{"id":90475,"date":"2024-03-30T10:59:08","date_gmt":"2024-03-30T02:59:08","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=90475"},"modified":"2024-03-30T10:59:16","modified_gmt":"2024-03-30T02:59:16","slug":"mtzjtyl","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/90475.html","title":{"rendered":"MSK\u8c03\u5236\u89e3\u8c03\u539f\u7406"},"content":{"rendered":"\n

\u3000\u3000MSK(\u6700\u5c0f\u9891\u79fb\u952e\u63a7)<\/a>\u8c03\u5236\u89e3\u8c03\u539f\u7406<\/strong>\u4e3b\u8981\u57fa\u4e8e\u76f8\u4f4d\u8fde\u7eed\u76842FSK(\u4e8c\u8fdb\u5236\u9891\u7387\u79fb\u4f4d\u952e\u63a7)\u6280\u672f\uff0c\u901a\u8fc7\u8c03\u6574\u8f7d\u6ce2\u7684\u76f8\u4f4d\u6765\u8868\u793a\u4e8c\u8fdb\u5236\u4fe1\u606f\u3002\u5728\u8c03\u5236\u8fc7\u7a0b\u4e2d\uff0cMSK\u4fe1\u53f7\u4fdd\u6301\u6052\u5b9a\u7684\u5305\u7edc\uff0c\u8fd9\u4f7f\u5f97\u5b83\u5728\u975e\u7ebf\u6027\u7279\u6027\u7684\u4fe1\u9053\u4e2d\u4f20\u8f93\u66f4\u4e3a\u6709\u5229\u3002\u5177\u4f53\u5230\u89e3\u8c03\u8fc7\u7a0b\uff0c\u6709\u4e24\u79cd\u4e3b\u8981\u7684\u65b9\u6cd5\uff1a\u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u548c\u5e73\u65b9\u73af\u76f8\u5e72\u89e3\u8c03\u3002<\/p>\n\n\n\n

\u3000\u3000\u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u662f\u901a\u8fc7\u5bf9\u8f93\u5165\u4fe1\u53f7\u8fdb\u884c\u4e24\u6b21\u91c7\u6837\uff0c\u5e76\u8ba1\u7b97\u8fd9\u4e24\u4e2a\u91c7\u6837\u503c\u4e4b\u95f4\u7684\u5ef6\u8fdf\u5dee\u6765\u8fdb\u884c\u7684\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u6570\u5b57\u9891\u7387\u8c03\u5236\u4fe1\u53f7\uff0c\u5982MSK\u4fe1\u53f7\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u901a\u8fc7\u9274\u9891\u5668\u65b9\u5f0f\u8fdb\u884c\u89e3\u8c03\uff0c\u5176\u7ed3\u6784\u7b80\u5355\uff0c\u5bb9\u6613\u5b9e\u73b0\u3002<\/p>\n\n\n\n

\u3000\u3000\u5e73\u65b9\u73af\u76f8\u5e72\u89e3\u8c03\u5219\u662f\u57fa\u4e8eMSK\u4fe1\u53f70\u7801\u548c1\u7801\u6ce2\u5f62\u6b63\u4ea4\u7684\u7279\u70b9\uff0c\u901a\u8fc7\u5bf9\u6bcf\u4e2a\u7801\u5143\u5468\u671f\u5185\u7684\u91c7\u6837\u503c\uff0c\u9488\u5bf91\u7801\u548c0\u7801\u7684\u8f7d\u6ce2\u9891\u7387\u8fdb\u884c\u8fd0\u7b97\u7684\u4e00\u79cd\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u5229\u7528\u4e86\u8f6f\u4ef6\u65e0\u7ebf\u7535\u7684\u601d\u60f3\uff0c\u901a\u8fc7\u5bf9\u91c7\u6837\u503c\u7684\u5904\u7406\u6765\u5b9e\u73b0\u5bf9MSK\u4fe1\u53f7\u7684\u6570\u5b57\u5316\u89e3\u8c03\u3002<\/p>\n\n\n\n

