{"id":478421,"date":"2023-08-09T09:32:37","date_gmt":"2023-08-09T09:32:37","guid":{"rendered":""},"modified":"2023-09-05T11:16:45","modified_gmt":"2023-09-05T11:16:45","slug":"phase-shift-keying","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/phase-shift-keying\/","title":{"rendered":"\u76f8\u79fb\u952e\u63a7"},"content":{"rendered":"<p>\u76f8\u79fb\u952e\u63a7 (PSK) \u662f\u4e00\u79cd\u7528\u4e8e\u7535\u4fe1\u548c\u6570\u636e\u901a\u4fe1\u7cfb\u7edf\u7684\u6570\u5b57\u8c03\u5236\u6280\u672f\uff0c\u7528\u4e8e\u901a\u8fc7\u6a21\u62df\u901a\u4fe1\u4fe1\u9053\u4f20\u8f93\u6570\u5b57\u6570\u636e\u3002\u5b83\u662f\u5e45\u79fb\u952e\u63a7 (ASK) \u7684\u4e00\u79cd\u5f62\u5f0f\uff0c\u5176\u4e2d\u8f7d\u6ce2\u4fe1\u53f7\u7684\u76f8\u4f4d\u7ecf\u8fc7\u8c03\u5236\u4ee5\u8868\u793a\u6570\u5b57\u4fe1\u606f\u3002<\/p>\n<h2>\u76f8\u79fb\u952e\u63a7\u7684\u8d77\u6e90\u53ca\u5176\u9996\u6b21\u63d0\u53ca\u7684\u5386\u53f2<\/h2>\n<p>\u76f8\u79fb\u952e\u63a7\u8d77\u6e90\u4e8e\u65e0\u7ebf\u7535\u62a5\u7684\u65e9\u671f\uff0c\u5f53\u65f6\u7535\u62a5\u64cd\u4f5c\u5458\u4f7f\u7528\u83ab\u5c14\u65af\u7535\u7801\u8fdb\u884c\u957f\u8ddd\u79bb\u901a\u4fe1\u3002 Ralph Hartley \u5728 1928 \u5e74\u9898\u4e3a\u201c\u4fe1\u606f\u4f20\u8f93\u201d\u7684\u8bba\u6587\u4e2d\u9996\u6b21\u63d0\u5230\u4e86\u4f7f\u7528\u8f7d\u6ce2\u4fe1\u53f7\u7684\u4e0d\u540c\u76f8\u4f4d\u6765\u8868\u793a\u4fe1\u606f\u7684\u6982\u5ff5\u3002\u4ed6\u8ba8\u8bba\u4e86\u76f8\u4f4d\u8c03\u5236\u4f5c\u4e3a\u901a\u8fc7\u901a\u4fe1\u4fe1\u9053\u6709\u6548\u4f20\u8f93\u6570\u636e\u7684\u624b\u6bb5\u7684\u60f3\u6cd5\u3002<\/p>\n<h2>\u6709\u5173\u76f8\u79fb\u952e\u63a7\u7684\u8be6\u7ec6\u4fe1\u606f<\/h2>\n<p>\u76f8\u79fb\u952e\u63a7\u662f\u4e00\u79cd\u8c03\u5236\u6280\u672f\uff0c\u901a\u8fc7\u6539\u53d8\u8f7d\u6ce2\u4fe1\u53f7\u7684\u76f8\u4f4d\u5c06\u6570\u5b57\u6570\u636e\u7f16\u7801\u5230\u6a21\u62df\u8f7d\u6ce2\u4e0a\u3002\u901a\u5e38\u4ee5\u6bd4\u7279\u5f62\u5f0f\u7684\u6570\u5b57\u6570\u636e\u88ab\u6620\u5c04\u5230\u8f7d\u6ce2\u4fe1\u53f7\u7684\u7279\u5b9a\u76f8\u4f4d\u89d2\u3002\u8fd9\u4e9b\u89d2\u5ea6\u4e4b\u95f4\u7684\u76f8\u53d8\u8868\u793a\u6b63\u5728\u4f20\u8f93\u7684\u4e8c\u8fdb\u5236\u4fe1\u606f\u3002<\/p>\n<p>\u5728 PSK \u4e2d\uff0c\u8f7d\u6ce2\u4fe1\u53f7\u7684\u5e45\u5ea6\u4fdd\u6301\u6052\u5b9a\uff0c\u800c\u76f8\u4f4d\u6839\u636e\u8c03\u5236\u6570\u636e\u800c\u53d8\u5316\u3002\u6700\u5e38\u89c1\u7684 PSK \u65b9\u6848\u5305\u62ec\u4e8c\u8fdb\u5236\u76f8\u79fb\u952e\u63a7 (BPSK)\u3001\u6b63\u4ea4\u76f8\u79fb\u952e\u63a7 (QPSK) \u548c\u591a\u8fdb\u5236\u7b26\u53f7\u76f8\u79fb\u952e\u63a7 (M-PSK)\u3002<\/p>\n<h2>\u76f8\u79fb\u952e\u63a7\u7684\u5185\u90e8\u7ed3\u6784\u53ca\u5176\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>PSK\u8c03\u5236\u5668\u7684\u5185\u90e8\u7ed3\u6784\u7531\u6570\u5b57\u6570\u636e\u6e90\u3001\u8f7d\u6ce2\u4fe1\u53f7\u53d1\u751f\u5668\u548c\u76f8\u4f4d\u8c03\u5236\u5668\u7ec4\u6210\u3002 PSK\u8c03\u5236\u8fc7\u7a0b\u5305\u62ec\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u6570\u5b57\u6570\u636e\u6e90<\/strong>\uff1a\u8981\u4f20\u8f93\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u662f\u4ece\u6570\u636e\u6e90\u751f\u6210\u7684\uff0c\u4f8b\u5982\u8ba1\u7b97\u673a\u6216\u4efb\u4f55\u6570\u5b57\u8bbe\u5907\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8f7d\u6ce2\u4fe1\u53f7\u751f\u6210<\/strong>\uff1a\u901a\u5e38\u4f7f\u7528\u632f\u8361\u5668\u7535\u8def\u751f\u6210\u7a33\u5b9a\u7684\u8f7d\u6ce2\u4fe1\u53f7\u3002\u8be5\u8f7d\u6ce2\u4fe1\u53f7\u7684\u9891\u7387\u53d6\u51b3\u4e8e\u901a\u4fe1\u7cfb\u7edf\u7684\u8981\u6c42\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u76f8\u4f4d\u8c03\u5236\u5668<\/strong>\uff1a\u6570\u5b57\u6570\u636e\u7528\u4e8e\u63a7\u5236\u76f8\u4f4d\u8c03\u5236\u5668\uff0c\u76f8\u4f4d\u8c03\u5236\u5668\u6839\u636e\u6570\u636e\u7684\u4e8c\u8fdb\u5236\u503c\u6539\u53d8\u8f7d\u6ce2\u4fe1\u53f7\u7684\u76f8\u4f4d\u3002\u4f8b\u5982\uff0c\u5728BPSK\u4e2d\uff0c\u201c0\u201d\u6bd4\u7279\u53ef\u4ee5\u5bf9\u5e94\u4e8e0\u5ea6\u7684\u76f8\u79fb\uff0c\u5e76\u4e14\u201c1\u201d\u6bd4\u7279\u53ef\u4ee5\u5bf9\u5e94\u4e8e180\u5ea6\u7684\u76f8\u79fb\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4f20\u64ad<\/strong>\uff1a\u8c03\u5236\u540e\u7684\u8f7d\u6ce2\u4fe1\u53f7\u7136\u540e\u901a\u8fc7\u901a\u4fe1\u901a\u9053\u53d1\u9001\uff0c\u5e76\u4f20\u64ad\u5230\u63a5\u6536\u5668\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5728\u63a5\u6536\u5668\u7aef\uff0c\u89e3\u8c03\u5668\u901a\u8fc7\u5206\u6790\u63a5\u6536\u4fe1\u53f7\u4e2d\u7684\u76f8\u4f4d\u8f6c\u6362\u6765\u6062\u590d\u539f\u59cb\u6570\u636e\u3002<\/p>\n<h2>\u76f8\u79fb\u952e\u63a7\u7684\u4e3b\u8981\u7279\u6027\u5206\u6790<\/h2>\n<p>\u76f8\u79fb\u952e\u63a7\u5177\u6709\u591a\u79cd\u4f18\u52bf\uff0c\u4f7f\u5176\u6210\u4e3a\u5404\u79cd\u901a\u4fe1\u7cfb\u7edf\u4e2d\u6d41\u884c\u7684\u8c03\u5236\u6280\u672f\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u5e26\u5bbd\u6548\u7387<\/strong>\uff1aPSK \u6bd4\u5e45\u5ea6\u8c03\u5236\u6280\u672f\u5177\u6709\u66f4\u9ad8\u7684\u5e26\u5bbd\u6548\u7387\uff0c\u56e0\u4e3a\u5b83\u4f7f\u7528\u76f8\u4f4d\u53d8\u5316\u800c\u4e0d\u662f\u5e45\u5ea6\u53d8\u5316\u6765\u8868\u793a\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6297\u566a\u58f0\u9c81\u68d2\u6027<\/strong>\uff1aPSK \u5bf9\u4e8e\u566a\u58f0\u548c\u5e72\u6270\u800c\u8a00\u76f8\u5bf9\u7a33\u5065\uff0c\u5c24\u5176\u662f\u4e0e\u5e45\u5ea6\u8c03\u5236\u65b9\u6848\u76f8\u6bd4\u3002\u8fd9\u79cd\u9c81\u68d2\u6027\u4f7f\u5176\u9002\u5408\u901a\u8fc7\u5608\u6742\u7684\u4fe1\u9053\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9891\u8c31\u6548\u7387<\/strong>\uff1a\u4f7f\u7528 QPSK \u6216 8-PSK \u7b49\u9ad8\u9636 PSK \u65b9\u6848\uff0c\u6bcf\u4e2a\u7b26\u53f7\u53ef\u4ee5\u4f20\u8f93\u591a\u4e2a\u6bd4\u7279\uff0c\u4ece\u800c\u5728\u4e0d\u589e\u52a0\u5e26\u5bbd\u7684\u60c5\u51b5\u4e0b\u63d0\u9ad8\u6570\u636e\u901f\u7387\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7b80\u5355\u89e3\u8c03<\/strong>\uff1aPSK \u7684\u89e3\u8c03\u8fc7\u7a0b\u76f8\u5bf9\u7b80\u5355\uff0c\u6613\u4e8e\u5b9e\u73b0\uff0c\u9002\u5408\u5404\u79cd\u5e94\u7528\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u76f8\u79fb\u952e\u63a7\u7684\u7c7b\u578b<\/h2>\n<p>\u76f8\u79fb\u952e\u63a7\u6709\u591a\u79cd\u7c7b\u578b\uff0c\u6bcf\u79cd\u7c7b\u578b\u90fd\u6709\u4e0d\u540c\u7684\u4f18\u70b9\u548c\u4f18\u7f3a\u70b9\u3002\u6700\u5e38\u89c1\u7684 PSK \u7c7b\u578b\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u4e8c\u8fdb\u5236\u76f8\u79fb\u952e\u63a7 (BPSK)<\/strong>\uff1aBPSK \u4f7f\u7528\u4e24\u4e2a\u76f8\u4f4d\u6765\u8868\u793a\u6570\u5b57\u6570\u636e\uff0c\u901a\u5e38\u4e3a 0 \u5ea6\u548c 180 \u5ea6\u3002\u5b83\u662f\u6700\u7b80\u5355\u7684 PSK \u5f62\u5f0f\uff0c\u76f8\u5bf9\u7a33\u5065\uff0c\u4f46\u5e26\u5bbd\u6548\u7387\u8f83\u4f4e\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6b63\u4ea4\u76f8\u79fb\u952e\u63a7 (QPSK)<\/strong>\uff1aQPSK \u4f7f\u7528\u56db\u4e2a\u76f8\u4f4d\uff08\u901a\u5e38\u95f4\u9694 90 \u5ea6\uff09\u6765\u8868\u793a\u6bcf\u4e2a\u7b26\u53f7\u4e24\u4f4d\u6570\u636e\u3002\u5b83\u63d0\u4f9b\u6bd4 BPSK \u66f4\u597d\u7684\u5e26\u5bbd\u6548\u7387\u3002<\/p>\n<\/li>\n<li>\n<p><strong>8-\u76f8\u79fb\u952e\u63a7<\/strong>\uff1a8-PSK \u4f7f\u7528\u516b\u4e2a\u4e0d\u540c\u7684\u76f8\u4f4d\uff0c\u5141\u8bb8\u6bcf\u4e2a\u7b26\u53f7\u4f20\u8f93\u4e09\u4e2a\u6bd4\u7279\u3002\u5b83\u63d0\u4f9b\u66f4\u9ad8\u7684\u9891\u8c31\u6548\u7387\uff0c\u4f46\u5728\u566a\u58f0\u4fe1\u9053\u4e2d\u66f4\u5bb9\u6613\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n<\/li>\n<li>\n<p><strong>16-\u76f8\u79fb\u952e\u63a7<\/strong>\uff1a16-PSK \u91c7\u7528 16 \u4e2a\u4e0d\u540c\u7684\u76f8\u4f4d\uff0c\u4f7f\u5176\u80fd\u591f\u6bcf\u4e2a\u7b26\u53f7\u4f20\u8f93 4 \u4f4d\u3002\u7136\u800c\uff0c\u5b83\u53d8\u5f97\u66f4\u5bb9\u6613\u53d7\u5230\u566a\u58f0\u7684\u5f71\u54cd\uff0c\u5e76\u4e14\u9700\u8981\u66f4\u9ad8\u7684\u4fe1\u566a\u6bd4\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u76f8\u79fb\u952e\u63a7\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u76f8\u79fb\u952e\u63a7\u5728\u5404\u4e2a\u9886\u57df\u90fd\u6709\u5e94\u7528\uff0c\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u65e0\u7ebf\u901a\u4fe1<\/strong>\uff1aPSK \u56e0\u5176\u9891\u8c31\u6548\u7387\u548c\u6297\u566a\u58f0\u9c81\u68d2\u6027\u800c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\uff0c\u4f8b\u5982 Wi-Fi\u3001\u84dd\u7259\u548c\u536b\u661f\u901a\u4fe1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6570\u5b57\u5e7f\u64ad<\/strong>\uff1aPSK \u8c03\u5236\u5728\u6570\u5b57\u5e7f\u64ad\u7cfb\u7edf\u4e2d\u7528\u4e8e\u4f20\u8f93\u7535\u89c6\u548c\u65e0\u7ebf\u7535\u4fe1\u53f7\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6570\u636e\u5b58\u50a8<\/strong>\uff1aPSK \u5df2\u5e94\u7528\u4e8e\u6570\u636e\u5b58\u50a8\u6280\u672f\uff0c\u5305\u62ec\u5149\u5b58\u50a8\u548c\u78c1\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5c3d\u7ba1\u6709\u5176\u4f18\u70b9\uff0cPSK \u8c03\u5236\u5728\u9ad8\u566a\u58f0\u73af\u5883\u548c\u591a\u5f84\u8870\u843d\u6761\u4ef6\u4e0b\u4ecd\u9762\u4e34\u6311\u6218\u3002\u8fd9\u4e9b\u95ee\u9898\u7684\u4e00\u4e9b\u89e3\u51b3\u65b9\u6848\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u7ea0\u9519\u7801<\/strong>\uff1a\u4f7f\u7528 Reed-Solomon \u6216\u5377\u79ef\u7801\u7b49\u7ea0\u9519\u7801\u53ef\u4ee5\u589e\u5f3a\u7cfb\u7edf\u7684\u5bb9\u9519\u80fd\u529b\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u591a\u6837\u6027\u6280\u672f<\/strong>\uff1a\u5b9e\u65bd\u5206\u96c6\u6280\u672f\uff0c\u4f8b\u5982\u7a7a\u95f4\u5206\u96c6\u6216\u65f6\u95f4\u5206\u96c6\uff0c\u53ef\u4ee5\u51cf\u8f7b\u8870\u843d\u7684\u5f71\u54cd\u5e76\u63d0\u9ad8\u6574\u4f53\u6027\u80fd\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u4e3b\u8981\u7279\u70b9\u53ca\u540c\u7c7b\u4ea7\u54c1\u6bd4\u8f83<\/h2>\n<table>\n<thead>\n<tr>\n<th><strong>\u7279\u5f81<\/strong><\/th>\n<th><strong>\u76f8\u79fb\u952e\u63a7 (PSK)<\/strong><\/th>\n<th><strong>\u9891\u79fb\u952e\u63a7 (FSK)<\/strong><\/th>\n<th><strong>\u5e45\u79fb\u952e\u63a7 (ASK)<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u57fa\u672c\u539f\u5219<\/strong><\/td>\n<td>\u8c03\u5236\u8f7d\u6ce2\u76f8\u4f4d<\/td>\n<td>\u8c03\u5236\u8f7d\u6ce2\u9891\u7387<\/td>\n<td>\u8c03\u5236\u8f7d\u6ce2\u5e45\u5ea6<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6570\u636e\u8868\u793a<\/strong><\/td>\n<td>\u76f8\u53d8\u4ee3\u8868\u6570\u636e<\/td>\n<td>\u9891\u79fb\u4ee3\u8868\u6570\u636e<\/td>\n<td>\u5e45\u5ea6\u53d8\u5316\u4ee3\u8868\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5e26\u5bbd\u6548\u7387<\/strong><\/td>\n<td>\u9ad8\u7684<\/td>\n<td>\u7f13\u548c<\/td>\n<td>\u4f4e\u7684<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6297\u566a\u58f0\u9c81\u68d2\u6027<\/strong><\/td>\n<td>\u597d\u7684<\/td>\n<td>\u7f13\u548c<\/td>\n<td>\u8d2b\u7a77\u7684<\/td>\n<\/tr>\n<tr>\n<td><strong>\u590