{"id":100127,"date":"2024-12-27T17:52:16","date_gmt":"2024-12-27T09:52:16","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=100127"},"modified":"2024-12-27T17:52:21","modified_gmt":"2024-12-27T09:52:21","slug":"zjkptzssm","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/100127.html","title":{"rendered":"\u5541\u557e\u6269\u9891\u8c03\u5236\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"\n<p>\u3000\u3000<strong>\u5541\u557e\u6269\u9891\u8c03\u5236(Chirp Spread Spectrum, CSS)<\/strong>\u662f\u4e00\u79cd\u901a\u8fc7\u7ebf\u6027\u8c03\u9891(Linear Frequency Modulation, LFM)\u6280\u672f\u5b9e\u73b0\u7684\u6269\u9891\u8c03\u5236\u65b9\u5f0f\u3002\u5176\u6838\u5fc3\u539f\u7406\u662f\u5229\u7528\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\u7684\u6b63\u5f26\u8109\u51b2\u4fe1\u53f7\u6765\u4f20\u8f93\u4fe1\u606f\uff0c\u8fd9\u79cd\u4fe1\u53f7\u88ab\u79f0\u4e3a\u201c\u5541\u557e\u201d\u4fe1\u53f7\u3002\u5541\u557e\u4fe1\u53f7\u7684\u9891\u7387\u53ef\u4ee5\u5728\u4e00\u4e2a\u65f6\u95f4\u6bb5\u5185\u7ebf\u6027\u589e\u52a0\u6216\u51cf\u5c11\uff0c\u4ece\u800c\u6269\u5c55\u4fe1\u53f7\u7684\u5e26\u5bbd\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u6765\u8bf4\uff0cCSS\u6280\u672f\u901a\u8fc7\u7ebf\u6027\u8c03\u9891\u751f\u6210\u7684\u5541\u557e\u4fe1\u53f7\u5177\u6709\u5929\u7136\u7684\u626b\u9891\u7279\u6027\uff0c\u4f7f\u5f97\u4fe1\u53f7\u5728\u9891\u57df\u4e0a\u88ab\u5c55\u5bbd\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u7a7f\u900f\u80fd\u529b\u3002\u4e0e\u4f20\u7edf\u7684\u76f4\u63a5\u5e8f\u5217\u6269\u9891(DSSS)\u6280\u672f\u76f8\u6bd4\uff0cCSS\u6280\u672f\u4e0d\u9700\u8981\u4f7f\u7528\u4f2a\u968f\u673a\u5e8f\u5217\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u5e94\u7528\u573a\u666f\u4e2d\u66f4\u4e3a\u7b80\u4fbf\u548c\u9ad8\u6548\u3002<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u5e7f\u6cdb\u5e94\u7528\u4e8e\u65e0\u7ebf\u901a\u4fe1\u3001\u96f7\u8fbe\u7cfb\u7edf\u3001\u7269\u8054\u7f51\u7b49\u9886\u57df\u3002\u4f8b\u5982\uff0c\u5728LoRa\u901a\u4fe1\u6280\u672f\u4e2d\uff0cCSS\u88ab\u7528\u4e8e\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u7684\u65e0\u7ebf\u901a\u4fe1\u3002\u6b64\u5916\uff0cCSS\u6280\u672f\u8fd8\u88ab\u5e94\u7528\u4e8e\u9ad8\u7cbe\u5ea6\u65f6\u949f\u540c\u6b65\u7cfb\u7edf\u4e2d\uff0c\u901a\u8fc7\u5541\u557e\u6269\u9891\u8c03\u5236\u4e0e\u89e3\u8c03\uff0c\u7a81\u7834\u4e86\u4fe1\u53f7\u91c7\u6837\u7387\u5bf9\u65e0\u7ebf\u65f6\u949f\u540c\u6b65\u7cbe\u5ea6\u7684\u9650\u5236\u3002<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u901a\u8fc7\u7ebf\u6027\u8c03\u9891\u7684\u65b9\u5f0f\u6269\u5c55\u4fe1\u53f7\u5e26\u5bbd\uff0c\u63d0\u5347\u901a\u4fe1\u6027\u80fd\uff0c\u5e76\u5728\u591a\u4e2a\u9886\u57df\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 \u5541\u557e\u6269\u9891\u8c03\u5236(CSS)\u6280\u672f\u7684\u5de5\u4f5c\u539f\u7406\u7b80\u4ecb<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"726\" height=\"450\" src=\"https:\/\/www.techphant.cn\/wp-content\/uploads\/2024\/12\/css241227a.jpg\" alt=\"\" class=\"wp-image-100128\" srcset=\"https:\/\/www.techphant.cn\/wp-content\/uploads\/2024\/12\/css241227a.jpg 726w, https:\/\/www.techphant.cn\/wp-content\/uploads\/2024\/12\/css241227a-300x186.jpg 300w, https:\/\/www.techphant.cn\/wp-content\/uploads\/2024\/12\/css241227a-150x93.jpg 150w, https:\/\/www.techphant.cn\/wp-content\/uploads\/2024\/12\/css241227a-600x372.jpg 600w\" sizes=\"(max-width: 726px) 100vw, 726px\" \/><\/figure>\n\n\n\n<p>\u3000\u3000\u5541\u557e\u6269\u9891\u8c03\u5236(CSS)\u6280\u672f\u7684\u5177\u4f53\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>\u57fa\u672c\u6982\u5ff5<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5541\u557e\u6269\u9891(Chirp Spread Spectrum, CSS)\u662f\u4e00\u79cd\u57fa\u4e8e\u7ebf\u6027\u9891\u7387\u8c03\u5236(Linear Frequency Modulation, LFM)\u7684\u6269\u9891\u6280\u672f\u3002\u5176\u6838\u5fc3\u5728\u4e8e\u901a\u8fc7\u751f\u6210\u4e00\u7cfb\u5217\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\u7684\u4fe1\u53f7\u6765\u6269\u5c55\u539f\u59cb\u4fe1\u53f7\u7684\u5e26\u5bbd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u5de5\u4f5c\u539f\u7406<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728CSS\u8c03\u5236\u8fc7\u7a0b\u4e2d\uff0cLoRa\u6a21\u5757\u5c06\u6570\u636e\u7f16\u7801\u5230\u4e00\u7cfb\u5217\u8fde\u7eed\u7684\u9891\u7387\u53d8\u5316\u7684\u6b63\u5f26\u6ce2\u4fe1\u53f7\u4e2d\uff0c\u5373\u5541\u557e\u4fe1\u53f7\u3002\u8fd9\u4e9b\u5541\u557e\u4fe1\u53f7\u7684\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u589e\u52a0\uff0c\u5e76\u5728\u6bcf\u4e2a\u5468\u671f\u5185\u5b8c\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u9891\u7387\u626b\u63cf\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u6765\u8bf4\uff0cCSS\u8c03\u5236\u901a\u8fc7\u83b7\u53d6\u6b63\u5f26\u4fe1\u53f7\u5e76\u968f\u65f6\u95f4\u7ebf\u6027\u6539\u53d8\u5176\u9891\u7387\uff0c\u521b\u5efa\u7ebf\u6027\u8c03\u9891\u4fe1\u53f7\u3002\u8fd9\u79cd\u7ebf\u6027\u9891\u7387\u53d8\u5316\u4f7f\u5f97\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u8f7d\u6ce2\u9891\u7387\u968f\u7740\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\uff0c\u4ece\u800c\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u3001\u4f4e\u529f\u8017\u548c\u9ad8\u6297\u5e72\u6270\u6027\u7684\u901a\u4fe1\u7279\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728LoRa\u7269\u7406\u5c42\u8fdb\u884c\u4fe1\u53f7\u4f20\u8f93\u65f6\uff