{"id":3877,"date":"2023-06-19T09:29:46","date_gmt":"2023-06-19T01:29:46","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=3877"},"modified":"2024-05-09T12:50:49","modified_gmt":"2024-05-09T04:50:49","slug":"ftzxhsytxjqyy","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/3877.html","title":{"rendered":"FSK\u8c03\u5236\u4fe1\u53f7\u65f6\u57df\u7279\u6027\u53ca\u5176\u5e94\u7528"},"content":{"rendered":"\n

\u3000\u3000FSK\u8c03\u5236<\/strong>\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u5b57\u901a\u4fe1\u65b9\u5f0f\uff0c\u5176\u5728\u65e0\u7ebf\u901a\u4fe1\u3001\u7535\u529b\u901a\u4fe1\u3001\u9065\u63a7\u9065\u6d4b\u7b49\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u5728FSK\u8c03\u5236\u4e2d\uff0c\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u5bf9\u4fe1\u53f7\u7684\u4f20\u8f93\u8d28\u91cf\u548c\u7cfb\u7edf\u6027\u80fd\u6709\u7740\u91cd\u8981\u7684\u5f71\u54cd\u3002\u56e0\u6b64\uff0c\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8FSK\u8c03\u5236\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u53ca\u5176\u5e94\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001FSK\u8c03\u5236\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027<\/h2>\n\n\n\n

\u3000\u3000FSK\u8c03\u5236\u4fe1\u53f7\u662f\u7531\u4e24\u4e2a\u4e0d\u540c\u9891\u7387\u7684\u6b63\u5f26\u6ce2\u7ec4\u6210\u7684\uff0c\u5176\u65f6\u57df\u6ce2\u5f62\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/p>\n\n\n\n

\u3000\u3000s(t)=Acos(2\u03c0f1t+\u03c61) \u6216 s(t)=Acos(2\u03c0f2t+\u03c62)<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0cA\u4e3a\u632f\u5e45\uff0cf1\u548cf2\u4e3a\u4e24\u4e2a\u4e0d\u540c\u7684\u8f7d\u6ce2\u9891\u7387\uff0c\u03c61\u548c\u03c62\u4e3a\u76f8\u4f4d\u89d2\u3002<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5728FSK\u8c03\u5236\u4e2d\uff0c\u6570\u5b57\u4fe1\u53f7\u76840\u548c1\u5206\u522b\u5bf9\u5e94\u4e24\u4e2a\u4e0d\u540c\u7684\u8f7d\u6ce2\u9891\u7387\uff0c\u4f8b\u5982f1\u548cf2.\u5f53\u6570\u5b57\u4fe1\u53f7\u4e3a0\u65f6\uff0c\u8c03\u5236\u4fe1\u53f7\u7684\u9891\u7387\u4e3af1;\u5f53\u6570\u5b57\u4fe1\u53f7\u4e3a1\u65f6\uff0c\u8c03\u5236\u4fe1\u53f7\u7684\u9891\u7387\u4e3af2.\u56e0\u6b64\uff0cFSK\u8c03\u5236\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u4e0e\u6570\u5b57\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u5bc6\u5207\u76f8\u5173\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u65f6\u57df\u4e0a\uff0cFSK\u8c03\u5236\u4fe1\u53f7\u7684\u6ce2\u5f62\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\u60c5\u51b5\uff0c\u5373\u540c\u76f8\u4f4d\u548c\u5f02\u76f8\u4f4d\u3002\u540c\u76f8\u4f4dFSK\u8c03\u5236\u4fe1\u53f7\u7684\u6ce2\u5f62\u8f83\u4e3a\u5e73\u6ed1\uff0c\u800c\u5f02\u76f8\u4f4dFSK\u8c03\u5236\u4fe1\u53f7\u7684\u6ce2\u5f62\u5219\u8f83\u4e3a\u9661\u5ced\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u540c\u76f8\u4f4dFSK\u8c03\u5236\u4e2d\uff0c\u4e24\u4e2a\u8f7d\u6ce2\u7684\u76f8\u4f4d\u5dee\u4e3a0.\u56e0\u6b64\u4e24\u4e2a\u6b63\u5f26\u6ce2\u7684\u76f8\u4f4d\u53d8\u5316\u8f83\u4e3a\u5e73\u7f13;\u800c\u5728\u5f02\u76f8\u4f4dFSK\u8c03\u5236\u4e2d\uff0c\u4e24\u4e2a\u8f7d\u6ce2\u7684\u76f8\u4f4d\u5dee\u4e3a\u03c0\uff0c\u56e0\u6b64\u4e24\u4e2a\u6b63\u5f26\u6ce2\u7684\u76f8\u4f4d\u53d8\u5316\u8f83\u4e3a\u9661\u5ced\u3002<\/p>\n\n\n\n

\u3000\u3000\u53e6\u5916\uff0cFSK\u8c03\u5236\u4fe1\u53f7\u7684\u5e26\u5bbd\u4e5f\u4e0e\u5176\u65f6\u57df\u7279\u6027\u5bc6\u5207\u76f8\u5173\u3002\u5728\u540c\u76f8\u4f4dFSK\u8c03\u5236\u4e2d\uff0c\u5e26\u5bbd\u4e3a\u0394f=f2-f1;\u5728\u5f02\u76f8\u4f4dFSK\u8c03\u5236\u4e2d\uff0c\u5e26\u5bbd\u4e3a\u0394f=2(f2-f1)\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001FSK\u8c03\u5236\u4fe1\u53f7\u7684\u5e94\u7528<\/h2>\n\n\n\n