d\u6742<\/strong><\/td>\n<td>\u4f4e\u7684<\/td>\n<td>\u4f4e\u5230\u4e2d\u7b49<\/td>\n<td>\u4f4e\u7684<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5e94\u7528\u5b9e\u4f8b<\/strong><\/td>\n<td>\u65e0\u7ebf\u901a\u4fe1\u3001\u6570\u5b57\u5e7f\u64ad<\/td>\n<td>RFID\u7cfb\u7edf\u3001\u65e0\u7ebf\u4f20\u611f\u5668<\/td>\n<td>\u901a\u8fc7\u65e0\u7ebf\u7535\u9891\u9053\u8fdb\u884c\u8bed\u97f3\u901a\u4fe1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u4e0e\u76f8\u79fb\u952e\u63a7\u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f<\/h2>\n<p>\u76f8\u79fb\u952e\u63a7\u7684\u672a\u6765\u5728\u4e8e\u63d0\u9ad8\u5176\u5728\u9ad8\u566a\u58f0\u73af\u5883\u4e2d\u7684\u6027\u80fd\u5e76\u514b\u670d\u591a\u5f84\u8870\u843d\u7684\u6311\u6218\u3002\u7814\u7a76\u4eba\u5458\u548c\u5de5\u7a0b\u5e08\u6b63\u5728\u4e0d\u65ad\u63a2\u7d22\u5148\u8fdb\u7684\u7ea0\u9519\u6280\u672f\u3001\u81ea\u9002\u5e94\u8c03\u5236\u65b9\u6848\u548c\u667a\u80fd\u5929\u7ebf\u7cfb\u7edf\uff0c\u4ee5\u589e\u5f3a PSK \u901a\u4fe1\u3002<\/p>\n<p>\u968f\u7740\u6280\u672f\u7684\u8fdb\u6b65\uff0c\u9ad8\u9636PSK\u65b9\u6848\u53ef\u80fd\u4f1a\u5728\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u573a\u666f\u4e2d\u627e\u5230\u66f4\u591a\u5e94\u7528\uff0c\u4f8b\u598264-PSK\u6216\u66f4\u9ad8\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u9891\u8c31\u6548\u7387\u548c\u6570\u636e\u901f\u7387\u3002<\/p>\n<h2>\u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5c06\u5176\u4e0e\u76f8\u79fb\u952e\u63a7\u5173\u8054<\/h2>\n<p>\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5728\u5229\u7528\u76f8\u79fb\u952e\u63a7\u7684\u6570\u636e\u901a\u4fe1\u7cfb\u7edf\u4e2d\u53d1\u6325\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5b83\u4eec\u5145\u5f53\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4e2d\u4ecb\uff0c\u8f6c\u53d1\u6570\u636e\u8bf7\u6c42\u548c\u54cd\u5e94\uff0c\u540c\u65f6\u7ef4\u62a4\u9690\u79c1\u548c\u5b89\u5168\u3002\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u589e\u5f3a\u9690\u79c1<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5bf9\u5916\u90e8\u670d\u52a1\u5668\u9690\u85cf\u5ba2\u6237\u7aef\u7684 IP \u5730\u5740\uff0c\u4ece\u800c\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u63d0\u4f9b\u989d\u5916\u7684\u9690\u79c1\u5c42\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u63d0\u9ad8\u5b89\u5168\u6027<\/strong>\uff1a\u4ee3\u7406\u53ef\u4ee5\u5145\u5f53\u9632\u706b\u5899\uff0c\u8fc7\u6ee4\u6076\u610f\u5185\u5bb9\u5e76\u4fdd\u62a4\u5185\u90e8\u7f51\u7edc\u514d\u53d7\u5916\u90e8\u5a01\u80c1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8d1f\u8f7d\u5747\u8861<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5728\u591a\u4e2a\u670d\u52a1\u5668\u4e4b\u95f4\u5