\u3000\u3000\u6b64\u5916\uff0cMSK\u4fe1\u53f7\u7684\u4ea7\u751f\u539f\u7406\u6d89\u53ca\u5230\u5c06\u4e8c\u8fdb\u5236\u6570\u636e\u8f6c\u6362\u4e3a\u8fde\u7eed\u76f8\u4f4d\u76842FSK\u4fe1\u53f7\uff0c\u5373\u5982\u679c\u4e24\u4e2a\u8f7d\u6ce2\u9891\u7387\u4e4b\u95f4\u7684\u95f4\u9694\u4e3a1\/2.\u5219\u53ef\u4ee5\u6ee1\u8db3MSK\u8c03\u5236\u7684\u57fa\u672c\u6761\u4ef6\u3002\u8fd9\u79cd\u8c03\u5236\u65b9\u5f0f\u4e0d\u4ec5\u5177\u6709\u76f8\u4f4d\u8fde\u7eed\u3001\u9891\u5e26\u5229\u7528\u7387\u9ad8\u7684\u7279\u70b9\uff0c\u800c\u4e14\u7531\u4e8e\u5176\u5df2\u8c03\u4fe1\u53f7\u5305\u7edc\u6052\u5b9a\uff0c\u6709\u5229\u4e8e\u5728\u975e\u7ebf\u6027\u7279\u6027\u7684\u4fe1\u9053\u4e2d\u4f20\u8f93\u3002<\/p>\n\n\n\n

\u3000\u3000MSK\u8c03\u5236\u89e3\u8c03\u539f\u7406\u4e3b\u8981\u4f9d\u8d56\u4e8e\u901a\u8fc7\u8c03\u6574\u8f7d\u6ce2\u76f8\u4f4d\u6765\u8868\u793a\u4e8c\u8fdb\u5236\u4fe1\u606f\u7684\u6280\u672f\uff0c\u540c\u65f6\u91c7\u7528\u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u6216\u5e73\u65b9\u73af\u76f8\u5e72\u89e3\u8c03\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u6709\u6548\u63a5\u6536\u3002<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 MSK\u8c03\u5236\u89e3\u8c03\u539f\u7406\u4e2d\u7684\u76f8\u4f4d\u8fde\u7eed2FSK\u6280\u672f\u662f\u5982\u4f55\u5b9e\u73b0\u7684?<\/h2>\n\n\n\n

\u3000\u3000\u76f8\u4f4d\u8fde\u7eed2FSK\u6280\u672f\u7684\u5b9e\u73b0\u539f\u7406\u4e3b\u8981\u57fa\u4e8e\u4e8c\u8fdb\u5236\u9891\u79fb\u952e\u63a7(2FSK)\u7684\u57fa\u672c\u6982\u5ff5\u3002\u57282FSK\u8c03\u5236\u4e2d\uff0c\u9996\u5148\u9700\u8981\u751f\u6210\u4e24\u4e2a\u4e0d\u540c\u9891\u7387\u7684\u6b63\u5f26\u6ce2\u4fe1\u53f7\u4f5c\u4e3a\u8f7d\u6ce2\u4fe1\u53f7\uff0c\u8fd9\u4e24\u4e2a\u9891\u7387\u5206\u522b\u5bf9\u5e94\u4e8e\u4e8c\u8fdb\u5236\u6570\u5b57\u201c0\u201d\u548c\u201c1\u201d\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5f53\u57fa\u5e26\u4fe1\u53f7\u4e3a\u201c0\u201d\u65f6\uff0c\u4f7f\u7528\u9891\u7387\u4e3af1\u7684\u6b63\u5f26\u6ce2\u4f5c\u4e3a\u8f7d\u6ce2;\u5f53\u57fa\u5e26\u4fe1\u53f7\u4e3a\u201c1\u201d\u65f6\uff0c\u5219\u4f7f\u7528\u9891\u7387\u4e3af2\u7684\u6b63\u5f26\u6ce2\u4f5c\u4e3a\u8f7d\u6ce2\uff0c\u5176\u4e2df1\u548cf2\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u9891\u7387\u70b9\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u76f8\u4f4d\u8fde\u7eed2FSK\u6280\u672f\u4e2d\uff0c\u8f7d\u6ce2\u7684\u9891\u7387\u53d8\u5316\u662f\u77ac\u95f4\u7684\uff0c\u5373\u5728\u6bcf\u4e00\u4e2a\u7801\u5143\u7684\u65f6\u95f4\u95f4\u9694\u5185\uff0c\u8f7d\u6ce2\u9891\u7387\u4ecef1\u8df3\u53d8\u5230f2.\u6216\u8005\u4ecef2\u8df3\u56de\u5230f1.\u4ee5\u8868\u793a\u4e0d\u540c\u7684\u4e8c\u8fdb\u5236\u4fe1\u606f\u3002\u8fd9\u79cd\u6280\u672f\u7684\u7279\u70b9\u662f\uff0c\u8f7d\u6ce2\u9891\u7387\u7684\u53d8\u5316\u4e0d\u662f\u5e73\u6ed1\u8fc7\u6e21\u7684\uff0c\u800c\u662f\u77ac\u95f4\u5b8c\u6210\u7684\u8df3\u53d8\uff0c\u8fd9\u4e0e\u4f20\u7edf\u7684FSK\u6280\u672f\u6709\u6240\u4e0d\u540c\u3002<\/p>\n\n\n\n

