e8f\u5217\u6765\u533a\u5206\u4e0d\u540c\u7684\u7528\u6237\uff0c\u8fd9\u79cd\u7f16\u7801\u65b9\u5f0f\u4f7f\u5f97\u4fe1\u53f7\u96be\u4ee5\u88ab\u622a\u83b7\u548c\u7834\u89e3\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b\u5f3a<\/strong>\uff1aCDMA\u7cfb\u7edf\u53ef\u4ee5\u5728\u540c\u4e00\u9891\u6bb5\u5185\u540c\u65f6\u4f20\u8f93\u591a\u4e2a\u4fe1\u53f7\uff0c\u8fd9\u4e9b\u4fe1\u53f7\u901a\u8fc7\u4e0d\u540c\u7684\u7801\u5e8f\u5217\u8fdb\u884c\u533a\u5206\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u5e72\u6270\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5bb9\u91cf\u5927<\/strong>\uff1aCDMA\u7cfb\u7edf\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u7801\u7247\u6570\u6765\u63d0\u9ad8\u7cfb\u7edf\u5bb9\u91cf\uff0c\u9002\u7528\u4e8e\u9ad8\u5bc6\u5ea6\u7528\u6237\u73af\u5883\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u7136\u800c\uff0cCDMA\u6280\u672f\u4e5f\u5b58\u5728\u4e00\u4e9b\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u529f\u7387\u63a7\u5236\u8981\u6c42\u9ad8<\/strong>\uff1a\u4e3a\u4e86\u4fdd\u8bc1\u901a\u4fe1\u8d28\u91cf\uff0cCDMA\u7cfb\u7edf\u9700\u8981\u7cbe\u786e\u7684\u529f\u7387\u63a7\u5236\u673a\u5236\uff0c\u4ee5\u907f\u514d\u4fe1\u53f7\u8fc7\u5f3a\u6216\u8fc7\u5f31\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5f00\u9500\u5927<\/strong>\uff1aCDMA\u7cfb\u7edf\u7684\u5b9e\u73b0\u9700\u8981\u590d\u6742\u7684\u786c\u4ef6\u548c\u8f6f\u4ef6\u652f\u6301\uff0c\u589e\u52a0\u4e86\u7cfb\u7edf\u7684\u6210\u672c\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003. \u603b\u7ed3<\/h3>\n\n\n\n<p>\u3000\u3000OFDM\u548cCDMA\u6280\u672f\u5404\u6709\u4f18\u7f3a\u70b9\uff0c\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u4e5f\u5404\u6709\u4fa7\u91cd\u3002OFDM\u4ee5\u5176\u9ad8\u9891\u8c31\u5229\u7528\u7387\u3001\u6297\u591a\u5f84\u8870\u843d\u548c\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u7b49\u4f18\u70b9\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5bbd\u5e26\u6570\u5b57\u901a\u4fe1\u4e2d;\u800cCDMA\u5219\u4ee5\u5176\u4fdd\u5bc6\u6027\u5f3a\u548c\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u7684\u7279\u70b9\uff0c\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u5b89\u5168\u6027\u548c\u5927\u5bb9\u91cf\u7684\u901a\u4fe1\u573a\u666f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5929\u7ebf\u8bbe\u8ba1\u5982\u4f55\u63d0\u9ad8\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684\u4f20\u8f93\u6548\u7387\u548c\u8986\u76d6\u8303\u56f4?