206\u914d\u6d41\u91cf\uff0c\u4f18\u5316\u6570\u636e\u4f20\u8f93\u5e76\u63d0\u9ad8\u6574\u4f53\u7cfb\u7edf\u6027\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u89c4\u907f\u9650\u5236<\/strong>\uff1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u7528\u4e8e\u7ed5\u8fc7\u5730\u7406\u9650\u5236\u6216\u5ba1\u67e5\u5236\u5ea6\uff0c\u5141\u8bb8\u7528\u6237\u8bbf\u95ee\u6765\u81ea\u4e0d\u540c\u5730\u533a\u7684\u5185\u5bb9\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u76f8\u5173\u94fe\u63a5<\/h2>\n<p>\u6709\u5173\u76f8\u79fb\u952e\u63a7\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n<ol>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Phase-shift_keying\" target=\"_new\" rel=\"noopener nofollow\">\u7ef4\u57fa\u767e\u79d1 \u2013 \u76f8\u79fb\u952e\u63a7<\/a><\/li>\n<li><a href=\"https:\/\/www.allaboutcircuits.com\/technical-articles\/phase-shift-keying-psk-modulation-robust-data-transmission-method\/\" target=\"_new\" rel=\"noopener nofollow\">\u5173\u4e8e\u7535\u8def\u2014\u2014\u76f8\u79fb\u952e\u63a7<\/a><\/li>\n<li><a href=\"https:\/\/www.rfwireless-world.com\/Terminology\/Types-of-PSK-modulation.html\" target=\"_new\" rel=\"noopener nofollow\">RF \u65e0\u7ebf\u4e16\u754c \u2013 PSK \u7c7b\u578b<\/a><\/li>\n<\/ol>\n<p>\u603b\u4e4b\uff0c\u76f8\u79fb\u952e\u63a7\u662f\u4e00\u79cd\u91cd\u8981\u7684\u8c03\u5236\u6280\u672f\uff0c\u7528\u4e8e\u5404\u79cd\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u4ee5\u5b9e\u73b0\u9ad8\u6548\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u3002\u5b83\u80fd\u591f\u901a\u8fc7\u8f7d\u6ce2\u4fe1\u53f7\u7684\u76f8\u4f4d\u53d8\u5316\u6765\u8868\u793a\u6570\u5b57\u6570\u636e\uff0c\u8fd9\u4f7f\u5176\u5728\u65e0\u7ebf\u548c\u6709\u7ebf\u901a\u4fe1\u573a\u666f\u4e2d\u90fd\u5f88\u6709\u4ef7\u503c\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u7814\u7a76\u548c\u8fdb\u6b65\uff0cPSK \u7684\u672a\u6765\u770b\u8d77\u6765\u5145\u6ee1\u5e0c\u671b\uff0c\u53ef\u4ee5\u63d0\u4f9b\u66f4\u9ad8\u7684\u6570\u636e\u901f\u7387\u548c\u6539\u8fdb\u7684\u6027\u80fd\u3002\u5f53\u4e0e\u4ee3\u7406\u670d\u52a1\u5668\u7ed3\u5408\u4f7f\u7528\u65f6\uff0cPSK \u901a\u4fe1\u53ef\u4ee5\u53d7\u76ca\u4e8e\u589e\u5f3a\u7684\u9690\u79c1\u6027\u3001\u5b89\u5168\u6027\u548c\u8d1f\u8f7d\u5e73\u8861\uff0c\u4f7f\u5176\u6210\u4e3a\u73b0\u4ee3\u6570\u636e\u901a\u4fe1\u7f51\u7edc\u4e2d\u7684\u5f3a\u5927\u7ec4\u5408\u3002<\/p>","protected":false},"featured_media":478422,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478421","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Phase-shift keying: A Comprehensive Guide<\/mark>","faq_items":[{"question":"What is Phase-shift keying (PSK) modulation?","answer":"<p>Phase-shift keying (PSK) is a digital modulation technique used in telecommunications and data communication systems to transmit digital data over analog communication channels. It involves varying the phase of the carrier signal to represent the digital information.