\u3000\u3000\u6b64\u5916\uff0c2FSK\u4fe1\u53f7\u53ef\u4ee5\u770b\u4f5c\u662f\u4e24\u4e2a\u4e0d\u540c\u8f7d\u9891\u76842ASK\u4fe1\u53f7\u7684\u53e0\u52a0\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5728\u76f8\u4f4d\u8fde\u7eed2FSK\u6280\u672f\u4e2d\uff0c\u901a\u8fc7\u63a7\u5236\u8f7d\u6ce2\u9891\u7387\u5728\u4e24\u4e2a\u7279\u5b9a\u9891\u7387\u4e4b\u95f4\u7684\u8df3\u53d8\u6765\u4f20\u9012\u6570\u5b57\u4fe1\u606f\uff0c\u800c\u6bcf\u4e2a\u9891\u7387\u70b9\u4e0a\u7684\u4fe1\u53f7\u5f3a\u5ea6(\u632f\u5e45)\u5219\u7528\u4e8e\u8868\u793a\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u4e0d\u540c\u72b6\u6001\u3002<\/p>\n\n\n\n

\u3000\u3000\u76f8\u4f4d\u8fde\u7eed2FSK\u6280\u672f\u901a\u8fc7\u5728\u6bcf\u4e2a\u7801\u5143\u671f\u95f4\u77ac\u95f4\u6539\u53d8\u8f7d\u6ce2\u9891\u7387\u6765\u5b9e\u73b0\u4e8c\u8fdb\u5236\u6570\u5b57\u4fe1\u606f\u7684\u4f20\u8f93\uff0c\u5176\u4e2d\u6bcf\u4e2a\u9891\u7387\u70b9\u5bf9\u5e94\u4e8e\u4e00\u4e2a\u4e8c\u8fdb\u5236\u7b26\u53f7(“0″\u6216”1”)\uff0c\u5e76\u4e14\u901a\u8fc7\u53e0\u52a0\u4e24\u4e2a\u4e0d\u540c\u9891\u7387\u7684\u6b63\u5f26\u6ce2\u6765\u5f62\u6210\u6700\u7ec8\u76842FSK\u4fe1\u53f7\u3002<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u5728MSK\u4fe1\u53f7\u89e3\u8c03\u4e2d\u7684\u5177\u4f53\u5b9e\u73b0\u6b65\u9aa4\u548c\u4f18\u52bf\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