<\/h2>\n\n\n\n<p>\u3000\u3000\u901a\u8fc7\u5929\u7ebf\u8bbe\u8ba1\u63d0\u9ad8\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684\u4f20\u8f93\u6548\u7387\u548c\u8986\u76d6\u8303\u56f4\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u5165\u624b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4f18\u5316\u5929\u7ebf\u5e03\u5c40\u548c\u7ed3\u6784<\/strong>\uff1a\u5408\u7406\u7684\u5929\u7ebf\u5e03\u5c40\u548c\u7ed3\u6784\u8bbe\u8ba1\u5bf9\u4e8e\u63d0\u5347\u5929\u7ebf\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u4f18\u5316\u5929\u7ebf\u7684\u4f4d\u7f6e\u3001\u65b9\u5411\u548c\u5f62\u72b6\uff0c\u53ef\u4ee5\u51cf\u5c11\u5929\u7ebf\u4e4b\u95f4\u7684\u5e72\u6270\uff0c\u63d0\u9ad8\u4fe1\u53f7\u63a5\u6536\u548c\u53d1\u5c04\u7684\u6548\u7387\u3002\u4f8b\u5982\uff0c\u91c7\u7528\u591a\u5929\u7ebf\u6280\u672f(\u5982MIMO\u6280\u672f)\u53ef\u4ee5\u589e\u52a0\u4fe1\u53f7\u7684\u4f20\u8f93\u8def\u5f84\uff0c\u63d0\u9ad8\u4fe1\u53f7\u5f3a\u5ea6\u548c\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u63d0\u9ad8\u5929\u7ebf\u589e\u76ca\u548c\u6548\u7387<\/strong>\uff1a\u9ad8\u6548\u7684\u5929\u7ebf\u80fd\u591f\u63d0\u9ad8\u4fe1\u53f7\u7684\u4f20\u8f93\u6548\u7387\uff0c\u51cf\u5c11\u80fd\u91cf\u7684\u635f\u5931\uff0c\u4ece\u800c\u6539\u5584\u901a\u4fe1\u8d28\u91cf\u3002\u901a\u8fc7\u63d0\u9ad8\u5b54\u5f84\u6548\u7387\u548c\u5929\u7ebf\u6548\u7387\uff0c\u53ef\u4ee5\u5728\u51cf\u5c11\u7269\u7406\u5c3a\u5bf8\u7684\u540c\u65f6\u589e\u52a0\u8f90\u5c04\u80fd\u529b\uff0c\u5e76\u51cf\u5c11\u80fd\u91cf\u635f\u8017\uff0c\u63d0\u9ad8\u4fe1\u53f7\u7684\u4f20\u8f93\u8d28\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u91c7\u7528\u5148\u8fdb\u7684\u5929\u7ebf\u6280\u672f<\/strong>\uff1a\u91c7\u7528\u591a\u5b54\u5f84\u5929\u7ebf\u6280\u672f\u548c\u591a\u5143\u632f\u5b50\u5929\u7ebf\u6280\u672f\u53ef\u4ee5\u589e\u52a0\u5929\u7ebf\u7684\u65b9\u5411\u6027\u548c\u589e\u76ca\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u53f7\u7684\u4f20\u8f93\u6548\u7387\u548c\u8303\u56f4\u3002\u6b64\u5916\uff0c\u5bbd\u9891\u5316\u8bbe\u8ba1\u53ef\u4ee5\u4f7f\u5929\u7ebf\u5728\u591a\u4e2a\u9891\u6bb5\u5185\u9ad8\u6548\u5de5\u4f5c\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u9891\u8c31\u5229\u7528\u7387\u548c\u901a\u4fe1\u5bb9\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f18\u5316\u5929\u7ebf\u7684\u9694\u79bb\u5ea6\u548c\u7a7f\u900f\u529b<\/strong>\uff1a\u901a\u8fc7\u4f18\u5316\u5929\u7ebf\u5e03\u5c40\u6765\u63d0\u9ad8\u5929\u7ebf\u7684\u9694\u79bb\u5ea6\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u51cf\u5c11\u5e72\u6270\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u53f7\u7684\u7a33\u5b9a\u6027\u548c\u4f20\u8f93\u6548\u7387\u3002\u540c\u65f6\uff0c\u6539\u53d8\u5929\u7ebf\u65b9\u5411\u548c\u589e\u52a0\u4fe1\u53f7\u589e\u5f3a\u6a21\u5757\u4e5f\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u4fe1\u53f7\u7684\u7a7f\u900f\u529b\u548c\u7ed5\u5c04\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u63a7\u5236\u9a7b\u6ce2\u6bd4<\/strong>\uff1a\u901a\u8fc7\u4f18\u5316\u5929\u7ebf\u8bbe\u8ba1\uff0c\u63a7\u5236\u9a7b\u6ce2\u6bd4\u5728\u8f83\u4f4e\u6c34\u5e73(\u4f8b\u59822\u4ee5\u5185)\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