{"id":89478,"date":"2024-03-13T15:37:56","date_gmt":"2024-03-13T07:37:56","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=89478"},"modified":"2024-03-13T15:38:02","modified_gmt":"2024-03-13T07:38:02","slug":"zjxlkphjkdyl","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/89478.html","title":{"rendered":"\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u548c\u89e3\u6269\u7684\u539f\u7406"},"content":{"rendered":"\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891(Direct Sequence Spread Spectrum, DSSS)<\/strong>\u7684\u539f\u7406\u662f\u5229\u7528\u9ad8\u901f\u7387\u7684\u4f2a\u968f\u673a\u7801(PN\u7801)\u5e8f\u5217\u5728\u53d1\u5c04\u7aef\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u8c31\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u53d1\u9001\u7aef\u5c06\u8981\u4f20\u8f93\u7684\u6570\u636e\u4fe1\u606f\u4e0e\u4e00\u4e2a\u4f2a\u968f\u673a\u5e8f\u5217\u8fdb\u884c\u6a212\u8fd0\u7b97\uff0c\u751f\u6210\u590d\u5408\u7801\u5e8f\u5217\uff0c\u7136\u540e\u7528\u8fd9\u4e2a\u590d\u5408\u7801\u5e8f\u5217\u53bb\u63a7\u5236\u8f7d\u6ce2\u7684\u76f8\u4f4d\u6216\u5e45\u5ea6\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9\u4fe1\u53f7\u7684\u6269\u5c55\u3002\u8fd9\u79cd\u6269\u5c55\u4f7f\u5f97\u4fe1\u53f7\u6240\u5360\u6709\u7684\u9891\u5e26\u5bbd\u5ea6\u8fdc\u5927\u4e8e\u6240\u4f20\u4fe1\u606f\u5fc5\u9700\u7684\u6700\u5c0f\u5e26\u5bbd\uff0c\u63d0\u9ad8\u4e86\u901a\u4fe1\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u63a5\u6536\u7aef\uff0c\u4e3a\u4e86\u6062\u590d\u539f\u59cb\u4fe1\u53f7\uff0c\u9700\u8981\u4f7f\u7528\u4e0e\u53d1\u5c04\u7aef\u76f8\u540c\u7684\u4f2a\u968f\u673a\u7801\u5e8f\u5217\u8fdb\u884c\u89e3\u6269\u3002\u63a5\u6536\u7aef\u9996\u5148\u901a\u8fc7\u4f2a\u7801\u540c\u6b65\u6355\u83b7\u7535\u8def\u6765\u6355\u83b7\u53d1\u9001\u6765\u7684\u4f2a\u7801\u7cbe\u786e\u76f8\u4f4d\uff0c\u5e76\u7531\u6b64\u4ea7\u751f\u8ddf\u53d1\u9001\u7aef\u76f8\u540c\u7684\u4f2a\u968f\u673a\u7801\u5e8f\u5217\u3002\u7136\u540e\uff0c\u63a5\u6536\u7aef\u518d\u901a\u8fc7\u4e0e\u53d1\u5c04\u7aef\u91c7\u7528\u76f8\u540c\u7684\u4f2a\u968f\u673a\u5e8f\u5217\u76f8\u4e58\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u89e3\u6269\uff0c\u628a\u5c55\u5bbd\u7684\u6269\u9891\u4fe1\u53f7\u8fd8\u539f\u6210\u539f\u59cb\u7684\u4fe1\u606f\u3002\u8fd9\u6837\uff0c\u5373\u4f7f\u5728\u590d\u6742\u7684\u7535\u78c1\u73af\u5883\u4e2d\uff0c\u4e5f\u80fd\u6709\u6548\u5730\u63d0\u9ad8\u4fe1\u53f7\u7684\u53ef\u9760\u6027\uff0c\u51cf\u5c11\u5e72\u6270\u548c\u7a83\u542c\u7684\u98