{"id":42126,"date":"2023-10-05T16:00:23","date_gmt":"2023-10-05T08:00:23","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=42126"},"modified":"2023-10-05T16:00:23","modified_gmt":"2023-10-05T08:00:23","slug":"pbkpm","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/42126.html","title":{"rendered":"PCM\u5305\u62ecPAM\u5417\uff1f"},"content":{"rendered":"

  PCM\uff08Pulse Code Modulation\uff09\u662f\u4e00\u79cd\u6570\u5b57\u4fe1\u53f7\u7f16\u7801\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u5c06\u4fe1\u53f7\u7684\u6a21\u62df\u91cf\u8f6c\u6362\u4e3a\u6570\u5b57\u91cf\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u4f20\u8f93\u548c\u5b58\u50a8\u3002\u90a3\u4e48\uff0cPCM\u662f\u5426\u5305\u62ecPAM\uff08Pulse Amplitude Modulation\uff09\u5462\uff1f\u672c\u6587\u5c06\u8be6\u7ec6\u8ba8\u8bbaPCM\u548cPAM\u4e4b\u95f4\u7684\u533a\u522b\u548c\u8054\u7cfb\u3002<\/p>\n

PCM\u7b80\u4ecb<\/h2>\n

  PCM\uff08Pulse Code Modulation\uff09\u662f\u4e00\u79cd\u6570\u5b57\u4fe1\u53f7\u7f16\u7801\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u5c06\u4fe1\u53f7\u7684\u6a21\u62df\u91cf\u8f6c\u6362\u4e3a\u6570\u5b57\u91cf\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u4f20\u8f93\u548c\u5b58\u50a8\u3002\u5b83\u901a\u5e38\u7531\u4e09\u90e8\u5206\u7ec4\u6210\uff1a\u91c7\u6837\u3001\u91cf\u5316\u548c\u7f16\u7801\u3002<\/p>\n

  \u91c7\u6837<\/h3>\n

  \u91c7\u6837\u662f\u6307\u5c06\u8fde\u7eed\u7684\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u79bb\u6563\u7684\u6570\u5b57\u91cf\uff0c\u5373\u628a\u6a21\u62df\u4fe1\u53f7\u7684\u65f6\u95f4\u8f74\u4e0a\u7684\u6bcf\u4e00\u4e2a\u70b9\u91c7\u6837\u6210\u6570\u5b57\u91cf\u3002<\/p>\n

  \u91cf\u5316<\/h3>\n

  \u91cf\u5316\u662f\u6307\u5c06\u91c7\u6837\u540e\u7684\u6570\u5b57\u91cf\u8f6c\u6362\u4e3a\u53ef\u64cd\u4f5c\u7684\u6570\u5b57\u91cf\uff0c\u5373\u628a\u91c7\u6837\u540e\u7684\u6570\u5b57\u91cf\u6309\u7167\u4e00\u5b9a\u7684\u7b49\u7ea7\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u91cf\u5316\u7ea7\u522b\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u5904\u7406\u548c\u4f20\u8f93\u3002<\/p>\n

  \u7f16\u7801<\/h3>\n

  \u7f16\u7801\u662f\u6307\u5c06\u91cf\u5316\u540e\u7684\u6570\u5b57\u91cf\u8f6c\u6362\u4e3a\u53ef\u7528\u4e8e\u4f20\u8f93\u7684\u4e8c\u8fdb\u5236\u7f16\u7801\uff0c\u4ee5\u4fbf\u5c06\u6570\u636e\u4f20\u8f93\u5230\u76ee\u7684\u5730\u3002\u7f16\u7801\u7684\u65b9\u6cd5\u5305\u62ec\u975e\u538b\u7f29\u7f16\u7801\u548c\u538b\u7f29\u7f16\u7801\u3002<\/p>\n

PAM\u7b80\u4ecb<\/h2>\n

  PAM\uff08Pulse Amplitude Modulation\uff09\u662f\u4e00\u79cd\u6570\u5b57\u4fe1\u53f7\u7f16\u7801\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u6539\u53d8\u8109\u51b2\u7684\u5e45\u5ea6\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u4f20\u8f93\u548c\u5b58\u50a8\u3002\u5b83\u901a\u5e38\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a\u91c7\u6837\u548c\u91cf\u5316\u3002<\/p>\n