u4f20\u8f93\u6548\u7387\uff0c\u8fbe\u523085%\u5de6\u53f3\u751a\u81f3\u66f4\u9ad8\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u667a\u80fd\u5316\u8c03\u6574<\/strong>\uff1a\u5f15\u5165\u667a\u80fd\u7b97\u6cd5\u548c\u4eba\u5de5\u667a\u80fd\u6280\u672f\uff0c\u4f7f\u5929\u7ebf\u80fd\u591f\u5b9e\u73b0\u81ea\u9002\u5e94\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u901a\u4fe1\u73af\u5883\u548c\u5e94\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 \u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684\u6570\u636e\u5904\u7406\u9636\u6bb5\u5305\u62ec\u54ea\u4e9b\u5173\u952e\u6b65\u9aa4<\/h2>\n\n\n\n<p>\u3000\u3000\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u7684\u6570\u636e\u5904\u7406\u9636\u6bb5\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u6570\u636e\u5c01\u88c5<\/strong>\uff1a\u5f53\u9700\u8981\u4f20\u8f93\u6570\u636e\u65f6\uff0c\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u4f1a\u9996\u5148\u5c06\u6570\u636e\u6dfb\u52a0TCP\/IP\u9996\u90e8\u3002TCP\u9996\u90e8\u5305\u542b\u4e86\u6570\u636e\u5305\u7684\u6e90\u7aef\u53e3\u53f7\u3001\u76ee\u7684\u7aef\u53e3\u53f7\u3001\u5e8f\u5217\u53f7\u3001\u786e\u8ba4\u53f7\u7b49\u4fe1\u606f\uff0c\u7528\u4e8e\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u987a\u5e8f\u6027\u3002IP\u9996\u90e8\u5219\u5305\u542b\u4e86\u6570\u636e\u5305\u7684\u6e90IP\u5730\u5740\u3001\u76ee\u7684IP\u5730\u5740\u7b49\u4fe1\u606f\uff0c\u7528\u4e8e\u5b9e\u73b0\u7f51\u7edc\u5c42\u7684\u8def\u7531\u548c\u8f6c\u53d1\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u53d1\u9001<\/strong>\uff1a\u5c01\u88c5\u597d\u7684\u6570\u636e\u5305\u4f1a\u901a\u8fc7\u65e0\u7ebf\u7f51\u7edc\u53d1\u9001\u51fa\u53bb\u3002\u5728\u8fd9\u4e00\u8fc7\u7a0b\u4e2d\uff0c\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u4f1a\u9075\u5faa\u65e0\u7ebf\u901a\u4fe1\u534f\u8bae(\u5982Wi-Fi\u3001\u84dd\u7259\u7b49)\u7684\u89c4\u5b9a\uff0c\u5c06\u6570\u636e\u5305\u53d1\u9001\u5230\u6307\u5b9a\u7684\u76ee\u6807\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u63a5\u6536<\/strong>\uff1a\u63a5\u6536\u65b9(\u5982PC\u7aef)\u6536\u5230\u6570\u636e\u5305\u540e\uff0c\u4f1a\u9996\u5148\u6839\u636eIP\u9996\u90e8\u4e2d\u7684\u4fe1\u606f\u5224\u65ad\u6570\u636e\u5305\u662f\u5426\u5c5e\u4e8e\u672c\u673a\u3002\u5982\u679c\u662f\uff0c\u5219\u4f1a\u5c06\u6570\u636e\u5305\u4f20\u9012\u7ed9\u4f20\u8f93\u5c42\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u4f20\u8f93\u524d\u51c6\u5907<\/strong>\uff1a\u5728\u6570\u636e\u4f20\u8f93\u524d\u51c6\u5907\u9636\u6bb5\uff0c\u6a21\u5757\u4f1a\u5c06\u6570\u636e\u8fdb\u884c\u7f16\u7801\uff0c\u5e76\u5c06\u7f16\u7801\u540e\u7684\u6570\u636e\u51c6\u5907\u597d\u8fdb\u884c\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u4f20\u8f93\u540e\u5904\u7406<\/strong>\uff1a\u5305\u62ec\u5bf9\