ce\u9669\u3002<\/p>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u56e0\u5176\u7b80\u5355\u6613\u5b9e\u73b0\u3001\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u7b49\u7279\u70b9\uff0c\u5728\u519b\u4e8b\u901a\u4fe1\u3001\u673a\u5bc6\u5de5\u4e1a\u4ee5\u53ca\u6c11\u7528\u9ad8\u7aef\u4ea7\u54c1\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\u3002\u6b64\u5916\uff0cDSSS\u6280\u672f\u8fd8\u88ab\u5e94\u7528\u4e8eWi-Fi\u7b49\u65e0\u7ebf\u901a\u4fe1\u6807\u51c6\u4e2d\uff0c\u4ee5\u6ee1\u8db3\u9ad8\u901f\u7387\u7684\u6570\u636e\u4f20\u8f93\u9700\u6c42\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 \u76f4\u63a5\u5e8f\u5217\u6269\u9891(DSSS)\u6280\u672f\u5728\u519b\u4e8b\u901a\u4fe1\u4e2d\u7684\u5177\u4f53\u5e94\u7528\u6848\u4f8b?<\/h2>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891(DSSS)\u6280\u672f\u5728\u519b\u4e8b\u901a\u4fe1\u4e2d\u7684\u5177\u4f53\u5e94\u7528\u6848\u4f8b\u5305\u62ec\u519b\u4e8b\u901a\u4fe1\u7535\u53f0\u3001\u6570\u636e\u94fe\u7cfb\u7edf\u548c\u536b\u661f\u5bfc\u822a\u7cfb\u7edf\u3002<\/strong>\u8fd9\u4e9b\u5e94\u7528\u5c55\u793a\u4e86DSSS\u6280\u672f\u5728\u63d0\u9ad8\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u4fdd\u5bc6\u6027\u65b9\u9762\u7684\u4f18\u52bf\u3002\u5728\u519b\u4e8b\u901a\u4fe1\u7535\u53f0\u4e2d\uff0cDSSS\u6280\u672f\u901a\u8fc7\u5176\u5f3a\u5927\u7684\u9690\u853d\u6027\u3001\u7075\u6d3b\u6027\u4ee5\u53ca\u6297\u5e72\u6270\u6027\uff0c\u4e3a\u519b\u4e8b\u901a\u4fe1\u63d0\u4f9b\u4e86\u5b89\u5168\u4fdd\u969c\u3002\u6b64\u5916\uff0cDSSS\u6280\u672f\u7684\u5de5\u4f5c\u4fe1\u566a\u6bd4\u4f4e\u3001\u622a\u83b7\u7387\u4f4e\u3001\u4fdd\u5bc6\u6027\u5f3a\u7b49\u4f18\u70b9\uff0c\u4f7f\u5176\u5728\u519b\u4e8b\u901a\u4fe1\u9886\u57df\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\u3002\u56e0\u6b64\uff0c\u53ef\u4ee5\u603b\u7ed3\u8bf4\uff0cDSSS\u6280\u672f\u5728\u519b\u4e8b\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u4e3b\u8981\u4f53\u73b0\u5728\u63d0\u9ad8\u901a\u4fe1\u7684\u5b89\u5168\u6027\u548c\u53ef\u9760\u6027\u4e0a\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u9ad8\u5ea6\u4fdd\u5bc6\u548c\u6297\u5e72\u6270\u80fd\u529b\u7684\u573a\u5408\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u5982\u4f55\u63d0\u9ad8\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u548c\u5b89\u5168\u6027?