{"id":76,"date":"2026-03-01T16:29:55","date_gmt":"2026-03-01T08:29:55","guid":{"rendered":"https:\/\/hpu.gv.uy\/?p=76"},"modified":"2026-03-01T17:00:59","modified_gmt":"2026-03-01T09:00:59","slug":"gps%e6%b5%8b%e9%87%8f%e5%8e%9f%e7%90%86%e5%8f%8a%e5%85%b6%e5%ba%94%e7%94%a8-p25-26%e5%85%a8%e7%90%83%e5%ae%9a%e4%bd%8d%e7%b3%bb%e7%bb%9f%e7%9a%84%e7%bb%84%e6%88%90%e5%8f%8a%e4%bf%a1%e5%8f%b7%e7%bb%93","status":"publish","type":"post","link":"https:\/\/hpu.gv.uy\/?p=76","title":{"rendered":"GPS\u6d4b\u91cf\u539f\u7406\u53ca\u5176\u5e94\u7528 p25 26\u5168\u7403\u5b9a\u4f4d\u7cfb\u7edf\u7684\u7ec4\u6210\u53ca\u4fe1\u53f7\u7ed3\u6784\uff08\u5341\uff09"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u76ee\u5f55<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"#1-gps\u65f6\u95f4\u4e0eutc\u65f6\u95f4\u7684\u5dee\u5f02\u53ca\u8f6c\u6362\u53c2\u6570\">1. GPS\u65f6\u95f4\u4e0eUTC\u65f6\u95f4\u7684\u5dee\u5f02\u53ca\u8f6c\u6362\u53c2\u6570<\/a><\/li>\n\n\n\n<li><a href=\"#2-\u7535\u79bb\u5c42\u5ef6\u8fdf\u6539\u6b63\u53c2\u6570\">2. \u7535\u79bb\u5c42\u5ef6\u8fdf\u6539\u6b63\u53c2\u6570<\/a><\/li>\n\n\n\n<li><a href=\"#3-\u536b\u661f\u4fe1\u53f7\u8c03\u5236\u539f\u7406\u6982\u8bba\">3. \u536b\u661f\u4fe1\u53f7\u8c03\u5236\u539f\u7406\u6982\u8bba<\/a><\/li>\n\n\n\n<li><a href=\"#4-\u5bfc\u822a\u7535\u6587\u4e0e\u6d4b\u8ddd\u7801\u7684\u6a212\u76f8\u52a0\">4. \u5bfc\u822a\u7535\u6587\u4e0e\u6d4b\u8ddd\u7801\u7684\u6a212\u76f8\u52a0<\/a><\/li>\n\n\n\n<li><a href=\"#5-\u8f7d\u6ce2\u8c03\u5236\u65b9\u6cd5\u8c03\u76f8bpsk\">5. \u8f7d\u6ce2\u8c03\u5236\u65b9\u6cd5\uff08\u8c03\u76f8\/BPSK\uff09<\/a><\/li>\n\n\n\n<li><a href=\"#6-\u4fe1\u53f7\u89e3\u8c03\u4e0e\u8f7d\u6ce2\u91cd\u5efa\">6. \u4fe1\u53f7\u89e3\u8c03\u4e0e\u8f7d\u6ce2\u91cd\u5efa<\/a><\/li>\n\n\n\n<li><a href=\"#ai-\u603b\u7ed3\">AI \u603b\u7ed3<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. GPS\u65f6\u95f4\u4e0eUTC\u65f6\u95f4\u7684\u5dee\u5f02\u53ca\u8f6c\u6362\u53c2\u6570 <a href=\"https:\/\/www.bilibili.com\/video\/BV1ia4y1s7sj_p25?t=0\" target=\"_blank\" rel=\"noreferrer noopener\">\u539f\u7247 @ 00:00<\/a>*<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5bfc\u822a\u7535\u6587\u7684\u6570\u636e\u5757\u4e2d\uff0c\u5305\u542b\u4e86\u4e00\u7ec4\u53c2\u6570\u7528\u4e8e\u63cf\u8ff0 <strong>GPS\u65f6\u95f4 (GPST)<\/strong> \u4e0e <strong>\u534f\u8c03\u4e16\u754c\u65f6 (UTC)<\/strong> \u4e4b\u95f4\u7684\u5dee\u5f02\u3002\u8fd9\u5bf9\u4e8e\u5c06GPS\u65f6\u95f4\u8f6c\u6362\u4e3a\u901a\u7528\u7684UTC\u65f6\u95f4\u81f3\u5173\u91cd\u8981\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Screenshot-[00:28]<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6574\u6570\u79d2\u5dee\u5f02 (Leap Seconds)<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>UTC\u65f6\u95f4\u4f1a\u8fdb\u884c\u8df3\u79d2\uff08\u95f0\u79d2\uff09\u8c03\u6574\uff0c\u800cGPS\u65f6\u95f4\u662f\u8fde\u7eed\u8ba1\u65f6\u7684\uff0c\u4e0d\u8fdb\u884c\u8df3\u79d2\u3002<\/li>\n\n\n\n<li><strong>\u8d77\u59cb\u70b9<\/strong>\uff1aGPS\u65f6\u95f4\u4ece <strong>1980\u5e741\u67086\u65e5 0\u70b9<\/strong> \u5f00\u59cb\u8d77\u7b97\u3002<\/li>\n\n\n\n<li>\u968f\u7740UTC\u4e0d\u65ad\u8fdb\u884c\u8df3\u79d2\u8c03\u6574\uff0cGPS\u65f6\u95f4\u4e0eUTC\u65f6\u95f4\u4e4b\u95f4\u4f1a\u4ea7\u751f\u7d2f\u79ef\u7684\u6574\u6570\u79d2\u5dee\u5f02\uff08\u4f8b\u5982\u5dee19\u79d2\u300120\u79d2\u7b49\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5fae\u5c0f\u65f6\u95f4\u5dee\u5f02 (Clock Drift)<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>UTC\u65f6\u95f4\u7531\u5168\u7403\u7ea660\u4e2a\u5b9e\u9a8c\u5ba4\u7684200-300\u53f0\u539f\u5b50\u949f\u5171\u540c\u7ef4\u6301\u3002<\/li>\n\n\n\n<li>GPS\u65f6\u95f4\u7531\u7cfb\u7edf\u5185\u90e8\u8f83\u5c11\u6570\u91cf\uff08\u51e0\u5341\u53f0\uff09\u7684\u539f\u5b50\u949f\u7ef4\u6301\u3002<\/li>\n\n\n\n<li>\u56e0\u6b64\uff0c\u540c\u4e00\u77ac\u95f4\u4e24\u4e2a\u65f6\u95f4\u7cfb\u7edf\u9664\u4e86\u6574\u6570\u79d2\u5dee\u5f02\u5916\uff0c\u8fd8\u5b58\u5728\u5fae\u5c0f\u7684\u79d2\u7ea7\u4ee5\u4e0b\u5dee\u5f02\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u591a\u9879\u5f0f\u62df\u5408<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u79cd\u5fae\u5c0f\u5dee\u5f02\u662f\u65f6\u95f4\u7684\u51fd\u6570\uff0c\u968f\u65f6\u95f4\u53d8\u5316\u3002<\/li>\n\n\n\n<li>\u5bfc\u822a\u7535\u6587\u4e2d\u63d0\u4f9b\u4e86\u591a\u9879\u5f0f\u7cfb\u6570\uff08\u5982 A_0, A_1 \u7b49\uff09\uff0c\u7528\u4e8e\u62df\u5408\u548c\u8ba1\u7b97\u8fd9\u4e24\u4e2a\u65f6\u95f4\u7cfb\u7edf\u5728\u7279\u5b9a\u65f6\u523b\u7684\u5fae\u5c0f\u504f\u5dee\u3002<\/li>\n\n\n\n<li><strong>\u76ee\u7684<\/strong>\uff1a\u901a\u8fc7\u63d0\u4f9b\u5c11\u91cf\u53c2\u6570\uff0c\u4f7f\u5f97\u7528\u6237\u53ef\u4ee5\u5728\u5bfc\u822a\u7535\u6587\u6709\u6548\u671f\u5185\u8ba1\u7b97\u51fa\u9ad8\u7cbe\u5ea6\u7684UTC\u65f6\u95f4\uff0c\u800c\u65e0\u9700\u4f20\u8f93\u5e9e\u5927\u7684\u5b9e\u65f6\u5bf9\u6bd4\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u7535\u79bb\u5c42\u5ef6\u8fdf\u6539\u6b63\u53c2\u6570 <a href=\"https:\/\/www.bilibili.com\/video\/BV1ia4y1s7sj_p25?t=208\" target=\"_blank\" rel=\"noreferrer noopener\">\u539f\u7247 @ 03:28<\/a>*<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bfc\u822a\u7535\u6587\u7684\u7b2c\u4e09\u4e2a\u6570\u636e\u5757\u4e2d\u5305\u542b\u4e86\u4e00\u7ec4\u7528\u4e8e\u4fee\u6b63 <strong>\u7535\u79bb\u5c42\u5ef6\u8fdf (Ionospheric Delay)<\/strong> \u7684\u53c2\u6570\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u53cc\u9891\u7528\u6237 vs \u5355\u9891\u7528\u6237<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u53cc\u9891\u63a5\u6536\u673a<\/strong>\uff1a\u5982\u679c\u7528\u6237\u62e5\u6709\u53cc\u9891\u63a5\u6536\u673a\uff08\u53ef\u4ee5\u89c2\u6d4b L_1 \u548c L_2 \u9891\u7387\uff09\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e24\u4e2a\u9891\u7387\u89c2\u6d4b\u503c\u7684\u7ebf\u6027\u7ec4\u5408\uff0c\u5229\u7528\u7269\u7406\u65b9\u6cd5\u76f4\u63a5\u6d88\u9664\u7535\u79bb\u5c42\u5ef6\u8fdf\u7684\u5f71\u54cd\u3002\u8fd9\u662f\u6700\u9ad8\u7cbe\u5ea6\u7684\u529e\u6cd5\u3002<\/li>\n\n\n\n<li><strong>\u5355\u9891\u63a5\u6536\u673a<\/strong>\uff1a\u5927\u591a\u6570\u666e\u901a\u7528\u6237\u4f7f\u7528\u7684\u662f\u5355\u9891\u63a5\u6536\u673a\uff08\u901a\u5e38\u53ea\u8c03\u5236\u5728 L_1 \u8f7d\u6ce2\u4e0a\uff0c\u65e9\u671f L_2 \u4e0a\u53ea\u6709P\u7801\u4e14\u88ab\u52a0\u5bc6\uff09\u3002\u5355\u9891\u7528\u6237\u65e0\u6cd5\u5229\u7528\u53cc\u9891\u89c2\u6d4b\u6d88\u9664\u8bef\u5dee\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Klobuchar \u6a21\u578b\u53c2\u6570<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>GPS\u7cfb\u7edf\u4e3a\u4e86\u652f\u63f4\u5355\u9891\u7528\u6237\uff0c\u5728\u5bfc\u822a\u7535\u6587\u4e2d\u5e7f\u64ad\u4e868\u4e2a\u53c2\u6570\uff1a\\alpha_0, \\alpha_1, \\alpha_2, \\alpha_3 \u548c \\beta_0, \\beta_1, \\beta_2, \\beta_3\u3002<\/li>\n\n\n\n<li>\u7528\u6237\u5229\u7528\u8fd9\u4e9b\u53c2\u6570\u4ee3\u5165\u7279\u5b9a\u7684\u8ba1\u7b97\u516c\u5f0f\uff08Klobuchar\u6a21\u578b\uff09\uff0c\u53ef\u4ee5\u8ba1\u7b97\u51fa\u7535\u79bb\u5c42\u5ef6\u8fdf\u7684\u4fee\u6b63\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4fee\u6b63\u6548\u679c<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5229\u7528\u8fd9\u4e9b\u53c2\u6570\u8fdb\u884c\u6a21\u578b\u6539\u6b63\uff0c\u6548\u679c\u5e76\u975e\u5b8c\u7f8e\u3002<\/li>\n\n\n\n<li>\u901a\u5e38\u53ea\u80fd\u6d88\u9664\u7535\u79bb\u5c42\u5ef6\u8fdf\u8bef\u5dee\u7684 <strong>60% \u5230 70%<\/strong> \u5de6\u53f3\u3002<\/li>\n\n\n\n<li>\u5269\u4f59\u7ea6 1\/3 \u7684\u6b8b\u5dee\u65e0\u6cd5\u901a\u8fc7\u8be5\u6a21\u578b\u6d88\u9664\uff0c\u8fd9\u4e5f\u662f\u5355\u9891\u5b9a\u4f4d\u7cbe\u5ea6\u7684\u9650\u5236\u56e0\u7d20\u4e4b\u4e00\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Screenshot-[04:19]<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u536b\u661f\u4fe1\u53f7\u8c03\u5236\u539f\u7406\u6982\u8bba <a href=\"https:\/\/www.bilibili.com\/video\/BV1ia4y1s7sj_p25?t=324\" target=\"_blank\" rel=\"noreferrer noopener\">\u539f\u7247 @ 05:24<\/a>*<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">GPS\u536b\u661f\u4fe1\u53f7\u7684\u751f\u6210\u6d89\u53ca\u4e24\u4e2a\u4e3b\u8981\u7684\u8c03\u5236\u6b65\u9aa4\u3002\u9700\u8981\u5c06\u4f4e\u901f\u7684\u5bfc\u822a\u7535\u6587\u548c\u9ad8\u901f\u7684\u6d4b\u8ddd\u7801\uff08C\/A\u7801\u6216P\u7801\uff09\u52a0\u8f7d\u5230\u9ad8\u9891\u8f7d\u6ce2\u4e0a\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa4\u4e00<\/strong>\uff1a\u5c06\u5bfc\u822a\u7535\u6587\uff08Data\uff09\u8c03\u5236\u5230\u6d4b\u8ddd\u7801\uff08Code\uff09\u4e0a\u3002<\/li>\n\n\n\n<li><strong>\u6b65\u9aa4\u4e8c<\/strong>\uff1a\u5c06\u6df7\u5408\u540e\u7684\u4e8c\u8fdb\u5236\u4fe1\u53f7\u8c03\u5236\u5230\u8f7d\u6ce2\uff08Carrier\uff09\u4e0a\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7801\u901f\u7387\u5bf9\u6bd4<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bfc\u822a\u7535\u6587<\/strong>\uff1a\u6bd4\u7279\u7387\u975e\u5e38\u4f4e\uff0c\u4e3a <strong>50 bps<\/strong>\u3002\u5373\u6bcf\u4e2a\u6bd4\u7279\u6301\u7eed <strong>20 ms<\/strong>\u3002<\/li>\n\n\n\n<li><strong>C\/A\u7801 (Coarse\/Acquisition Code)<\/strong>\uff1a\u7801\u7387\u4e3a <strong>1.023 Mbps<\/strong>\u3002\n<ul class=\"wp-block-list\">\n<li>\u5468\u671f\u4e3a 1 ms\u3002<\/li>\n\n\n\n<li>\u6bcf\u79d2\u6709 1.023 \\times 10^6 \u4e2a\u7801\u5143\u3002<\/li>\n\n\n\n<li><strong>\u6570\u91cf\u7ea7\u5dee\u5f02<\/strong>\uff1a\u5728\u5bfc\u822a\u7535\u6587\u7684\u4e00\u4e2a\u6bd4\u7279\uff0820 ms\uff09\u6301\u7eed\u65f6\u95f4\u5185\uff0cC\/A\u7801\u5df2\u7ecf\u91cd\u590d\u4e8620\u4e2a\u5468\u671f\uff0c\u5305\u542b\u7ea6 <strong>20,460<\/strong> \u4e2a\u7801\u5143\u3002P\u7801\u7684\u9891\u7387\u66f4\u9ad8\uff0810.23 Mbps\uff09\uff0c\u6570\u91cf\u66f4\u591a\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u5bfc\u822a\u7535\u6587\u4e0e\u6d4b\u8ddd\u7801\u7684\u6a212\u76f8\u52a0 <a href=\"https:\/\/www.bilibili.com\/video\/BV1ia4y1s7sj_p25?t=473\" target=\"_blank\" rel=\"noreferrer noopener\">\u539f\u7247 @ 07:53<\/a>*<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e00\u6b65\u8c03\u5236\u901a\u8fc7 <strong>\u6a212\u76f8\u52a0 (Modulo-2 Addition)<\/strong> \u7684\u65b9\u5f0f\u5b9e\u73b0\uff0c\u5373\u5c06\u5bfc\u822a\u7535\u6587\u7684\u4e8c\u8fdb\u5236\u6d41\u4e0e\u6d4b\u8ddd\u7801\u7684\u4e8c\u8fdb\u5236\u6d41\u8fdb\u884c\u903b\u8f91\u5f02\u6216\u8fd0\u7b97\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Screenshot-[08:37]<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8fd0\u7b97\u89c4\u5219<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>0 + 0 = 0<\/li>\n\n\n\n<li>1 + 1 = 0<\/li>\n\n\n\n<li>0 + 1 = 1<\/li>\n\n\n\n<li>1 + 0 = 1<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7269\u7406\u610f\u4e49<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5f53\u5bfc\u822a\u7535\u6587\u6bd4\u7279\u4e3a <strong>0<\/strong> \u65f6\uff1a\u6d4b\u8ddd\u7801\u4fdd\u6301\u539f\u6837\uff080 \\to 0, 1 \\to 1\uff09\u3002<\/li>\n\n\n\n<li>\u5f53\u5bfc\u822a\u7535\u6587\u6bd4\u7279\u4e3a <strong>1<\/strong> \u65f6\uff1a\u6d4b\u8ddd\u7801\u53d1\u751f\u53cd\u8f6c\uff080 \\to 1, 1 \\to 0\uff09\u3002<\/li>\n\n\n\n<li><strong>\u7ed3\u8bba<\/strong>\uff1a\u5728\u5bfc\u822a\u7535\u6587\u7684\u4e00\u4e2a\u6bd4\u7279\u65f6\u957f\u5185\uff08\u4f8b\u598220ms\uff09\uff0c\u6d4b\u8ddd\u7801\u8981\u4e48\u5b8c\u5168\u4fdd\u6301\u539f\u6837\uff0c\u8981\u4e48\u6574\u4f53\u53d6\u53cd\u3002\u8fd9\u79cd\u8c03\u5236\u65b9\u5f0f\u7b80\u5355\u4e14\u6709\u6548\uff0c\u5c06\u4f4e\u9891\u4fe1\u606f\u201c\u9690\u85cf\u201d\u5728\u6269\u9891\u7801\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u8f7d\u6ce2\u8c03\u5236\u65b9\u6cd5\uff08\u8c03\u76f8\/BPSK\uff09 <a href=\"https:\/\/www.bilibili.com\/video\/BV1ia4y1s7sj_p25?t=652\" target=\"_blank\" rel=\"noreferrer noopener\">\u539f\u7247 @ 10:52<\/a>*<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b8c\u6210\u7b2c\u4e00\u6b65\u540e\uff0c\u5f97\u5230\u7684\u662f\u4e00\u4e2a\u6df7\u5408\u7684\u4e8c\u8fdb\u5236\u5e8f\u5217\uff08\u75310\u548c1\u7ec4\u6210\uff09\uff0c\u63a5\u4e0b\u6765\u9700\u8981\u5c06\u5176\u8c03\u5236\u5230\u65e0\u7ebf\u7535\u8f7d\u6ce2\u4e0a\u53d1\u5c04\u51fa\u53bb\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u7684\u4fe1\u53f7\u8c03\u5236\u65b9\u5f0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u7684\u6b63\u5f26\u6ce2\u8f7d\u6ce2\u4fe1\u53f7\u53ef\u8868\u793a\u4e3a\uff1a<br>y = A \\cdot \\cos(\\omega t + \\phi_0)\u5176\u4e2d A \u4e3a\u632f\u5e45\uff0c\\omega \u4e3a\u89d2\u9891\u7387\uff0c\\phi_0 \u4e3a\u521d\u76f8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Screenshot-[11:37]<\/em><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8c03\u5e45 (AM)<\/strong>\uff1a\u6539\u53d8\u632f\u5e45 A \u6765\u4f20\u9012\u4fe1\u53f7\uff08\u5982\u5e7f\u64ad\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8c03\u9891 (FM)<\/strong>\uff1a\u6539\u53d8\u9891\u7387 \\omega \u6765\u4f20\u9012\u4fe1\u53f7\uff08\u5982\u9ad8\u4fdd\u771f\u5e7f\u64ad\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8c03\u76f8 (PM)<\/strong>\uff1a\u6539\u53d8\u76f8\u4f4d \\phi \u6765\u4f20\u9012\u4fe1\u53f7\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">GPS\u91c7\u7528\u7684\u8c03\u5236\u65b9\u5f0f\uff1a\u4e8c\u76f8\u76f8\u79fb\u952e\u63a7 (BPSK)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GPS\u4fe1\u53f7\u53ea\u6709\u201c0\u201d\u548c\u201c1\u201d\u4e24\u79cd\u72b6\u6001\uff0c\u56e0\u6b64\u4e0d\u4f7f\u7528\u590d\u6742\u7684\u6a21\u62df\u8c03\u5236\uff0c\u800c\u662f\u4f7f\u7528 <strong>\u8c03\u76f8<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89c4\u5219<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5f53\u6df7\u5408\u7801\u4fe1\u53f7\u4e3a <strong>0<\/strong> \u65f6\uff1a\u8f7d\u6ce2\u76f8\u4f4d\u4fdd\u6301\u4e0d\u53d8\uff08\u4e0e\u539f\u8f7d\u6ce2\u540c\u76f8\uff09\u3002<\/li>\n\n\n\n<li>\u5f53\u6df7\u5408\u7801\u4fe1\u53f7\u4e3a <strong>1<\/strong> \u65f6\uff1a\u8f7d\u6ce2\u76f8\u4f4d\u6539\u53d8 <strong>180^\\circ<\/strong>\uff08\u5373 \\pi\uff09\uff0c\u76f8\u5f53\u4e8e\u53d1\u751f\u5012\u76f8\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6570\u5b66\u8868\u8fbe<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u76f8\u4f4d\u6539\u53d8 180^\\circ \u76f8\u5f53\u4e8e\u5728\u8f7d\u6ce2\u524d\u4e58\u4ee5 <strong>-1<\/strong>\u3002<\/li>\n\n\n\n<li>\u8c03\u5236\u540e\u7684\u4fe1\u53f7\u5728\u65f6\u57df\u4e0a\u8868\u73b0\u4e3a\uff1a<br>y(t) = \\pm A \\cdot \\cos(\\omega t)<\/li>\n\n\n\n<li><strong>+1<\/strong> \u5bf9\u5e94\u7801\u5143 0\uff0c<strong>-1<\/strong> \u5bf9\u5e94\u7801\u5143 1\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Screenshot-[15:43]<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6ce2\u5f62\u7279\u70b9<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u7801\u5143\u53d1\u751f\u8df3\u53d8\uff080 \\to 1 \u6216 1 \\to 0\uff09\u7684\u77ac\u95f4\uff0c\u6b63\u5f26\u6ce2\u4f1a\u51fa\u73b0\u76f8\u4f4d\u4e0d\u8fde\u7eed\uff0c\u6ce2\u5f62\u770b\u8d77\u6765\u50cf\u662f\u7a81\u7136\u201c\u7ffb\u8f6c\u201d\u4e86\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u4fe1\u53f7\u89e3\u8c03\u4e0e\u8f7d\u6ce2\u91cd\u5efa <a href=\"https:\/\/www.bilibili.com\/video\/BV1ia4y1s7sj_p25?t=1243\" target=\"_blank\" rel=\"noreferrer noopener\">\u539f\u7247 @ 20:43<\/a>*<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u76f8\u4f4d\u4e0d\u8fde\u7eed\u95ee\u9898<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7531\u4e8e\u8c03\u5236\u9020\u6210\u4e86\u76f8\u4f4d\u5728 0 \u548c \\pi \u4e4b\u95f4\u8df3\u53d8\uff0c\u63a5\u6536\u5230\u7684\u536b\u661f\u4fe1\u53f7\uff08\u8c03\u5236\u540e\u7684\u8f7d\u6ce2\uff09\u5176\u76f8\u4f4d\u662f\u4e0d\u8fde\u7eed\u7684\u3002<\/li>\n\n\n\n<li>\u8fd9\u79cd\u4e0d\u8fde\u7eed\u7684\u4fe1\u53f7 <strong>\u4e0d\u80fd\u76f4\u63a5\u7528\u4e8e\u8f7d\u6ce2\u76f8\u4f4d\u6d4b\u91cf<\/strong>\u3002\u5982\u679c\u76f4\u63a5\u6d4b\u91cf\uff0c\u76f8\u4f4d\u8bfb\u6570\u4f1a\u9891\u7e41\u8df3\u53d8 180^\\circ\uff0c\u5bfc\u81f4\u65e0\u6cd5\u8fdb\u884c\u9ad8\u7cbe\u5ea6\u7684\u6d4b\u8ddd\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8f7d\u6ce2\u91cd\u5efa (Carrier Reconstruction)<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u63a5\u6536\u673a\u7aef\uff0c\u4e3a\u4e86\u8fdb\u884c\u9ad8\u7cbe\u5ea6\u7684\u8f7d\u6ce2\u76f8\u4f4d\u6d4b\u91cf\uff0c\u5fc5\u987b\u5148\u5c06\u8c03\u5236\u5728\u8f7d\u6ce2\u4e0a\u7684\u6d4b\u8ddd\u7801\u548c\u5bfc\u822a\u7535\u6587 <strong>\u5265\u79bb\uff08\u89e3\u8c03\uff09<\/strong>\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u5c06\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u518d\u6b21\u4e0e\u672c\u5730\u590d\u5236\u7684\u6d4b\u8ddd\u7801\u8fdb\u884c\u76f8\u5173\u5904\u7406\uff08\u6216\u4f7f\u7528\u5e73\u65b9\u73af\u7b49\u6280\u672f\uff09\uff0c\u53bb\u9664\u8c03\u5236\u4fe1\u53f7\uff0c<strong>\u6062\u590d\uff08\u91cd\u5efa\uff09<\/strong> \u51fa\u76f8\u4f4d\u8fde\u7eed\u7684\u7eaf\u51c0\u8f7d\u6ce2\u3002<\/li>\n\n\n\n<li>\u53ea\u6709\u5728\u6062\u590d\u51fa\u8fde\u7eed\u7684\u8f7d\u6ce2\u540e\uff0c\u624d\u80fd\u8fdb\u884c\u540e\u7eed\u7684\u7cbe\u5bc6\u5b9a\u4f4d\u6d4b\u91cf\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">AI \u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8282\u8bfe\u7a0b\u6df1\u5165\u8bb2\u89e3\u4e86GPS\u7cfb\u7edf\u4e2d\u7684\u65f6\u95f4\u53c2\u6570\u3001\u5927\u6c14\u6539\u6b63\u53ca\u4fe1\u53f7\u8c03\u5236\u7ed3\u6784\uff0c\u662f\u7406\u89e3GPS\u9ad8\u7cbe\u5ea6\u5b9a\u4f4d\u539f\u7406\u7684\u5173\u952e\u90e8\u5206\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u65f6\u95f4\u7cfb\u7edf<\/strong>\uff1a\u9610\u8ff0\u4e86GPS\u65f6\u95f4\u4e0eUTC\u65f6\u95f4\u7684\u533a\u522b\u3002\u4e24\u8005\u5b58\u5728 <strong>\u6574\u6570\u79d2\u8df3\u53d8<\/strong>\uff08Leap Seconds\uff09\u548c <strong>\u5fae\u5c0f\u949f\u5dee<\/strong>\u3002\u5bfc\u822a\u7535\u6587\u63d0\u4f9b\u4e86\u591a\u9879\u5f0f\u7cfb\u6570\uff0c\u5141\u8bb8\u7528\u6237\u8ba1\u7b97\u51fa\u9ad8\u7cbe\u5ea6\u7684UTC\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><strong>\u7535\u79bb\u5c42\u6539\u6b63<\/strong>\uff1a\u9488\u5bf9 <strong>\u5355\u9891\u7528\u6237<\/strong>\uff0c\u7cfb\u7edf\u63d0\u4f9b\u4e868\u4e2a\u7535\u79bb\u5c42\u5ef6\u8fdf\u6539\u6b63\u53c2\u6570\uff08Klobuchar\u6a21\u578b\uff09\u3002\u867d\u7136\u65e0\u6cd5\u50cf\u53cc\u9891\u89c2\u6d4b\u90a3\u6837\u5b8c\u5168\u6d88\u9664\u8bef\u5dee\uff0c\u4f46\u80fd\u4fee\u6b63\u7ea6 <strong>60%-70%<\/strong> \u7684\u7535\u79bb\u5c42\u5ef6\u8fdf\uff0c\u8fd9\u5bf9\u666e\u901a\u5bfc\u822a\u7cbe\u5ea6\u81f3\u5173\u91cd\u8981\u3002<\/li>\n\n\n\n<li><strong>\u4fe1\u53f7\u8c03\u5236\u673a\u5236<\/strong>\uff1a\u8be6\u7ec6\u89e3\u6790\u4e86\u4ece\u6570\u636e\u5230\u65e0\u7ebf\u7535\u6ce2\u7684\u8f6c\u6362\u8fc7\u7a0b\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u7b2c\u4e00\u7ea7\u8c03\u5236<\/strong>\uff1a\u901a\u8fc7 <strong>\u6a212\u76f8\u52a0<\/strong>\uff0c\u5c06\u4f4e\u901f\u7684\u5bfc\u822a\u7535\u6587\uff0850 bps\uff09\u52a0\u8f7d\u5230\u9ad8\u901f\u7684\u6d4b\u8ddd\u7801\uff08\u5982C\/A\u7801 1.023 Mbps\uff09\u4e0a\u3002<\/li>\n\n\n\n<li><strong>\u7b2c\u4e8c\u7ea7\u8c03\u5236<\/strong>\uff1a\u91c7\u7528 <strong>\u4e8c\u76f8\u76f8\u79fb\u952e\u63a7 (BPSK)<\/strong> \u6280\u672f\uff0c\u6839\u636e\u4e8c\u8fdb\u5236\u7801\u5143\uff080\u62161\uff09\u63a7\u5236\u8f7d\u6ce2\u76f8\u4f4d\u53d1\u751f <strong>0^\\circ \u6216 180^\\circ<\/strong> \u7684\u7ffb\u8f6c\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6d4b\u91cf\u542f\u793a<\/strong>\uff1a\u6307\u51fa\u4e86BPSK\u8c03\u5236\u5bfc\u81f4\u8f7d\u6ce2\u76f8\u4f4d\u4e0d\u8fde\u7eed\uff0c\u56e0\u6b64\u5728\u63a5\u6536\u673a\u8fdb\u884c\u8f7d\u6ce2\u76f8\u4f4d\u6d4b\u91cf\u524d\uff0c\u5fc5\u987b\u5148\u8fdb\u884c <strong>\u4fe1\u53f7\u89e3\u8c03\u4e0e\u8f7d\u6ce2\u91cd\u5efa<\/strong>\uff0c\u8fd9\u662fGPS\u63a5\u6536\u673a\u4fe1\u53f7\u5904\u7406\u7684\u6838\u5fc3\u73af\u8282\u4e4b\u4e00\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u5f55 1. GPS\u65f6\u95f4\u4e0eUTC\u65f6\u95f4\u7684\u5dee\u5f02\u53ca\u8f6c\u6362\u53c2\u6570 \u539f\u7247 @ 00:00* \u5728\u5bfc\u822a\u7535\u6587\u7684\u6570\u636e\u5757\u4e2d\uff0c\u5305\u542b\u4e86\u4e00\u7ec4\u53c2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[3,2],"tags":[6,4],"class_list":["post-76","post","type-post","status-publish","format-standard","hentry","category-gps","category-note","tag-ai","tag-4"],"_links":{"self":[{"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=\/wp\/v2\/posts\/76","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=76"}],"version-history":[{"count":1,"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=\/wp\/v2\/posts\/76\/revisions"}],"predecessor-version":[{"id":77,"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=\/wp\/v2\/posts\/76\/revisions\/77"}],"wp:attachment":[{"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=76"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=76"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hpu.gv.uy\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}