\u3000\u3000\u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u5728MSK\u4fe1\u53f7\u89e3\u8c03\u4e2d\u7684\u5177\u4f53\u5b9e\u73b0\u6b65\u9aa4\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u3000\u63a5\u6536\u4fe1\u53f7\u7684\u9884\u5904\u7406\uff1a\u9996\u5148\uff0c\u5c06\u63a5\u6536\u5230\u7684MSK\u4fe1\u53f7\u5206\u4e3aI\u3001Q\u4e24\u4e2a\u652f\u8def\uff0c\u5206\u522b\u4e0e\u540c\u76f8\u3001\u6b63\u4ea4\u5206\u91cf\u76f8\u4e58\u5e76\u79ef\u5206\u3002\u8fd9\u4e00\u6b65\u9aa4\u662f\u57fa\u4e8eMSK\u4fe1\u53f7\u7684\u7279\u6027\u8fdb\u884c\u7684\uff0c\u65e8\u5728\u5c06\u539f\u59cb\u4fe1\u53f7\u8f6c\u6362\u4e3a\u9002\u5408\u8fdb\u4e00\u6b65\u5904\u7406\u7684\u5f62\u5f0f\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u5ef6\u8fdf\u79ef\u5206\u64cd\u4f5c\uff1a\u5728\u4e0a\u8ff0\u9884\u5904\u7406\u7684\u57fa\u7840\u4e0a\uff0c\u91c7\u7528\u5ef6\u65f6\u79ef\u5206\u7684\u65b9\u6cd5\u5bf9\u4fe1\u53f7\u8fdb\u884c\u5904\u7406\u3002\u8fd9\u79cd\u65b9\u6cd5\u901a\u8fc7\u5f15\u5165\u5ef6\u8fdf\u6765\u589e\u5f3a\u4fe1\u53f7\u7684\u76f8\u5173\u6027\uff0c\u4ece\u800c\u63d0\u9ad8\u89e3\u8c03\u7684\u51c6\u786e\u6027\u548c\u7a33\u5b9a\u6027\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u53ef\u4ee5\u91c7\u7528\u4e00\u6bd4\u7279\u6216pi\/4QPSK\u8c03\u5236\u89e3\u8c03\u539f\u7406\u4e2d\u63d0\u5230\u7684\u5ef6\u8fdf\u65b9\u5f0f\uff0c\u5373\u5229\u7528\u63a5\u6536\u4fe1\u53f7\u548c\u4e24\u4e2a\u5206\u522b\u5ef6\u8fdf\u4e00\u4e2a\u7801\u5143\u5468\u671f\u548c\u03c0\/2\u7684\u4fe1\u53f7\u76f8\u4e58\u5f97\u5230\u7684\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u8f6f\u5224\u51b3\u89e3\u8c03\uff1a\u6700\u540e\uff0c\u6839\u636e\u6761\u4ef6\u6982\u7387\u7684\u76f8\u5173\u7406\u8bba\uff0c\u7ed3\u5408\u5bf9\u6570\u4f3c\u7136\u6bd4\u4fe1\u606f\u7684\u5b9a\u4e49\uff0c\u91c7\u7528\u57fa\u4e8e\u5ef6\u8fdf\u79ef\u5206\u7684\u8f6f\u5224\u51b3\u89e3\u8c03\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u76f8\u6bd4\u4f20\u7edf\u7684\u5e45\u5ea6\u52a0\u6743\u5dee\u5206\u89e3\u8c03\u7b97\u6cd5\uff0c\u5177\u6709\u7b80\u5355\u65b9\u4fbf\u7684\u7279\u70b9\uff0c\u5728Turbo+MSK\u7f16\u7801\u8c03\u5236\u7cfb\u7edf\u4e2d\u8868\u73b0\u51fa\u66f4\u597d\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u5728MSK\u4fe1\u53f7\u89e3\u8c03\u4e2d\u7684\u4f18\u52bf\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/li>\n\n\n\n
  • \u3000\u3000\u63d0\u9ad8\u89e3\u8c03\u7cbe\u5ea6\uff1a\u901a\u8fc7\u5f15\u5165\u5ef6\u8fdf\u5e76\u8fdb\u884c\u79ef\u5206\u64cd\u4f5c\uff0c\u53ef\u4ee5\u589e\u5f3a\u4fe1\u53f7\u7684\u76f8\u5173\u6027\uff0c\u4ece\u800c\u63d0\u9ad8\u89e3\u8c03\u7684\u51c6\u786e\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u7b80\u5316\u7b97\u6cd5\u5b9e\u73b0\uff1a\u4e0e\u4f20\u7edf\u7684\u5e45\u5ea6\u52a0\u6743\u5dee\u5206\u89e3\u8c03\u7b97\u6cd5\u76f8\u6bd4\uff0c\u57fa\u4e8e\u5ef6\u8fdf\u79ef\u5206\u7684\u8f6f\u5224\u51b3\u89e3\u8c03\u65b9\u6cd5\u66f4\u52a0\u7b80\u5355\u65b9\u4fbf\uff0c\u6709\u52a9\u4e8e\u964d\u4f4e\u7cfb\u7edf\u7684\u590d\u6742\u5ea6\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u9002\u5e94\u6027\u5f3a\uff1a\u8be5\u65b9\u6cd5\u9002\u7528\u4e8e\u591a\u79cd\u901a\u4fe1\u7cfb\u7edf\uff0c\u7279\u522b\u662f\u5728Turbo+MSK\u7f16\u7801\u8c03\u5236\u7cfb\u7edf\u4e2d\uff0c\u80fd\u591f\u6709\u6548\u63d0\u5347\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u3000\u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u5728MSK\u4fe1\u53f7\u89e3\u8c03\u4e2d\u7684\u5b9e\u73b0\u6b65\u9aa4\u5305\u62ec\u63a5\u6536\u4fe1\u53f7\u7684\u9884\u5904\u7406\u3001\u5ef6\u8fdf\u79ef\u5206\u64cd\u4f5c\u4ee5\u53ca\u8f6f\u5224\u51b3\u89e3\u8c03<\/strong>\uff0c\u5176\u4f18\u52bf\u5728\u4e8e\u63d0\u9ad8\u4e86\u89e3\u8c03\u7cbe\u5ea6\uff0c\u7b80\u5316\u4e86\u7b97\u6cd5\u5b9e\u73b0\uff0c\u5e76\u4e14\u5177\u6709\u8f83\u5f3a\u7684\u9002\u5e94\u6027\u3002<\/p>\n\n\n\n