\u3000\u30001. \u65e0\u7ebf\u901a\u4fe1<\/h3>\n\n\n\n

\u3000\u3000FSK\u8c03\u5236\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u4f8b\u5982\uff0c\u65e0\u7ebf\u9065\u63a7\u5668\u4e2d\u7684\u4fe1\u53f7\u901a\u5e38\u91c7\u7528FSK\u8c03\u5236\u65b9\u5f0f\u4f20\u8f93\u3002\u6b64\u5916\uff0cFSK\u8c03\u5236\u8fd8\u88ab\u7528\u4e8e\u84dd\u7259\u3001Wi-Fi\u7b49\u65e0\u7ebf\u901a\u4fe1\u6807\u51c6\u4e2d\u3002<\/p>\n\n\n\n

\u3000\u30002. \u7535\u529b\u901a\u4fe1<\/h3>\n\n\n\n

\u3000\u3000FSK\u8c03\u5236\u5728\u7535\u529b\u901a\u4fe1\u4e2d\u4e5f\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u4f8b\u5982\uff0c\u5728\u7535\u529b\u7cfb\u7edf\u4e2d\uff0c\u7535\u529b\u8f7d\u6ce2\u901a\u4fe1\u6280\u672f\u91c7\u7528FSK\u8c03\u5236\u65b9\u5f0f\u4f20\u8f93\u6570\u636e\uff0c\u4ee5\u5b9e\u73b0\u7535\u529b\u7cfb\u7edf\u7684\u8fdc\u7a0b\u76d1\u6d4b\u548c\u63a7\u5236\u3002<\/p>\n\n\n\n

\u3000\u30003. \u9065\u63a7\u9065\u6d4b<\/h3>\n\n\n\n

\u3000\u3000FSK\u8c03\u5236\u5728\u9065\u63a7\u9065\u6d4b\u4e2d\u4e5f\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u4f8b\u5982\uff0c\u5728\u536b\u661f\u901a\u4fe1\u4e2d\uff0cFSK\u8c03\u5236\u88ab\u7528\u4e8e\u4f20\u8f93\u9065\u6d4b\u6570\u636e\u3002<\/p>\n\n\n\n

\u3000\u3000\u7ed3\u8bba\uff1a<\/h2>\n\n\n\n

\u3000\u3000FSK\u8c03\u5236\u4fe1\u53f7\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u5b57\u901a\u4fe1\u65b9\u5f0f\uff0c\u5176\u5728\u65e0\u7ebf\u901a\u4fe1\u3001\u7535\u529b\u901a\u4fe1\u3001\u9065\u63a7\u9065\u6d4b\u7b49\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002FSK\u8c03\u5236\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u5bf9\u4fe1\u53f7\u7684\u4f20\u8f93\u8d28\u91cf\u548c\u7cfb\u7edf\u6027\u80fd\u6709\u7740\u91cd\u8981\u7684\u5f71\u54cd\u3002\u5728FSK\u8c03\u5236\u4e2d\uff0c\u6570\u5b57\u4fe1\u53f7\u76840\u548c1\u5206\u522b\u5bf9\u5e94\u4e24\u4e2a\u4e0d\u540c\u7684\u8f7d\u6ce2\u9891\u7387\uff0c\u56e0\u6b64FSK\u8c03\u5236\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u4e0e\u6570\u5b57\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u5bc6\u5207\u76f8\u5173\u3002<\/strong>FSK\u8c03\u5236\u4fe1\u53f7\u7684\u5e26\u5bbd\u4e5f\u4e0e\u5176\u65f6\u57df\u7279\u6027\u5bc6\u5207\u76f8\u5173\u3002\u5728\u540c\u76f8\u4f4dFSK\u8c03\u5236\u4e2d\uff0c\u5e26\u5bbd\u4e3a\u0394f=f2-f1;\u5728\u5f02\u76f8\u4f4dFSK\u8c03\u5236\u4e2d\uff0c\u5e26\u5bbd\u4e3a\u0394f=2(f2-f1)\u3002<\/strong>FSK\u8c03\u5236\u5728\u65e0\u7ebf\u901a\u4fe1\u3001\u7535\u529b\u901a\u4fe1\u3001\u9065\u63a7\u9065\u6d4b\u7b49\u9886\u57df\u4e2d\u7684\u5e94\u7528\u4e5f\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u8ba4\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

FSK\u8c03\u5236\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u5b57\u901a\u4fe1\u65b9\u5f0f\uff0c\u5176\u5728\u65e0\u7ebf\u901a\u4fe1\u3001\u7535\u529b\u901a\u4fe1\u3001\u9065\u63a7\u9065\u6d4b\u7b49\u9886\u57df\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u5728FSK\u8c03\u5236\u4e2d\uff0c\u4fe1\u53f7\u7684\u65f6\u57df\u7279\u6027\u5bf9\u4fe1\u53f7\u7684\u4f20\u8f93\u8d28\u91cf\u548c\u7cfb\u7edf\u6027\u80fd\u6709\u7740\u91cd\u8981\u7684\u5f71\u54cd\u3002<\/p>\n","protected":false},"author":1,"featured_media":3671,"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":[123,52,415,124],"class_list":["post-3877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-fsk","tag-wxtx","tag-tzxh","tag-pyjk"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/3877","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=3877"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/3877\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/3671"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=3877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=3877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=3877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}