0c\u901a\u8fc7\u5b9a\u4e49\u8c03\u5236\u5e26\u5bbdBW\u548c\u6269\u9891\u56e0\u5b50\uff0c\u5f97\u5230\u4e86\u7801\u7247\u603b\u6570\u3002\u4e0d\u540c\u7b26\u53f7\u662f\u901a\u8fc7\u63a7\u5236\u4e0d\u540cChirp\u4fe1\u53f7\u7684\u521d\u59cb\u626b\u9891\u9891\u7387\u8fdb\u884c\u533a\u5206\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>\u4fe1\u53f7\u751f\u6210<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000CSS\u8c03\u5236\u6280\u672f\u901a\u8fc7\u83b7\u53d6\u6b63\u5f26\u4fe1\u53f7\u5e76\u968f\u65f6\u95f4\u7ebf\u6027\u6539\u53d8\u5176\u9891\u7387\uff0c\u521b\u5efa\u7ebf\u6027\u8c03\u9891\u4fe1\u53f7\u3002\u8fd9\u79cd\u7ebf\u6027\u9891\u7387\u53d8\u5316\u4f7f\u5f97\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u8f7d\u6ce2\u9891\u7387\u968f\u7740\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\uff0c\u4ece\u800c\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u3001\u4f4e\u529f\u8017\u548c\u9ad8\u6297\u5e72\u6270\u6027\u7684\u901a\u4fe1\u7279\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4fe1\u53f7\u7684\u9891\u7387\u4ece\u4e00\u4e2a\u521d\u59cb\u503c\u5f00\u59cb\uff0c\u6309\u7167\u4e00\u5b9a\u7684\u901f\u7387\u7ebf\u6027\u589e\u52a0\u6216\u51cf\u5c11\uff0c\u6700\u7ec8\u8fbe\u5230\u53e6\u4e00\u4e2a\u9891\u7387\u3002\u8fd9\u79cd\u201c\u5541\u557e\u201d\u4fe1\u53f7\u7684\u4ea7\u751f\u662f\u901a\u8fc7\u7ebf\u6027\u9891\u7387\u8c03\u5236(LFM)\u5b9e\u73b0\u7684\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>\u6297\u5e72\u6270\u80fd\u529b<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u901a\u8fc7\u5f15\u5165\u4e00\u79cd\u79f0\u4e3a\u201cchirp\u201d\u7684\u7ebf\u6027\u9891\u7387\u53d8\u5316\u4fe1\u53f7\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u6269\u5c55\uff0c\u4f7f\u5f97LoRa\u4fe1\u53f7\u80fd\u591f\u5728\u8f83\u5bbd\u7684\u9891\u7387\u8303\u56f4\u5185\u4f20\u8f93\u6570\u636e\uff0c\u4ece\u800c\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u548c\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u7531\u4e8eCSS\u8c03\u5236\u4ea7\u751f\u7684\u4fe1\u53f7\u9891\u7387\u8303\u56f4\u8f83\u5e7f\uff0c\u5b83\u53ef\u4ee5\u5728\u591a\u5f84\u4f20\u64ad\u73af\u5883\u4e2d\u6709\u6548\u51cf\u5c11\u5e72\u6270\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30005.&nbsp;<strong>\u5e94\u7528\u573a\u666f<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u4e0d\u4ec5\u5e94\u7528\u4e8eLoRa\u901a\u4fe1\u6280\u672f\uff0c\u8fd8\u5e7f\u6cdb\u5e94\u7528\u4e8e\u96f7\u8fbe\u7cfb\u7edf\u3001\u536b\u661f\u901a\u4fe1\u3001\u519b\u4e8b\u901a\u4fe1\u7b49\u9886\u57df\u3002\u5176\u4f18\u52bf\u5305\u62ec\u964d\u4f4e\u529f\u8017\u3001\u9ad8\u5b9a\u4f4d\u7cbe\u5ea6\u3001\u8fd1\u5b9e\u65f6\u5b9a\u4f4d\u3001\u62b5\u6297\u7a84\u5e26\u5e72\u6270\u548