    \u3000\u3000\u4e09\u3001 \u5e73\u65b9\u73af\u76f8\u5e72\u89e3\u8c03\u65b9\u6cd5\u5728MSK\u4fe1\u53f7\u6570\u5b57\u5316\u89e3\u8c03\u4e2d\u7684\u5e94\u7528\u539f\u7406\u53ca\u5176\u6548\u7387\u5982\u4f55?<\/h2>\n\n\n\n

    \u3000\u3000\u5e73\u65b9\u73af\u76f8\u5e72\u89e3\u8c03\u65b9\u6cd5\u5728MSK\u4fe1\u53f7\u6570\u5b57\u5316\u89e3\u8c03\u4e2d\u7684\u5e94\u7528\u539f\u7406\u4e3b\u8981\u662f\u901a\u8fc7\u7279\u6b8a\u7684\u9501\u76f8\u73af\u6765\u63d0\u53d6\u76f8\u5e72\u8f7d\u6ce2\u4fe1\u53f7\u3002\u5f53\u4fe1\u53f7\u529f\u7387\u8c31\u4e2d\u4e0d\u542b\u663e\u8457\u7684\u8f7d\u6ce2\u9891\u7387\u5206\u91cf\u65f6\uff0c\u4f20\u7edf\u7684\u89e3\u8c03\u65b9\u6cd5\u53ef\u80fd\u65e0\u6cd5\u6709\u6548\u5de5\u4f5c\uff0c\u8fd9\u65f6\u5c31\u9700\u8981\u4f7f\u7528\u5e73\u65b9\u73af\u6765\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u3002\u5e73\u65b9\u73af\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u9501\u76f8\u73af\uff0c\u5b83\u80fd\u591f\u4ece\u590d\u6742\u7684\u4fe1\u53f7\u4e2d\u63d0\u53d6\u51fa\u6240\u9700\u7684\u8f7d\u6ce2\u4fe1\u606f\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9MSK\u4fe1\u53f7\u7684\u6709\u6548\u89e3\u8c03\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5728MSK\u4fe1\u53f7\u7684\u6570\u5b57\u5316\u89e3\u8c03\u4e2d\uff0c\u5e73\u65b9\u73af\u7684\u5e94\u7528\u6548\u7387\u4f53\u73b0\u5728\u51e0\u4e2a\u65b9\u9762\u3002\u9996\u5148\uff0c\u901a\u8fc7\u57fa\u4e8eFPGA\u7684\u786c\u4ef6\u5e73\u53f0\u548c\u6a21\u5757\u5316\u8bbe\u8ba1\u601d\u8def\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u9501\u76f8\u73af\u7535\u8def\u7684\u6570\u5b57\u5316\u8bbe\u8ba1\uff0c\u8fdb\u800c\u91c7\u7528\u5e73\u65b9\u73af\u63d0\u53d6\u7528\u4e8e\u89e3\u8c03MSK\u4fe1\u53f7\u7684\u76f8\u5e72\u8f7d\u6ce2\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u89e3\u8c03\u7684\u51c6\u786e\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u8fd8\u80fd\u591f\u9002\u5e94\u4e0d\u540c\u7684\u901a\u4fe1\u73af\u5883\u548c\u6761\u4ef6\u3002\u5176\u6b21\uff0c\u6539\u8fdb\u7684\u5e73\u65b9\u73af\u65b9\u6cd5\uff0c\u5982\u7ed3\u5408\u6539\u8fdb\u5750\u6807\u65cb\u8f6c\u6570\u5b57(CORDIC)\u7b97\u6cd5\u7684\u5e73\u65b9\u73af\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u8f7d\u6ce2\u540c\u6b65\u7684\u7cbe\u5ea6\u548c\u6548\u7387\u3002\u8fd9\u79cd\u6539\u8fdb\u65b9\u6cd5\u80fd\u591f\u66f4\u51c6\u786e\u5730\u9501\u5b9a\u8f7d\u6ce2\u9891\u7387\uff0c\u51cf\u5c11\u8bef\u5dee\uff0c\u4ece\u800c\u63d0\u9ad8\u6574\u4e2a\u89e3\u8c03\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5e73\u65b9\u73af\u76f8\u5e72\u89e3\u8c03\u65b9\u6cd5\u5728MSK\u4fe1\u53f7\u6570\u5b57\u5316\u89e3\u8c03\u4e2d\u7684\u5e94\u7528\u539f\u7406\u662f\u901a\u8fc7\u7279\u6b8a\u7684\u9501\u76f8\u73af\u63d0\u53d6\u76f8\u5e72\u8f7d\u6ce2\u4fe1\u53f7\uff0c\u4ee5\u89e3\u51b3\u4fe1\u53f7\u529f\u7387\u8c31\u4e2d\u4e0d\u542b\u663e\u8457\u8f7d\u6ce2\u9891\u7387\u5206\u91cf\u7684\u95ee\u9898\u3002<\/strong>\u5176\u6548\u7387\u4f53\u73b0\u5728\u901a\u8fc7\u57fa\u4e8eFPGA\u7684\u786c\u4ef6\u5e73\u53f0\u548c\u6a21\u5757\u5316\u8bbe\u8ba1\u601d\u8def\uff0c\u4ee5\u53ca\u7ed3\u5408\u6539\u8fdb\u7b97\u6cd5\u5982CORDIC\u7684\u5e73\u65b9\u73af\u65b9\u6cd5\uff0c\u63d0\u9ad8\u4e86\u8f7d\u6ce2\u540c\u6b65\u7684\u7cbe\u5ea6\u548c\u6574\u4e2a\u89e3\u8c03\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n