<\/h2>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u901a\u8fc7\u5c06\u4fe1\u53f7\u7684\u9891\u5e26\u8fdb\u884c\u6269\u5bbd\uff0c\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u548c\u5b89\u5168\u6027\u3002\u8fd9\u79cd\u6280\u672f\u7684\u6838\u5fc3\u5728\u4e8e\u4f7f\u7528\u4f2a\u968f\u673a\u5e8f\u5217\u6765\u6539\u53d8\u4fe1\u53f7\u7684\u9891\u7387\uff0c\u4f7f\u5f97\u539f\u672c\u53ef\u80fd\u5bf9\u4fe1\u53f7\u9020\u6210\u5e72\u6270\u7684\u7a84\u5e26\u5e72\u6270\u5728\u6269\u5bbd\u540e\u7684\u9891\u5e26\u4e0a\u53d8\u5f97\u4e0d\u90a3\u4e48\u663e\u8457\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u5e72\u6270\u9700\u8981\u66f4\u9ad8\u7684\u529f\u7387\u624d\u80fd\u8fbe\u5230\u76f8\u540c\u7684\u5e72\u6270\u6548\u679c\u3002\u6b64\u5916\uff0c\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u8fd8\u5177\u6709\u826f\u597d\u7684\u4fdd\u5bc6\u6027\uff0c\u8fd9\u4e3b\u8981\u662f\u56e0\u4e3a\u5b83\u80fd\u591f\u6709\u6548\u5730\u62b5\u6297\u591a\u5f84\u6548\u5e94\u548c\u591a\u5740\u5e72\u6270\uff0c\u4ece\u800c\u5728\u4e2a\u4eba\u901a\u4fe1\u7f51\u3001\u65e0\u7ebf\u5c40\u57df\u7f51\u3001\u7b2c\u4e09\u4ee3\u79fb\u52a8\u901a\u4fe1\u3001\u536b\u661f\u901a\u4fe1\u4ee5\u53ca\u519b\u4e8b\u6218\u672f\u901a\u4fe1\u7b49\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u5177\u4f53\u6765\u8bf4\uff0c\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u901a\u8fc7\u91c7\u7528\u53d8\u7801\u76f4\u6269\u7684\u65b9\u5f0f\uff0c\u4f7f\u5f97\u6269\u9891\u5e8f\u5217\u662f\u968f\u673a\u7684\u3001\u4e0d\u65ad\u53d8\u5316\u7684\uff0c\u8fd9\u6837\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u901a\u4fe1\u7684\u6297\u5e72\u6270\u6027\u548c\u5b89\u5168\u6027\uff0c\u8fd8\u53ef\u4ee5\u964d\u4f4e\u901a\u4fe1\u4fe1\u53f7\u88ab\u622a\u83b7\u7684\u6982\u7387\u3002\u8fd9\u79cd\u6280\u672f\u7684\u5e94\u7528\u573a\u666f\u5305\u62ec\u5b89\u5168\u7cfb\u7edf\u7b49\u591a\u79cd\u9886\u57df\uff0c\u5b83\u80fd\u591f\u5b9e\u73b0\u591a\u7528\u6237\u5171\u4eab\u9891\u8c31\u3001\u62b5\u6297\u591a\u5f84\u6548\u5e94\u3001\u63d0\u9ad8\u7cfb\u7edf\u5bb9\u91cf\u548c\u7075\u6d3b\u6027\u7b49\u4f18\u52bf\u3002<\/p>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u901a\u8fc7\u6269\u5bbd\u4fe1\u53f7\u7684\u9891\u5e26\u548c\u4f7f\u7528\u4f2a\u968f\u673a\u5e8f\u5217\u6765\u6539\u53d8\u4fe1\u53f7\u9891\u7387\uff0c\u6709\u6548\u5730\u63d0\u9ad8\u4e86\u4fe1\u53f7\u7684\u6297\u5e72\u6270\u6027\u548c\u5b89\u5168\u6027\uff0c\u540c\u65f6\u4e5f\u589e\u5f3a\u4e86\u901a\u4fe1\u7cfb\u7edf\u7684\u4fdd\u5bc6\u6027\u3002<\/strong>\u8fd9\u4e9b\u7279\u6027\u4f7f\u5f97\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u5728\u591a\u4e2a\u9886\u57df\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u8ba4\u53ef\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 \u76f4\u63a5\u5e8f\u5217\u6269\u9891\u4e0e\u76f4\u63a5\u5e8f\u5217\u76f8\u4f4d\u8c03\u5236(DSPS)\u6709\u4f55\u533a\u522b\u548c\u8054\u7cfb?