c\u5bb9\u5fcd\u9891\u504f\u3002<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u5229\u7528\u5176\u5168\u90e8\u5206\u914d\u5e26\u5bbd\u5e7f\u64ad\u4fe1\u53f7\uff0c\u5bf9\u4fe1\u9053\u566a\u58f0\u5177\u6709\u9c81\u68d2\u6027\uff0c\u4e14\u5728\u4f4e\u529f\u7387\u4e0b\u80fd\u62b5\u6297\u591a\u5f84\u8870\u843d\uff0c\u9002\u7528\u4e8e\u4f4e\u529f\u8017\u548c\u4f4e\u6570\u636e\u901f\u7387\u573a\u666f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 CSS\u6280\u672f\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n<p>\u3000\u3000CSS(Chirp Spread Spectrum)\u6280\u672f\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>LoRa\u65e0\u7ebf\u901a\u4fe1\u6280\u672f<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000LoRa(Long Range)\u662f\u4e00\u79cd\u4e13\u4e3a\u8fdc\u7a0b\u3001\u4f4e\u529f\u8017\u5e94\u7528\u8bbe\u8ba1\u7684\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\uff0c\u4f7f\u7528\u7ebf\u6027\u8c03\u9891\u6269\u9891(CSS)\u8c03\u5236\u6280\u672f\uff0c\u80fd\u591f\u5728\u4f4e\u5e26\u5bbd\u4e0b\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002LoRaWAN\u534f\u8bae\u4e3aLoRa\u8bbe\u5907\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7f51\u7edc\u5c42\uff0c\u5141\u8bb8\u5b83\u4eec\u5728\u5927\u89c4\u6a21\u7269\u8054\u7f51\u7f51\u7edc\u4e2d\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u5728LoRa\u901a\u4fe1\u4e2d\u626e\u6f14\u7740\u6838\u5fc3\u89d2\u8272\u3002\u4ee5\u4e00\u4e2aLoRaWAN\u7f51\u7edc\u4e3a\u4f8b\uff0c\u7ec8\u7aef\u8bbe\u5907\u91c7\u96c6\u6570\u636e\u540e\uff0c\u901a\u8fc7CSS\u6280\u672f\u5c06\u6570\u636e\u7f16\u7801\u5e76\u901a\u8fc7LoRa\u8c03\u5236\u53d1\u5c04\u5230\u7a7a\u4e2d\u3002\u7f51\u5173\u6355\u83b7\u8fd9\u4e9b\u4fe1\u53f7\u5e76\u89e3\u8c03\uff0c\u7136\u540e\u5c06\u6570\u636e\u8f6c\u53d1\u5230\u7f51\u7edc\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u8ba4\u77e5\u65e0\u7ebf\u7535\u7f51\u7edc\uff08CRN\uff09\u4e2d\u7684\u5408\u4f5c\u9891\u8c31\u611f\u77e5<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u5728\u8ba4\u77e5\u65e0\u7ebf\u7535\u7f51\u7edc(CRN)\u4e2d\u7528\u4e8e\u9891\u8c31\u611f\u77e5\uff0c\u8bc6\u522b\u672a\u5145\u5206\u5229\u7528\u7684\u9891\u8c31\u3002CSS\u6280\u672f\u901a\u8fc7\u5728\u63a5\u6536\u4fe1\u53f7\u5f3a\u5ea6\u4e2d\u5f00\u53d1\u7a7a\u95f4\u591a\u6837\u6027\uff0c\u63d0\u9ad8\u4e86\u8bc6\u522b\u6027\u80fd\u3002\u5728IoT 