    \u3000\u3000\u56db\u3001 MSK\u4fe1\u53f7\u5728\u975e\u7ebf\u6027\u7279\u6027\u7684\u4fe1\u9053\u4e2d\u4f20\u8f93\u7684\u673a\u7406\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

    \u3000\u3000MSK\u4fe1\u53f7\u5728\u975e\u7ebf\u6027\u7279\u6027\u7684\u4fe1\u9053\u4e2d\u4f20\u8f93\u7684\u673a\u7406\u4e3b\u8981\u57fa\u4e8e\u5176\u6052\u5305\u7edc\u548c\u8fde\u7eed\u76f8\u4f4d\u7684\u7279\u6027\u3002\u9996\u5148\uff0cMSK(\u6700\u5c0f\u9891\u79fb\u952e\u63a7)\u662f\u4e00\u79cd\u6570\u5b57\u9891\u7387\u8c03\u5236\u65b9\u6cd5\uff0c\u5b83\u901a\u8fc7\u6539\u53d8\u4fe1\u53f7\u7684\u76f8\u4f4d\u6765\u4f20\u8f93\u4fe1\u606f\uff0c\u800c\u4e0d\u9700\u8981\u6539\u53d8\u4fe1\u53f7\u7684\u632f\u5e45\uff0c\u8fd9\u4f7f\u5f97MSK\u4fe1\u53f7\u5177\u6709\u6052\u5b9a\u7684\u5305\u7edc\u7279\u6027\u3002\u8fd9\u79cd\u6052\u5b9a\u7684\u5305\u7edc\u7279\u6027\u6709\u5229\u4e8e\u5728\u975e\u7ebf\u6027\u7279\u6027\u7684\u4fe1\u9053\u4e2d\u4f20\u8f93\uff0c\u56e0\u4e3a\u975e\u7ebf\u6027\u4fe1\u9053\u53ef\u80fd\u4f1a\u5bf9\u4fe1\u53f7\u7684\u5e45\u5ea6\u4ea7\u751f\u5f71\u54cd\uff0c\u4f46\u5bf9\u6052\u5b9a\u5305\u7edc\u7684\u4fe1\u53f7\u5f71\u54cd\u8f83\u5c0f\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5176\u6b21\uff0cMSK\u4fe1\u53f7\u7684\u76f8\u4f4d\u662f\u8fde\u7eed\u53d8\u5316\u7684\uff0c\u8fd9\u610f\u5473\u7740\u76f8\u90bb\u7801\u5143\u4e4b\u95f4\u7684\u76f8\u4f4d\u53d8\u5316\u5e73\u6ed1\uff0c\u6ca1\u6709\u7a81\u8df3\u3002\u8fd9\u79cd\u8fde\u7eed\u76f8\u4f4d\u7684\u7279\u6027\u51cf\u5c11\u4e86\u7801\u95f4\u4e32\u6270(ISI)\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5931\u771f\u3002\u5728\u975e\u7ebf\u6027\u4fe1\u9053\u4e2d\uff0c\u7531\u4e8e\u4fe1\u53f7\u53ef\u80fd\u4f1a\u7ecf\u5386\u975e\u7ebf\u6027\u653e\u5927\uff0c\u5bfc\u81f4\u4fe1\u53f7\u95f4\u7684\u76f8\u4e92\u5e72\u6270\u589e\u52a0\uff0c\u56e0\u6b64\u51cf\u5c11\u5931\u771f\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n\n\n\n