u63a5\u6536\u5230\u7684\u6570\u636e\u8fdb\u884c\u89e3\u6790\u548c\u5b58\u50a8\uff0c\u4ee5\u53ca\u751f\u6210\u68c0\u6d4b\u62a5\u544a\u7b49\u540e\u7eed\u5904\u7406\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u8fd9\u4e9b\u6b65\u9aa4\u5bf9\u6700\u7ec8\u7684\u6570\u636e\u4f20\u8f93\u8d28\u91cf\u6709\u91cd\u8981\u5f71\u54cd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u6570\u636e\u5c01\u88c5<\/strong>\uff1a\u901a\u8fc7\u6dfb\u52a0TCP\/IP\u9996\u90e8\uff0c\u786e\u4fdd\u4e86\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u987a\u5e8f\u6027\uff0c\u51cf\u5c11\u4e86\u6570\u636e\u4e22\u5931\u548c\u91cd\u4f20\u7684\u53ef\u80fd\u6027\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u6570\u636e\u4f20\u8f93\u7684\u8d28\u91cf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u53d1\u9001<\/strong>\uff1a\u9075\u5faa\u65e0\u7ebf\u901a\u4fe1\u534f\u8bae\u7684\u89c4\u5b9a\uff0c\u786e\u4fdd\u6570\u636e\u80fd\u591f\u51c6\u786e\u65e0\u8bef\u5730\u53d1\u9001\u5230\u76ee\u6807\u5730\u5740\uff0c\u907f\u514d\u4e86\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u9519\u8bef\u548c\u5ef6\u8fdf\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u63a5\u6536<\/strong>\uff1a\u901a\u8fc7IP\u9996\u90e8\u7684\u4fe1\u606f\u5224\u65ad\u6570\u636e\u5305\u662f\u5426\u5c5e\u4e8e\u672c\u673a\uff0c\u5e76\u5c06\u6570\u636e\u5305\u4f20\u9012\u7ed9\u4f20\u8f93\u5c42\u8fdb\u884c\u5904\u7406\uff0c\u786e\u4fdd\u4e86\u6570\u636e\u7684\u6b63\u786e\u63a5\u6536\u548c\u540e\u7eed\u5904\u7406\u7684\u51c6\u786e\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u4f20\u8f93\u524d\u51c6\u5907<\/strong>\uff1a\u901a\u8fc7\u7f16\u7801\u548c\u51c6\u5907\u6570\u636e\uff0c\u786e\u4fdd\u4e86\u6570\u636e\u5728\u4f20\u8f93\u524d\u5df2\u7ecf\u7ecf\u8fc7\u4f18\u5316\u5904\u7406\uff0c\u51cf\u5c11\u4e86\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5e72\u6270\u548c\u9519\u8bef\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u4f20\u8f93\u540e\u5904\u7406<\/strong>\uff1a\u5bf9\u63a5\u6536\u5230\u7684\u6570\u636e\u8fdb\u884c\u89e3\u6790\u548c\u5b58\u50a8\uff0c\u5e76\u751f\u6210\u68c0\u6d4b\u62a5\u544a\uff0c\u786e\u4fdd\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u53ef\u7528\u6027\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u6570\u636e\u4f20\u8f93\u7684\u8d28\u91cf\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 \u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u4e2d\u8f6f\u4ef6\u7b97\u6cd5\u4f18\u5316\u901a\u4fe1\u8fc7\u7a0b\u7684\u6848\u4f8b\u7814\u7a76\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n<p>\u3000\u3000\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\u4e2d\u8f6f\u4ef6\u7b97\u6cd5\u4f18\u5316\u901a\u4fe1\u8fc7\u7a0b\u7684\u6848\u4f8b\u7814\u7a76\u6709\u4ee5\u4e0b\u51e0\u4e2a\uff1a<\/p>\n\n\n\n<ul 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