5G\u65e0\u7ebf\u901a\u4fe1\u4e2d\uff0cCSS\u6280\u672f\u88ab\u7528\u4e8e\u4f18\u5316\u9891\u8c31\u7684\u53ef\u7528\u6027\u548c\u5e26\u5bbd\u5229\u7528\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u975e\u8702\u7a9d\u5e7f\u57df\u7f51\u7edc\uff08LPWAN\uff09<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u5728\u975e\u8702\u7a9d\u5e7f\u57df\u7f51\u7edc(LPWAN)\u4e2d\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\uff0c\u7279\u522b\u662f\u5728\u7269\u8054\u7f51\u89c4\u6a21\u5316\u90e8\u7f72\u4e2d\u3002CSS\u6280\u672f\u5177\u6709\u4f4e\u6210\u672c\u3001\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u548c\u6570\u636e\u901f\u7387\u53ef\u6269\u5c55\u6027\u7b49\u7279\u6027\uff0c\u4f7f\u5176\u5728\u5e02\u653f\u3001\u56ed\u533a\u3001\u6c34\u52a1\u3001\u6d88\u9632\u3001\u7269\u6d41\u7b49\u9886\u57df\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u96f7\u8fbe\u7cfb\u7edf\u4e2d\u7684\u8109\u51b2\u538b\u7f29\u6280\u672f<\/strong>\uff1a<\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u6e90\u81ea\u96f7\u8fbe\u7cfb\u7edf\u4e2d\u7684\u8109\u51b2\u538b\u7f29\u6280\u672f\uff0c\u8fd1\u5e74\u6765\u5728\u901a\u8baf\u9886\u57df\u53d7\u5230\u5173\u6ce8\u3002CSS\u4fe1\u53f7\u662f\u4e00\u79cd\u6269\u9891\u4fe1\u53f7\uff0c\u901a\u8fc7\u7ebf\u6027\u8c03\u9891\u5b9e\u73b0\u9891\u7387\u8c03\u6574\uff0c\u5177\u6709\u6297\u5e72\u6270\u548c\u591a\u8def\u5f84\u6548\u5e94\u80fd\u529b\u5f3a\u7684\u7279\u70b9\u3002CSS\u6280\u672f\u7684\u6838\u5fc3\u662f\u8109\u51b2\u538b\u7f29\u6280\u672f\uff0c\u4f7f\u5f97\u63a5\u6536\u8109\u51b2\u80fd\u91cf\u96c6\u4e2d\uff0c\u6613\u4e8e\u68c0\u6d4b\uff0c\u63d0\u9ad8\u4e86\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 CSS\u6280\u672f\u4e0e\u76f4\u63a5\u5e8f\u5217\u6269\u9891(DSSS)\u6280\u672f\u5728\u6027\u80fd\u4e0a\u7684\u5dee\u5f02?<\/h2>\n\n\n\n<p>\u3000\u3000<strong>CSS\uff08Chirp Spread Spectrum\uff0c\u7ebf\u6027\u8c03\u9891\u6269\u9891\uff09\u6280\u672f<\/strong>\u4e0e<strong>DSSS\uff08Direct Sequence Spread Spectrum\uff0c\u76f4\u63a5\u5e8f\u5217\u6269\u9891\uff09\u6280\u672f<\/strong>\u662f\u4e24\u79cd\u5e7f\u6cdb\u5e94\u7528\u4e8e\u65e0\u7ebf\u901a\u4fe1\u4e2d\u7684\u6269\u9891\u6280\u672f\u3002\u5b83\u4eec\u90fd\u901a\u8fc7\u6269\u5c55\u4fe1\u53f7\u9891\u8c31\u6765\u63d0\u9ad8\u901a\u4fe1\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u4fe1\u53f7\u9c81\u68d2\u6027\uff0c\u4f46\u5728\u5177\u4f53\u6027\u80fd\u548c\u5e94\u7528\u573a\u666f\u4e0a\u5b58\u5728\u663e\u8457\u5dee\u5f02\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4ee5\u4e0b\u4ece<strong>\u6280\u672f\u539f\u7406<\/strong>\u3001<strong>\u6027\u80fd\u5bf9\u6bd4<\/strong>\u548c<strong>\u5e94\u7528\u573a\u666f<\/strong>\u4e09\u65b9\u9762\u5bf9\u4e24\u8005\u8fdb\u884c\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>1. \u6280\u672f\u539f\u7406<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000<strong>CSS\uff08Chirp Spread Spectrum\uff09<\/strong><\/p>\n\n\n\n<p>\u3000\u3000CSS\u6280\u672f\u901a\u8fc7\u751f\u6210\u9891\u7387\u968f\u65f6\u95f4\u7ebf\u6027\u53d8\u5316\u7684\u201c\u5541\u557e\u4fe1\u53f7\u201d(chirp