    \u3000\u3000MSK\u4fe1\u53f7\u5728\u975e\u7ebf\u6027\u7279\u6027\u7684\u4fe1\u9053\u4e2d\u4f20\u8f93\u7684\u673a\u7406\u4e3b\u8981\u662f\u5229\u7528\u5176\u6052\u5305\u7edc\u548c\u8fde\u7eed\u76f8\u4f4d\u7684\u7279\u6027\uff0c\u8fd9\u4e9b\u7279\u6027\u6709\u52a9\u4e8e\u51cf\u5c11\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5931\u771f\u548c\u5e72\u6270\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u53f7\u7684\u4f20\u8f93\u8d28\u91cf\u3002<\/strong><\/p>\n\n\n\n

    \u3000\u3000\u4e94\u3001 \u5982\u4f55\u901a\u8fc7\u8f6f\u4ef6\u65e0\u7ebf\u7535\u7684\u601d\u60f3\u6765\u5904\u7406MSK\u4fe1\u53f7\u7684\u91c7\u6837\u503c\uff0c\u4ee5\u5b9e\u73b0\u6709\u6548\u7684\u6570\u5b57\u5316\u89e3\u8c03?<\/h2>\n\n\n\n

    \u3000\u3000\u901a\u8fc7\u8f6f\u4ef6\u65e0\u7ebf\u7535\u7684\u601d\u60f3\u6765\u5904\u7406MSK\u4fe1\u53f7\u7684\u91c7\u6837\u503c\uff0c\u4ee5\u5b9e\u73b0\u6709\u6548\u7684\u6570\u5b57\u5316\u89e3\u8c03\uff0c\u9996\u5148\u9700\u8981\u7406\u89e3\u8f6f\u4ef6\u65e0\u7ebf\u7535\u7684\u57fa\u672c\u6982\u5ff5\u548c\u539f\u7406\u3002\u8f6f\u4ef6\u65e0\u7ebf\u7535\u662f\u4e00\u79cd\u80fd\u591f\u7075\u6d3b\u5730\u5904\u7406\u5404\u79cd\u901a\u4fe1\u4fe1\u53f7\u7684\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u8f6f\u4ef6\u63a7\u5236\u7684\u65b9\u5f0f\u5b9e\u73b0\u5bf9\u4e0d\u540c\u7c7b\u578b\u7684\u8c03\u5236\u89e3\u8c03\u4fe1\u53f7\u7684\u5904\u7406\uff0c\u4ece\u800c\u514b\u670d\u4e86\u4f20\u7edf\u786c\u4ef6\u8bbe\u5907\u5728\u5904\u7406\u590d\u6742\u4fe1\u53f7\u65f6\u7684\u5c40\u9650\u6027\u3002<\/p>\n\n\n\n

    \u3000\u3000\u9488\u5bf9MSK\u4fe1\u53f7\u7684\u6570\u5b57\u5316\u89e3\u8c03\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n