<\/h2>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891(DSSS)\u548c\u76f4\u63a5\u5e8f\u5217\u76f8\u4f4d\u8c03\u5236(DSPS)\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u6280\u672f\uff0c\u5b83\u4eec\u5728\u901a\u4fe1\u9886\u57df\u6709\u7740\u5404\u81ea\u7684\u5e94\u7528\u548c\u7279\u70b9\u3002<\/p>\n\n\n\n

\u3000\u3000\u9996\u5148\uff0c\u76f4\u63a5\u5e8f\u5217\u6269\u9891(DSSS)\u7684\u57fa\u672c\u539f\u7406\u662f\u4f7f\u7528\u4e00\u4e32\u8fde\u7eed\u7684\u4f2a\u968f\u673a\u7801(PN\u5e8f\u5217)\u6765\u8c03\u5236\u4fe1\u606f\u3002\u8fd9\u4e9b\u4f2a\u968f\u673a\u7801\u88ab\u79f0\u4e3a\u7801\u7247(chips)\uff0c\u6bcf\u4e2a\u7801\u7247\u7684\u6301\u7eed\u65f6\u95f4\u8fdc\u5c0f\u4e8e\u8981\u8c03\u5236\u7684\u4fe1\u606f\u7684\u957f\u5ea6\u3002\u8fd9\u79cd\u6280\u672f\u901a\u8fc7\u5728\u53d1\u7aef\u4f7f\u7528\u5177\u6709\u9ad8\u7801\u7387\u7684\u6269\u9891\u7801\u5e8f\u5217\u53bb\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u8c31\uff0c\u5728\u6536\u7aef\u5219\u4f7f\u7528\u76f8\u540c\u7684\u6269\u9891\u7801\u5e8f\u5217\u8fdb\u884c\u89e3\u6269\uff0c\u4ee5\u6062\u590d\u539f\u59cb\u4fe1\u606f\u3002DSSS\u7684\u4e00\u4e2a\u53d8\u4f53\u662f\u57fa\u4e8em\u5e8f\u5217\u5468\u671f\u7b49\u4e8e\u4fe1\u606f\u6bd4\u7279\u4f4d\u5bbd\u6574\u6570\u500d\u60c5\u51b5\u4e0b\u7684\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u4fe1\u53f7\u2014\u2014\u8c03\u5236m\u5e8f\u5217\u7684\u4fe1\u53f7\u8c03\u5236\u4e0e\u89e3\u8c03\u65b9\u6cd5(m-DSSS)\uff0c\u8fd9\u79cd\u65b9\u6cd5\u65e8\u5728\u63d0\u9ad8\u9891\u8c31\u5229\u7528\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u76f4\u63a5\u5e8f\u5217\u76f8\u4f4d\u8c03\u5236(DSPS)\u6d89\u53ca\u5230\u5c06\u4fe1\u606f\u4fe1\u53f7\u7684\u76f8\u4f4d\u53d8\u5316\u4f5c\u4e3a\u8c03\u5236\u624b\u6bb5\uff0c\u800c\u4e0d\u662f\u50cfDSSS\u90a3\u6837\u4f7f\u7528\u4f2a\u968f\u673a\u7801\u5e8f\u5217\u6765\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u8c31\u3002\u8fd9\u79cd\u5dee\u5f02\u610f\u5473\u7740DSPS\u66f4\u4fa7\u91cd\u4e8e\u4fe1\u53f7\u7684\u76f8\u4f4d\u53d8\u5316\u6765\u4f20\u8f93\u4fe1\u606f\uff0c\u800c\u4e0d\u662f\u9891\u7387\u7684\u53d8\u5316\u3002<\/p>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891(DSSS)\u4e0e\u76f4\u63a5\u5e8f\u5217\u76f8\u4f4d\u8c03\u5236(DSPS)\u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5b83\u4eec\u7684\u8c03\