signal)\u6765\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u8c31\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4fe1\u53f7\u4ee5<strong>\u65f6\u95f4\u548c\u9891\u7387\u76f8\u7ed3\u5408\u7684\u65b9\u5f0f\u7f16\u7801<\/strong>\uff0c\u9891\u7387\u4f1a\u968f\u65f6\u95f4\u7ebf\u6027\u589e\u52a0\u6216\u51cf\u5c11(\u4e0a\u884c\u6216\u4e0b\u884c\u5541\u557e)\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4f20\u8f93\u65f6\uff0c\u4fe1\u606f\u901a\u8fc7\u8c03\u5236\u5541\u557e\u4fe1\u53f7\u7684\u9891\u7387\u504f\u79fb\u6216\u76f8\u4f4d\u53d8\u5316\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>DSSS\uff08Direct Sequence Spread Spectrum\uff09<\/strong><\/p>\n\n\n\n<p>\u3000\u3000DSSS\u901a\u8fc7\u5c06\u6570\u636e\u4fe1\u53f7\u4e0e\u4e00\u4e2a\u4f2a\u968f\u673a\u7801\u5e8f\u5217(PN\u7801)\u76f8\u4e58\uff0c\u5c06\u6570\u636e\u6269\u5c55\u5230\u66f4\u5bbd\u7684\u9891\u5e26\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u63a5\u6536\u7aef\u4f7f\u7528\u4e0e\u53d1\u9001\u7aef\u540c\u6b65\u7684PN\u7801\u5bf9\u63a5\u6536\u4fe1\u53f7\u8fdb\u884c\u76f8\u5173\u89e3\u8c03\uff0c\u4ece\u800c\u8fd8\u539f\u539f\u59cb\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u3000\u3000DSSS\u5728\u65f6\u57df\u4e2d\u76f4\u63a5\u6269\u5c55\u4fe1\u53f7\u9891\u8c31\uff0c\u5e76\u4f9d\u8d56\u9ad8\u76f8\u5173\u6027\u7684\u4f2a\u968f\u673a\u7801\u6765\u964d\u4f4e\u5e72\u6270\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000<strong>2. \u6027\u80fd\u5bf9\u6bd4<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>\u6027\u80fd\u6307\u6807<\/strong><\/th><th><strong>CSS\uff08\u7ebf\u6027\u8c03\u9891\u6269\u9891\uff09<\/strong><\/th><th><strong>DSSS\uff08\u76f4\u63a5\u5e8f\u5217\u6269\u9891\uff09<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>\u6297\u5e72\u6270\u80fd\u529b<\/strong><\/td><td>&#8211; \u6297\u591a\u5f84\u5e72\u6270\u80fd\u529b\u5f3a\uff0c\u7279\u522b\u662f\u5728\u590d\u6742\u73af\u5883\u4e0b\u8868\u73b0\u4f18\u5f02\u3002&nbsp;<br>- \u9002\u5408\u4f4e\u4fe1\u566a\u6bd4\u548c\u9ad8\u5e72\u6270\u73af\u5883\u3002<\/td><td>&#8211; \u6297\u5e72\u6270\u80fd\u529b\u826f\u597d\uff0c\u4f46\u5bb9\u6613\u53d7\u7801\u5e8f\u5217\u76f8\u5173\u6027\u6216\u591a\u5f84\u6548\u5e94\u5f71\u54cd\u3002&nbsp;<br>- \u5e72\u6270\u4fe1\u53f7\u9700\u4e0ePN\u7801\u6b63\u4ea4\u624d\u80fd\u88ab\u6709\u6548\u6ee4\u9664\u3002<\/td><\/tr><tr><td><strong>\u529f\u8017<\/strong><\/td><td>&#8211;&nbsp;<strong>\u4f4e\u529f\u8017<\/strong>\uff1aCSS\u901a\u8fc7\u5541\u557e\u4fe1\u53f7\u7684\u7279\u6027\u4f18\u5316\u80fd\u8017\uff0c\u9002\u5408\u4f4e\u529f\u8017\u8bbe\u5907\uff08\u5982LoRa\uff09\u3002<\/td><td>&#8211; \u529f\u8017\u8f83\u9ad8\uff1aDSSS\u9700\u8981\u590d\u6742\u7684\u76f8\u5173\u89e3\u8c03\u548c\u9ad8\u7801\u7387PN\u5e8f\u5217\u751f\u6210\uff0c\u5bfc\u81f4\u80fd\u8017\u589e\u52a0\u3002<\/td><\/tr><tr><td><strong>\u901a\u4fe1\u8ddd\u79bb<\/strong><\/td><td>&#8211;&nbsp;<strong>\u957f\u8ddd\u79bb\u4f20\u8f93<\/strong>\uff1aCSS\u7531\u4e8e\u5176\u5541\u557e\u4fe1\u53f7\u7684\u9ad8\u7075\u654f\u5ea6\uff0c\u9002\u5408\u957f\u8ddd\u79bb\u4f4e\u901f\u901a\u4fe1\u3002<\/td><td>&#8211; 