<\/p>"},{"question":"How did Phase-shift keying originate?","answer":"<p>The concept of using different phases of the carrier signal to represent information was first mentioned by Ralph Hartley in his 1928 paper titled \"Transmission of Information.\"<\/p>"},{"question":"How does Phase-shift keying work?","answer":"<p>PSK encodes digital data onto an analog carrier wave by changing the phase of the carrier signal according to the modulated data. The phase transitions between specific angles represent the binary information being transmitted.<\/p>"},{"question":"What are the advantages of Phase-shift keying?","answer":"<ul><li>Bandwidth Efficiency: PSK is more bandwidth-efficient than amplitude modulation techniques.<\/li><li>Robustness to Noise: PSK is relatively robust against noise and interference.<\/li><li>Spectral Efficiency: With higher-order PSK schemes, multiple bits can be transmitted per symbol, increasing data rate without increasing bandwidth.<\/li><li>Simple Demodulation: The demodulation process in PSK is straightforward.<\/li><\/ul>"},{"question":"What are the types of Phase-shift keying?","answer":"<p>The common PSK types include Binary Phase-shift Keying (BPSK), Quadrature Phase-shift Keying (QPSK), 8-PSK, and 16-PSK.<\/p>"},{"question":"Where is Phase-shift keying used?","answer":"<p>PSK finds applications in wireless communication (Wi-Fi, Bluetooth), digital broadcasting, and data storage technologies.<\/p>"},{"question":"What challenges does Phase-shift keying face?","answer":"<p>PSK modulation faces challenges in high-noise environments and multipath fading conditions, which can lead to transmission errors.<\/p>"},{"question":"How can proxy servers enhance Phase-shift keying communication?","answer":"<p>Proxy servers can enhance PSK communication by providing additional privacy, security, and load balancing features for data transmission.<\/p>"},{"question":"What is the future of Phase-shift keying?","answer":"<p>The future of PSK lies in improving its performance in noisy environments and overcoming fading challenges. Researchers are exploring advanced error correction techniques and adaptive modulation schemes for enhanced communication.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/478421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/478421\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/478422"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=478421"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}