u5236\u673a\u5236\u4e0d\u540c\u3002DSSS\u901a\u8fc7\u4f7f\u7528\u4f2a\u968f\u673a\u7801\u5e8f\u5217\u6765\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u8c31\uff0c\u800cDSPS\u5219\u53ef\u80fd\u4fa7\u91cd\u4e8e\u5229\u7528\u4fe1\u53f7\u7684\u76f8\u4f4d\u53d8\u5316\u6765\u4f20\u8f93\u4fe1\u606f\u3002\u4e24\u8005\u4e4b\u95f4\u7684\u8054\u7cfb\u5728\u4e8e\u5b83\u4eec\u90fd\u662f\u76f4\u63a5\u5e8f\u5217\u6280\u672f\u7684\u5e94\u7528\uff0c\u90fd\u65e8\u5728\u63d0\u9ad8\u901a\u4fe1\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u5c3d\u7ba1\u5177\u4f53\u7684\u5b9e\u73b0\u7ec6\u8282\u548c\u5e94\u7528\u573a\u666f\u53ef\u80fd\u6709\u6240\u4e0d\u540c\uff0c\u4f46\u5b83\u4eec\u90fd\u662f\u73b0\u4ee3\u901a\u4fe1\u6280\u672f\u4e2d\u91cd\u8981\u7684\u7ec4\u6210\u90e8\u5206\u3002<\/p>\n\n\n\n

\u3000\u3000\u56db\u3001 \u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u5728Wi-Fi\u6807\u51c6\u4e2d\u662f\u5982\u4f55\u5b9e\u73b0\u9ad8\u901f\u7387\u6570\u636e\u4f20\u8f93\u7684?<\/h2>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f(DSSS)\u5728Wi-Fi\u6807\u51c6\u4e2d\u5b9e\u73b0\u9ad8\u901f\u7387\u6570\u636e\u4f20\u8f93\u7684\u65b9\u5f0f\u4e3b\u8981\u4f9d\u8d56\u4e8e\u5176\u72ec\u7279\u7684\u4fe1\u53f7\u5904\u7406\u548c\u8c03\u5236\u7f16\u7801\u673a\u5236\u3002\u9996\u5148\uff0cDSSS\u901a\u8fc7\u5c06\u5c04\u9891\u8f7d\u6ce2\u4e0e\u4f2a\u566a\u58f0PN\u6570\u5b57\u4fe1\u53f7\u6709\u6548\u5730\u76f8\u4e58\u6765\u6267\u884c\u6570\u636e\u5904\u7406\u3002\u8fd9\u4e00\u8fc7\u7a0b\u9996\u5148\u6d89\u53ca\u5c06PN\u7801\u8c03\u5236\u5230\u4fe1\u606f\u4fe1\u53f7\u4e0a\uff0c\u7136\u540e\u4f7f\u7528\u4e00\u4e2a\u53cc\u91cd\u5e73\u8861\u6df7\u9891\u5668\u5c06\u5c04\u9891\u8f7d\u6ce2\u4e0e\u8c03\u5236\u540e\u7684\u4fe1\u53f7\u76f8\u7ed3\u5408\u3002\u8fd9\u79cd\u8c03\u5236\u65b9\u5f0f\u5141\u8bb8DSSS\u5728\u8f83\u5bbd\u7684\u9891\u5e26\u4e0a\u4f20\u9001\u4fe1\u53f7\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u6570\u636e\u4f20\u8f93\u7684\u901f\u5ea6\u548c\u6548\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u6b64\u5916\uff0cDSSS\u91c7\u7528\u768411 chip barker\u7f16\u7801\u65b9\u5f0f\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86\u5176\u6297\u5e72\u6270\u80fd\u529b\u3002\u8fd9\u79cd\u7f16\u7801\u65b9\u5f0f\u7684\u7279\u70b9\u662f\uff0c\u53ea\u898111\u4f4d\u4e2d\u76842\u4f4d\u6b63\u786e\u5c31\u80fd\u8bc6\u522b\u539f\u6765\u7684\u6570\u636e\uff0c\u8fd9\u6709\u52a9\u4e8e\u9632\u6b62\u5e72\u6270\uff0c\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002IEEE 