{"id":5516,"date":"2026-03-24T22:31:32","date_gmt":"2026-03-24T13:31:32","guid":{"rendered":"https:\/\/eternalsphere.net\/echoes\/?p=5516"},"modified":"2026-06-06T05:11:23","modified_gmt":"2026-06-05T20:11:23","slug":"oottr9acjle2jyl","status":"publish","type":"post","link":"https:\/\/eternalsphere.net\/echoes\/index.php\/2026\/03\/24\/oottr9acjle2jyl\/","title":{"rendered":"SDR\uff08\u8f6f\u4ef6\u65e0\u7ebf\u7535\uff09\u4e2d\u201c\u5e26\u5bbd\u201d\u7684\u771f\u5b9e\u542b\u4e49\uff1a\u4ece\u6982\u5ff5\u5230\u5b9e\u8df5"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728\u4fe1\u606f\u6280\u672f\u4e2d\uff0c\u201c\u5e26\u5bbd\u201d\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u4f46\u5bb9\u6613\u88ab\u8bef\u89e3\u7684\u6982\u5ff5\u3002\u800c\u5728 SDR\uff08\u8f6f\u4ef6\u65e0\u7ebf\u7535\uff09\u9886\u57df\uff0c\u5e26\u5bbd\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a\u7406\u8bba\u6307\u6807\uff0c\u800c\u662f\u76f4\u63a5\u51b3\u5b9a\u4e86\u4f60<strong>\u80fd\u770b\u5230\u4ec0\u4e48\u3001\u80fd\u5904\u7406\u591a\u5c11\u3001\u7cfb\u7edf\u538b\u529b\u6709\u591a\u5927<\/strong>\u7684\u6838\u5fc3\u53c2\u6570\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6587\u4ece\u5b9e\u9645\u4f7f\u7528\u89d2\u5ea6\uff0c\u7cfb\u7edf\u8bb2\u6e05\u695a\uff1a<br>\ud83d\udc49 SDR \u4e2d\u7684\u5e26\u5bbd\u5230\u5e95\u662f\u5982\u4f55\u4f53\u73b0\u7684\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u5e26\u5bbd\u7684\u672c\u8d28\uff1a\u4f60\u80fd\u201c\u540c\u65f6\u770b\u5230\u591a\u5bbd\u7684\u9891\u8c31\u201d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 SDR \u91cc\uff0c\u5e26\u5bbd\u53ef\u4ee5\u76f4\u89c2\u7406\u89e3\u4e3a\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u4f60\u4e00\u6b21\u6027\u80fd\u63a5\u6536\u3001\u6570\u5b57\u5316\u5e76\u5206\u6790\u7684\u9891\u7387\u8303\u56f4<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u628a\u5b83\u60f3\u8c61\u6210\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u4f60\u6253\u5f00\u4e86\u4e00\u6247\u201c\u89c2\u5bdf\u65e0\u7ebf\u4e16\u754c\u7684\u7a97\u6237\u201d\uff0c<br>\u7a97\u6237\u8d8a\u5bbd\uff0c\u4f60\u770b\u5230\u7684\u5185\u5bb9\u5c31\u8d8a\u591a\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u786c\u4ef6\u5c42\uff1a\u77ac\u65f6\u5e26\u5bbd\u51b3\u5b9a\u4e0a\u9650<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SDR \u786c\u4ef6\u672c\u8eab\u6709\u4e00\u4e2a\u5173\u952e\u6307\u6807\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 <strong>\u77ac\u65f6\u5e26\u5bbd\uff08Instantaneous Bandwidth\uff09<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u51b3\u5b9a\u4e86\u4f60\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 \u4e00\u6b21\u6027\u80fd\u201c\u8986\u76d6\u201d\u591a\u5c11\u9891\u7387\u8303\u56f4<br>\u2714 \u662f\u5426\u53ef\u4ee5\u540c\u65f6\u89c2\u5bdf\u591a\u4e2a\u4fe1\u53f7<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f4e\u6210\u672c SDR\uff1a\u7ea6 2 MHz \u7ea7\u522b<\/li>\n\n\n\n<li>\u4e2d\u7ea7\u8bbe\u5907\uff1a10~20 MHz<\/li>\n\n\n\n<li>\u9ad8\u7aef\u8bbe\u5907\uff1a\u66f4\u9ad8<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9e\u9645\u6548\u679c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u8c03\u5230 100 MHz\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e26\u5bbd 2 MHz \u2192 \u770b\u5230\u7ea6 99 ~ 101 MHz<\/li>\n\n\n\n<li>\u5e26\u5bbd 20 MHz \u2192 \u53ef\u4ee5\u770b\u5230 90 ~ 110 MHz<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u672c\u8d28\uff1a<br><strong>\u786c\u4ef6\u51b3\u5b9a\u4e86\u4f60\u201c\u80fd\u770b\u5230\u591a\u5bbd\u201d<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u91c7\u6837\u7387\uff1a\u5e26\u5bbd\u7684\u6838\u5fc3\u9650\u5236\u56e0\u7d20<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SDR \u7684\u6838\u5fc3\u8fc7\u7a0b\u662f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u6a21\u62df\u4fe1\u53f7 \u2192 \u6570\u5b57\u4fe1\u53f7\uff08ADC\u91c7\u6837\uff09<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u53d7\u4e00\u4e2a\u5173\u952e\u7406\u8bba\u63a7\u5236\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u5948\u594e\u65af\u7279\u91c7\u6837\u5b9a\u7406<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u6838\u5fc3\u7ed3\u8bba\u662f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u53ef\u5904\u7406\u5e26\u5bbd \u2248 \u91c7\u6837\u7387<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\uff08\u5728 SDR \u5e38\u7528\u7684 IQ \u590d\u6570\u91c7\u6837\u6a21\u5f0f\u4e0b\u6210\u7acb\uff09<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3e\u4f8b<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u91c7\u6837\u7387 2.4 MS\/s \u2192 \u5e26\u5bbd\u7ea6 2.4 MHz<\/li>\n\n\n\n<li>\u91c7\u6837\u7387 10 MS\/s \u2192 \u5e26\u5bbd\u7ea6 10 MHz<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u7ed3\u8bba\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 \u60f3\u8981\u66f4\u5927\u5e26\u5bbd \u2192 \u5fc5\u987b\u63d0\u9ad8\u91c7\u6837\u7387<br>\u2714 \u91c7\u6837\u7387 = \u5e26\u5bbd\u7684\u201c\u786c\u7ea6\u675f\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u8f6f\u4ef6\u5c42\uff1a\u5e26\u5bbd\u7684\u53ef\u89c6\u5316\u4f53\u73b0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 SDR \u8f6f\u4ef6\u4e2d\uff0c\u5e26\u5bbd\u6700\u76f4\u89c2\u7684\u4f53\u73b0\u662f\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9891\u8c31\u56fe\uff08Spectrum\uff09 + \u7011\u5e03\u56fe\uff08Waterfall\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6a2a\u8f74\uff1a\u9891\u7387\u8303\u56f4\uff08\u5c31\u662f\u5e26\u5bbd\uff09<\/li>\n\n\n\n<li>\u7eb5\u8f74\uff1a\u65f6\u95f4<\/li>\n\n\n\n<li>\u989c\u8272\uff1a\u4fe1\u53f7\u5f3a\u5ea6<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e26\u5bbd\u53d8\u5316\u7684\u5f71\u54cd<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5e26\u5bbd<\/th><th>\u7ed3\u679c<\/th><\/tr><\/thead><tbody><tr><td>\u5c0f\u5e26\u5bbd<\/td><td>\u53ea\u80fd\u770b\u5230\u5355\u4e2a\u4fe1\u53f7<\/td><\/tr><tr><td>\u5927\u5e26\u5bbd<\/td><td>\u540c\u65f6\u770b\u5230\u591a\u4e2a\u4fe1\u53f7<\/td><\/tr><tr><td>\u8d85\u5927\u5e26\u5bbd<\/td><td>\u89c2\u5bdf\u6574\u4e2a\u9891\u6bb5\u751f\u6001<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u672c\u8d28\uff1a<br><strong>\u5e26\u5bbd\u51b3\u5b9a\u4f60\u7684\u201c\u89c6\u91ce\u8303\u56f4\u201d<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u6570\u5b57\u6ee4\u6ce2\uff1a\u4f60\u5b9e\u9645\u201c\u4f7f\u7528\u591a\u5c11\u5e26\u5bbd\u201d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5373\u4f7f\u4f60\u91c7\u96c6\u4e86\u5f88\u5927\u7684\u5e26\u5bbd\uff0c\u4f60\u4e0d\u4e00\u5b9a\u5168\u90e8\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 SDR \u4e2d\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u53ef\u4ee5\u901a\u8fc7\u6570\u5b57\u6ee4\u6ce2\u5668\u201c\u88c1\u526a\u201d\u5e26\u5bbd<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u4fe1\u53f7\u5e26\u5bbd<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7c7b\u578b<\/th><th>\u5e26\u5bbd<\/th><\/tr><\/thead><tbody><tr><td>AM\u5e7f\u64ad<\/td><td>~10 kHz<\/td><\/tr><tr><td>FM\u5e7f\u64ad<\/td><td>~200 kHz<\/td><\/tr><tr><td>\u5bf9\u8bb2\u673a<\/td><td>~12.5 kHz<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u5b9e\u9645\u6d41\u7a0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5148\u91c7\u96c6\u5927\u5e26\u5bbd\uff08\u4f8b\u5982 2 MHz\uff09<\/li>\n\n\n\n<li>\u518d\u4ece\u4e2d\u9009\u53d6\u4e00\u5c0f\u6bb5\uff08\u4f8b\u5982 200 kHz\uff09<\/li>\n\n\n\n<li>\u5bf9\u8fd9\u90e8\u5206\u8fdb\u884c\u89e3\u8c03<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 \u8fd9\u5c31\u662f SDR \u7075\u6d3b\u6027\u7684\u6838\u5fc3<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u5e26\u5bbd = \u6570\u636e\u91cf = \u7cfb\u7edf\u538b\u529b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e26\u5bbd\u4e0d\u4ec5\u5f71\u54cd\u201c\u80fd\u770b\u5230\u4ec0\u4e48\u201d\uff0c\u8fd8\u76f4\u63a5\u5f71\u54cd\u7cfb\u7edf\u8d1f\u8f7d\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u636e\u7387\u516c\u5f0f\uff08\u7b80\u5316\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6570\u636e\u7387 \u2248 \u91c7\u6837\u7387 \u00d7 \u6bcf\u6837\u672c\u5b57\u8282\u6570 \u00d7 \u901a\u9053\u6570\uff08I\/Q\uff09\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u793a\u4f8b<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>10 MS\/s \u00d7 2\uff08I\/Q\uff09\u00d7 2 bytes \u2248 40 MB\/s<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 \u5f71\u54cd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CPU \u4f7f\u7528\u7387<\/li>\n\n\n\n<li>USB \u4f20\u8f93\u538b\u529b<\/li>\n\n\n\n<li>\u5185\u5b58\u5360\u7528<\/li>\n\n\n\n<li>\u5b9e\u65f6\u5904\u7406\u80fd\u529b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 \u5e26\u5bbd\u8d8a\u5927 \u2192 \u7cfb\u7edf\u538b\u529b\u6307\u6570\u7ea7\u4e0a\u5347<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u4e00\u4e2a\u7edf\u4e00\u7406\u89e3\u6846\u67b6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u628a SDR \u5e26\u5bbd\u7edf\u4e00\u7406\u89e3\u4e3a\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u4f60\u540c\u65f6\u6570\u5b57\u5316\u3001\u4f20\u8f93\u548c\u5904\u7406\u7684\u9891\u7387\u8303\u56f4<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u7531\u4e09\u90e8\u5206\u5171\u540c\u51b3\u5b9a\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 \u786c\u4ef6\u80fd\u529b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u51b3\u5b9a\u6700\u5927\u53ef\u63a5\u6536\u8303\u56f4<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2\ufe0f\u20e3 \u91c7\u6837\u7387<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u51b3\u5b9a\u5b9e\u9645\u53ef\u7528\u5e26\u5bbd<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3\ufe0f\u20e3 \u8f6f\u4ef6\u5904\u7406\u80fd\u529b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u51b3\u5b9a\u4f60\u80fd\u4e0d\u80fd\u201c\u5403\u4e0b\u8fd9\u4e48\u591a\u6570\u636e\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516b\u3001\u603b\u7ed3\uff08\u4e00\u53e5\u8bdd\u7248\u672c\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 SDR \u4e2d\u7684\u5e26\u5bbd\uff0c\u672c\u8d28\u5c31\u662f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u4f60\u4e00\u6b21\u6027\u80fd\u201c\u770b\u5230\u5e76\u5904\u7406\u201d\u7684\u65e0\u7ebf\u4e16\u754c\u8303\u56f4<\/strong><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e5d\u3001\u5ef6\u4f38\u601d\u8003<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7406\u89e3\u5e26\u5bbd\u4e4b\u540e\uff0c\u4f60\u53ef\u4ee5\u8fdb\u4e00\u6b65\u601d\u8003\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3a\u4ec0\u4e48 5G \u9700\u8981\u66f4\u5bbd\u5e26\u5bbd\uff1f<\/li>\n\n\n\n<li>\u4e3a\u4ec0\u4e48 SDR \u4f1a\u5403 CPU\uff1f<\/li>\n\n\n\n<li>\u4e3a\u4ec0\u4e48\u9ad8\u7aef\u8bbe\u5907\u4ef7\u683c\u6602\u8d35\uff1f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e9b\u95ee\u9898\uff0c\u672c\u8d28\u90fd\u548c\u201c\u5e26\u5bbd\u201d\u76f4\u63a5\u76f8\u5173\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4fe1\u606f\u6280\u672f\u4e2d\uff0c\u201c\u5e26\u5bbd\u201d\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u4f46\u5bb9\u6613\u88ab\u8bef\u89e3\u7684\u6982\u5ff5\u3002\u800c\u5728 SDR\uff08\u8f6f\u4ef6\u65e0\u7ebf\u7535\uff09\u9886\u57df\uff0c\u5e26\u5bbd\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a\u7406\u8bba\u6307\u6807\uff0c\u800c\u662f\u76f4\u63a5\u51b3\u5b9a\u4e86\u4f60\u80fd\u770b\u5230\u4ec0\u4e48\u3001\u80fd\u5904\u7406\u591a\u5c11\u3001\u7cfb\u7edf\u538b\u529b\u6709\u591a\u5927\u7684\u6838\u5fc3\u53c2\u6570\u3002 \u672c\u6587\u4ece\u5b9e\u9645\u4f7f\u7528\u89d2\u5ea6\uff0c\u7cfb\u7edf\u8bb2\u6e05\u695a\uff1a\ud83d\udc49 SDR 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