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class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>CSS\u5728\u96f7\u8fbe\u7cfb\u7edf\u4e2d\u7684\u6280\u672f\u4f18\u52bf<\/strong><\/h3>\n\n\n\n<p>\u3000\u3000<strong>\u63d0\u9ad8\u76ee\u6807\u63a2\u6d4b\u80fd\u529b<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6269\u9891\u589e\u76ca<\/strong>\uff1aCSS\u901a\u8fc7\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u8c31\uff0c\u5728\u4f4e\u4fe1\u566a\u6bd4\u73af\u5883\u4e2d\u663e\u8457\u63d0\u5347\u76ee\u6807\u68c0\u6d4b\u6982\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6297\u906e\u6321\u6027<\/strong>\uff1a\u7ebf\u6027\u8c03\u9891\u5541\u557e\u4fe1\u53f7\u7684\u5bbd\u9891\u5e26\u7279\u6027\u4f7f\u5176\u80fd\u7a7f\u900f\u4e00\u5b9a\u7684\u969c\u788d\u7269\uff0c\u4f8b\u5982\u96fe\u973e\u3001\u96e8\u96ea\u6216\u690d\u88ab\uff0c\u9002\u5408\u6076\u52a3\u5929\u6c14\u4e0b\u7684\u76ee\u6807\u63a2\u6d4b\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6297\u5e72\u6270\u6027\u80fd\u5f3a<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9891\u57df\u5206\u5e03\u5e7f<\/strong>\uff1aCSS\u4fe1\u53f7\u5360\u636e\u5bbd\u9891\u5e26\uff0c\u5e72\u6270\u4fe1\u53f7\u8986\u76d6\u6574\u4e2a\u9891\u5e26\u7684\u53ef\u80fd\u6027\u8f83\u4f4e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f2a\u968f\u673a\u6027\u5f3a<\/strong>\uff1a\u5541\u557e\u4fe1\u53f7\u7684\u9891\u7387\u53d8\u5316\u7279\u6027\u96be\u4ee5\u88ab\u5916\u754c\u5e72\u6270\u6216\u6b3a\u9a97\u4fe1\u53f7\u6a21\u62df\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6297\u591a\u5f84\u6548\u5e94<\/strong>\uff1aCSS\u6280\u672f\u80fd\u591f\u6709\u6548\u533a\u5206\u6765\u81ea\u4e0d\u540c\u8def\u5f84\u7684\u56de\u6ce2\u4fe1\u53f7\uff0c\u51cf\u5c11\u591a\u5f84\u5e72\u6270\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u652f\u6301\u957f\u8ddd\u79bb\u63a2\u6d4b<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9ad8\u7075\u654f\u5ea6<\/strong>\uff1aCSS\u6280\u672f\u5141\u8bb8\u901a\u8fc7\u9ad8\u5904\u7406\u589e\u76ca\u6765\u6355\u6349\u8fdc\u8ddd\u79bb\u76ee\u6807\u7684\u5f31\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u529f\u8017<\/strong>\uff1aCSS\u4fe1\u53f7\u7684\u529f\u7387\u8c31\u5bc6\u5ea6\u8f83\u4f4e\uff0c\u53d1\u5c04\u529f\u7387\u9700\u6c42\u5c0f\uff0c\u975e\u5e38\u9002\u5408