  \u91c7\u6837<\/h3>\n

  \u91c7\u6837\u662f\u6307\u5c06\u8fde\u7eed\u7684\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u79bb\u6563\u7684\u6570\u5b57\u91cf\uff0c\u5373\u628a\u6a21\u62df\u4fe1\u53f7\u7684\u65f6\u95f4\u8f74\u4e0a\u7684\u6bcf\u4e00\u4e2a\u70b9\u91c7\u6837\u6210\u6570\u5b57\u91cf\u3002<\/p>\n

  \u91cf\u5316<\/h3>\n

  \u91cf\u5316\u662f\u6307\u5c06\u91c7\u6837\u540e\u7684\u6570\u5b57\u91cf\u8f6c\u6362\u4e3a\u53ef\u64cd\u4f5c\u7684\u6570\u5b57\u91cf\uff0c\u5373\u628a\u91c7\u6837\u540e\u7684\u6570\u5b57\u91cf\u6309\u7167\u4e00\u5b9a\u7684\u7b49\u7ea7\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u91cf\u5316\u7ea7\u522b\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u5904\u7406\u548c\u4f20\u8f93\u3002<\/p>\n

PCM\u4e0ePAM\u7684\u533a\u522b<\/h2>\n

  PCM\u548cPAM\u90fd\u662f\u6570\u5b57\u4fe1\u53f7\u7f16\u7801\u6280\u672f\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u4e00\u5b9a\u7684\u533a\u522b\u3002<\/p>\n

  \u7f16\u7801\u65b9\u5f0f<\/h3>\n

  PCM\u662f\u4e00\u79cd\u4e09\u6b65\u7f16\u7801\u65b9\u5f0f\uff0c\u5305\u62ec\u91c7\u6837\u3001\u91cf\u5316\u548c\u7f16\u7801\uff1b\u800cPAM\u662f\u4e00\u79cd\u4e24\u6b65\u7f16\u7801\u65b9\u5f0f\uff0c\u53ea\u5305\u62ec\u91c7\u6837\u548c\u91cf\u5316\u3002<\/p>\n

  \u4f20\u8f93\u6548\u7387<\/h3>\n

  \u7531\u4e8ePCM\u91c7\u7528\u4e86\u7f16\u7801\u6b65\u9aa4\uff0c\u5b83\u7684\u4f20\u8f93\u6548\u7387\u6bd4PAM\u9ad8\u3002<\/p>\n

  \u5931\u771f<\/h3>\n

  \u7531\u4e8ePCM\u91c7\u7528\u4e86\u7f16\u7801\u6b65\u9aa4\uff0c\u5b83\u7684\u5931\u771f\u6bd4PAM\u4f4e\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  PCM\u548cPAM\u90fd\u662f\u6570\u5b57\u4fe1\u53f7\u7f16\u7801\u6280\u672f\uff0c\u5b83\u4eec\u7684\u76ee\u7684\u662f\u5c06\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u4f20\u8f93\u548c\u5b58\u50a8\u3002<\/strong>\u4f46\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u4e00\u5b9a\u7684\u533a\u522b\uff0cPCM\u662f\u4e00\u79cd\u4e09\u6b65\u7f16\u7801\u65b9\u5f0f\uff0c\u5177\u6709\u8f83\u9ad8\u7684\u4f20\u8f93\u6548\u7387\u548c\u8f83\u4f4e\u7684\u5931\u771f\uff1b\u800cPAM\u662f\u4e00\u79cd\u4e24\u6b65\u7f16\u7801\u65b9\u5f0f\uff0c\u5177\u6709\u8f83\u4f4e\u7684\u4f20\u8f93\u6548\u7387\u548c\u8f83\u9ad8\u7684\u5931\u771f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

PCM\uff08PulseCodeModulation\uff09\u662f\u4e00\u79cd\u6570\u5b57\u4fe1\u53f7\u7f16\u7801\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u5c06\u4fe1\u53f7\u7684\u6a21\u62df\u91cf\u8f6c\u6362\u4e3a\u6570\u5b57\u91cf\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u4f20\u8f93\u548c\u5b58\u50a8\u3002\u90a3\u4e48\uff0cPCM\u662f\u5426\u5305\u62ecPAM\uff08Pulse<\/p>\n","protected":false},"author":1,"featured_media":4132,"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":[305],"class_list":["post-42126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-dzjs"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/42126","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=42126"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/42126\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/4132"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=42126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=42126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=42126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}