802.11-1997\u534f\u8bae\u5c31\u662f\u91c7\u7528DSSS\u6280\u672f\u7684\u4e00\u4e2a\u4f8b\u5b50\uff0c\u5b83\u4f7f\u75282.4-2.485 GHz\u9891\u6bb5\uff0c\u652f\u6301\u7684\u4f20\u8f93\u5e26\u5bbd\u4e3a1Mbps\u548c2Mbps\u3002\u8fd9\u8868\u660eDSSS\u6280\u672f\u80fd\u591f\u6709\u6548\u5730\u652f\u6301Wi-Fi\u6807\u51c6\u4e2d\u7684\u9ad8\u901f\u7387\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u5728Wi-Fi\u6807\u51c6\u4e2d\u5b9e\u73b0\u9ad8\u901f\u7387\u6570\u636e\u4f20\u8f93\u7684\u5173\u952e\u5728\u4e8e\u5176\u9ad8\u6548\u7684\u4fe1\u53f7\u5904\u7406\u548c\u8c03\u5236\u7f16\u7801\u673a\u5236\uff0c\u4ee5\u53ca\u5f3a\u5927\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002\u8fd9\u4e9b\u7279\u6027\u4f7f\u5f97DSSS\u6210\u4e3a\u652f\u6301\u9ad8\u901fWi-Fi\u901a\u4fe1\u7684\u7406\u60f3\u9009\u62e9\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e94\u3001 \u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u9762\u4e34\u7684\u4e3b\u8981\u6311\u6218\u548c\u89e3\u51b3\u65b9\u6848\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f(DSSS)\u9762\u4e34\u7684\u4e3b\u8981\u6311\u6218\u5305\u62ec\uff1a1. \u5bf9\u975e\u900f\u660e\u7269\u4f53\u7684\u900f\u8fc7\u6027\u6781\u5dee\uff0c\u4f20\u8f93\u8ddd\u79bb\u53d7\u9650;2. \u6613\u53d7\u65e5\u5149\u3001\u8367\u5149\u706f\u7b49\u5e72\u6270;3. \u534a\u53cc\u5de5\u901a\u4fe1\u3002\u6b64\u5916\uff0c\u5f53\u63a5\u6536\u673a\u5904\u4e8e\u4fe1\u566a\u6bd4\u8f83\u4f4e\u7684\u73af\u5883\u65f6\uff0c\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u4fe1\u53f7\u7684\u540c\u6b65\u5177\u6709\u5f88\u5927\u7684\u6311\u6218\u6027\u3002\u8fd8\u6709\u7814\u7a76\u6307\u51fa\uff0c\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e0b\u6700\u4f73\u8c03\u5236\u89e3\u8c03\u65b9\u6848\u7684\u9009\u62e9\u3001\u4eba\u7c7b\u6d3b\u52a8\u5bf9IBC\u6027\u80fd\u7684\u5f71\u54cd\u3001\u53ef\u53d8\u4fe1\u566a\u6bd4(SNR)\u4ee5\u53ca\u4f20\u8f93\u7684\u5f71\u54cd\u4e0d\u540c\u8c03\u5236\u548c\u89e3\u8c03\u65b9\u6cd5\u7684\u8ddd\u79bb\u53d8\u5316\u4e5f\u662f\u9700\u8981\u89e3\u51b3\u7684\u6280\u672f\u95ee\u9898\u3002<\/p>\n\n\n\n

\u3000\u3000\u9488\u5bf9\u8fd9\u4e9b\u6311\u6218\uff0c\u89e3\u51b3\u65b9\u6848\u5305\u62ec\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u3000\u5229\u7528FPGA\u5b9e\u73b0\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\uff0c\u4ee5\u589e\u5927\u4f20\u8f93\u901f\u7387\u5e76\u63d0\u9ad8\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u63d0\u51fa\u88ab\u52a8\u5f0f\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f(Passive