      \n
    • \u3000\u3000\u4fe1\u53f7\u91c7\u6837\uff1a\u9996\u5148\uff0c\u9700\u8981\u5bf9MSK\u4fe1\u53f7\u8fdb\u884c\u9002\u5f53\u7684\u91c7\u6837\u3002\u6839\u636e\u5948\u594e\u65af\u7279\u91c7\u6837\u5b9a\u7406\uff0c\u91c7\u6837\u9891\u7387\u5e94\u81f3\u5c11\u4e3a\u4fe1\u53f7\u6700\u9ad8\u9891\u7387\u7684\u4e24\u500d\uff0c\u4ee5\u786e\u4fdd\u4fe1\u53f7\u4e0d\u5931\u771f\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u9884\u5904\u7406\uff1a\u91c7\u6837\u540e\u7684\u6570\u636e\u53ef\u80fd\u5305\u542b\u566a\u58f0\u6216\u5176\u4ed6\u5e72\u6270\uff0c\u56e0\u6b64\u9700\u8981\u8fdb\u884c\u9884\u5904\u7406\uff0c\u5982\u6ee4\u6ce2\u3001\u53bb\u566a\u7b49\uff0c\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u8c03\u5236\u8bc6\u522b\uff1a\u5728\u8fdb\u884c\u89e3\u8c03\u4e4b\u524d\uff0c\u9700\u8981\u8bc6\u522b\u51faMSK\u4fe1\u53f7\u7684\u8c03\u5236\u7c7b\u578b\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u5206\u6790\u4fe1\u53f7\u7684\u7279\u6027\u548c\u4f7f\u7528\u4e13\u95e8\u7684\u7b97\u6cd5\u6765\u5b9e\u73b0\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u5b9e\u73b0MSK\u89e3\u8c03\u7b97\u6cd5\uff1a\u57fa\u4e8e\u8f6f\u4ef6\u65e0\u7ebf\u7535\u7684\u601d\u60f3\uff0c\u53ef\u4ee5\u91c7\u7528\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u6280\u672f\u6765\u5b9e\u73b0MSK\u4fe1\u53f7\u7684\u89e3\u8c03\u3002\u8fd9\u5305\u62ec\u4f7f\u7528\u6700\u5c0f\u9891\u79fb\u952e\u63a7(Minimun Shift Keying, MSK)\u89e3\u8c03\u7b97\u6cd5\uff0c\u8be5\u7b97\u6cd5\u80fd\u591f\u6709\u6548\u5730\u4ece\u566a\u58f0\u4e2d\u6062\u590d\u51fa\u539f\u59cb\u4fe1\u606f\u3002\u6b64\u5916\uff0c\u8003\u8651\u5230\u8f6f\u4ef6\u65e0\u7ebf\u7535\u7684\u53d1\u5c55\u74f6\u9888\u4e4b\u4e00\u662f\u786c\u4ef6\u6027\u80fd\u548c\u4fe1\u53f7\u5904\u7406\u4e2d\u5de8\u5927\u7684\u8ba1\u7b97\u91cf\u4e4b\u95f4\u7684\u77db\u76fe\uff0c\u5f00\u53d1\u8ba1\u7b97\u91cf\u5c0f\u7684\u4fe1\u53f7\u5904\u7406\u7b97\u6cd5\u5c24\u4e3a\u91cd\u8981\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u52a8\u6001\u52a0\u8f7d\u4e0e\u4f18\u5316\uff1a\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63d0\u9ad8\u89e3\u8c03\u6548\u7387\u548c\u7075\u6d3b\u6027\uff0c\u53ef\u4ee5\u6784\u5efa\u4e00\u4e2a\u4ee5FPGA\u4e3a\u6838\u5fc3\u5904\u7406\u5668\u7684\u53ef\u5b9e\u73b0\u52a8\u6001\u52a0\u8f7d\u7684\u901a\u7528\u786c\u4ef6\u5e73\u53f0\u3002\u8fd9\u6837\u7684\u5e73\u53f0\u4e0d\u4ec5\u80fd\u591f\u5b9e\u73b0MSK\u6570\u5b57\u4e2d\u9891\u8c03\u5236\u4e0e\u89e3\u8c03\u529f\u80fd\uff0c\u8fd8\u80fd\u591f\u6839\u636e\u5b9e\u9645\u9700\u6c42\u52a8\u6001\u52a0\u8f7d\u4e0d\u540c\u7684\u89e3\u8c03\u7b97\u6cd5\uff0c\u4ece\u800c\u4f18\u5316\u6027\u80fd\u3002<\/li>\n<\/ul>\n\n\n\n

      \u3000\u3000\u901a\u8fc7\u8f6f\u4ef6\u65e0\u7ebf\u7535\u7684\u601d\u60f3\u6765\u5904\u7406MSK\u4fe1\u53f7\u7684\u91c7\u6837\u503c\uff0c\u4e3b\u8981\u6d89\u53ca\u5230\u4fe1\u53f7\u7684\u91c7\u6837\u3001\u9884\u5904\u7406\u3001\u8c03\u5236\u8bc6\u522b\u3001\u5b9e\u73b0MSK\u89e3\u8c03\u7b97\u6cd5\u4ee5\u53ca\u52a8\u6001\u52a0\u8f7d\u4e0e\u4f18\u5316\u7b49\u6b65\u9aa4\u3002\u8fd9\u4e9b\u6b65\u9aa4\u5171\u540c\u6784\u6210\u4e86\u4e00\u4e2a\u9ad8\u6548\u3001\u7075\u6d3b\u7684MSK\u4fe1\u53f7\u6570\u5b57\u5316\u89e3\u8c03\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      MSK\u8c03\u5236\u89e3\u8c03\u539f\u7406\u4e3b\u8981\u4f9d\u8d56\u4e8e\u901a\u8fc7\u8c03\u6574\u8f7d\u6ce2\u76f8\u4f4d\u6765\u8868\u793a\u4e8c\u8fdb\u5236\u4fe1\u606f\u7684\u6280\u672f\uff0c\u540c\u65f6\u91c7\u7528\u5ef6\u8fdf\u5dee\u5206\u89e3\u8c03\u6216\u5e73\u65b9\u73af\u76f8\u5e72\u89e3\u8c03\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u6709\u6548\u63a5\u6536\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":[304],"class_list":["post-90475","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-tzjt"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/90475","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=90475"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/90475\/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=90475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=90475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=90475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}