\u957f\u8ddd\u79bb\u76d1\u6d4b\u4efb\u52a1\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u63d0\u5347\u5206\u8fa8\u7387<\/strong><\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9ad8\u8ddd\u79bb\u5206\u8fa8\u7387<\/strong>\uff1aCSS\u4fe1\u53f7\u7684\u5e26\u5bbd\u4e0e\u8ddd\u79bb\u5206\u8fa8\u7387\u6210\u53cd\u6bd4\uff0c\u4f7f\u7528\u66f4\u5bbd\u7684\u5541\u557e\u4fe1\u53f7\u53ef\u4ee5\u8fbe\u5230\u66f4\u9ad8\u7684\u5206\u8fa8\u7387\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u9ad8\u901f\u5ea6\u5206\u8fa8\u7387<\/strong>\uff1a\u5541\u557e\u4fe1\u53f7\u5bf9\u591a\u666e\u52d2\u9891\u79fb\u654f\u611f\uff0c\u9002\u5408\u9ad8\u901f\u8fd0\u52a8\u76ee\u6807\u7684\u6d4b\u901f\u548c\u5206\u8fa8\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u4f4e\u590d\u6742\u5ea6\u5b9e\u73b0<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u76f8\u8f83\u4e8e\u5176\u4ed6\u590d\u6742\u7684\u6269\u9891\u65b9\u6cd5(\u5982DSSS\u6216\u8df3\u9891\u6269\u9891)\uff0cCSS\u8c03\u5236\u548c\u89e3\u8c03\u7684\u5b9e\u73b0\u76f8\u5bf9\u7b80\u5355\uff0c\u7279\u522b\u662f\u5728\u786c\u4ef6\u8d44\u6e90\u6709\u9650\u7684\u5e94\u7528\u573a\u666f\u4e0b\u66f4\u5177\u4f18\u52bf\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7075\u6d3b\u6027\u9ad8<\/strong><\/p>\n\n\n\n<p>\u3000\u3000CSS\u53ef\u4ee5\u7075\u6d3b\u8c03\u6574\u5541\u557e\u4fe1\u53f7\u7684\u53c2\u6570(\u5982\u9891\u7387\u8303\u56f4\u3001\u8c03\u9891\u659c\u7387)\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u96f7\u8fbe\u7cfb\u7edf\u9700\u6c42\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u53ef\u4e0e\u5176\u4ed6\u8c03\u5236\u6280\u672f(\u5982\u8109\u51b2\u538b\u7f29)\u7ed3\u5408\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u96f7\u8fbe\u6027\u80fd\u3002<\/p>\n\n\n\n<h3 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class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 CSS\u6280\u672f\u5728\u7269\u8054\u7f51\u9886\u57df\u7684\u5e94\u7528\u524d\u666f?<\/h2>\n\n\n\n<p>\u3000\u3000<strong>CSS\uff08Chirp Spread Spectrum\uff0c\u7ebf\u6027\u8c03\u9891\u6269\u9891\uff09\u6280\u672f<\/strong>\u5728\u7269\u8054\u7f51(IoT)\u9886\u57df\u5177\u6709\u5e7f\u9614\u7684\u5e94\u7528\u524d\u666f\u3002\u5b83\u4ee5\u4f4e\u529f\u8017\u3001\u957f\u8ddd\u79bb\u3001\u9ad8\u9c81\u68d2\u6027\u548c\u4f4e\u6210\u672c\u7684\u7279\u70b9\uff0c\u6ee1\u8db3\u4e86\u7269\u8054\u7f51\u901a\u4fe1\u7684\u6838\u5fc3\u9700\u6c42\u3002\u4ee5\u4e0b\u5c06\u4ece<strong>\u5e94\u7528\u573a\u666f<\/strong>\u548c<strong>\u6280\u672f\u4f18\u52bf<\/strong>\u4e24\u65b9\u9762\u8be6\u7ec6\u5206\u6790CSS\u6280\u672f\u5728\u7269\u8054\u7f51\u9886\u57df\u7684\u6f5c\u529b\u3002<\/p>\n\n\n\n<h3 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