DSSS)\uff0c\u8d4b\u80fd\u7269\u8054\u7f51\u88ab\u52a8\u5f0f\u65e0\u7ebf\u901a\u4fe1\u63a5\u6536\u7aef\u5bf9\u6269\u9891\u4fe1\u53f7\u7684\u63a5\u6536\u89e3\u8c03\u80fd\u529b\uff0c\u663e\u8457\u63d0\u5347\u7269\u8054\u7f51\u4f4e\u529f\u8017\u8bbe\u5907\u4e0b\u884c\u94fe\u8def\u7684\u6027\u80fd\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u5728\u4f4e\u538b\u7535\u529b\u7ebf\u4fe1\u9053\u566a\u58f0\u73af\u5883\u4e0b\u6539\u8fdb\u6355\u83b7\u7b97\u6cd5\uff0c\u4ee5\u63d0\u9ad8\u63a5\u6536\u673a\u5728\u4f4e\u4fe1\u566a\u6bd4\u73af\u5883\u4e0b\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u7814\u7a76\u76f4\u6269\u7cfb\u7edf\u4e2d\u7684\u7a84\u5e26\u5e72\u6270\u6291\u5236\u6280\u672f\uff0c\u901a\u8fc7\u6269\u9891\u7801\u4e0e\u5e8f\u5217\u76f8\u4e58\u76f4\u63a5\u6269\u5c55\u4fe1\u53f7\u9891\u8c31\uff0c\u5176\u6269\u9891\u7801\u957f\u5ea6\u51b3\u5b9a\u4e86\u76f4\u6269\u7cfb\u7edf\u7684\u5e72\u6270\u5bb9\u9650\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u3000\u76f4\u63a5\u5e8f\u5217\u6269\u9891\u6280\u672f\u9762\u4e34\u7684\u6311\u6218\u4e3b\u8981\u96c6\u4e2d\u5728\u4fe1\u53f7\u540c\u6b65\u3001\u4f20\u8f93\u8ddd\u79bb\u3001\u6297\u5e72\u6270\u80fd\u529b\u7b49\u65b9\u9762\uff0c\u800c\u89e3\u51b3\u65b9\u6848\u5219\u6d89\u53ca\u786c\u4ef6\u4f18\u5316\u3001\u7b97\u6cd5\u6539\u8fdb\u548c\u7cfb\u7edf\u8bbe\u8ba1\u7684\u591a\u4e2a\u65b9\u9762\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u76f4\u63a5\u5e8f\u5217\u6269\u9891(Direct Sequence Spread Spectrum, DSSS)\u7684\u539f\u7406\u662f\u5229\u7528\u9ad8\u901f\u7387\u7684\u4f2a\u968f\u673a\u7801(PN\u7801)\u5e8f\u5217\u5728\u53d1\u5c04\u7aef\u6269\u5c55\u4fe1\u53f7\u7684\u9891\u8c31\u3002\u4f7f\u5f97\u4fe1\u53f7\u6240\u5360\u6709\u7684\u9891\u5e26\u5bbd\u5ea6\u8fdc\u5927\u4e8e\u6240\u4f20\u4fe1\u606f\u5fc5\u9700\u7684\u6700\u5c0f\u5e26\u5bbd\u3002<\/p>\n","protected":false},"author":1,"featured_media":65264,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[217],"class_list":["post-89478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-kptx"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/89478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=89478"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/89478\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/65264"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=89478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=89478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=89478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}