{"id":16429,"date":"2026-06-02T03:26:34","date_gmt":"2026-06-02T03:26:34","guid":{"rendered":"https:\/\/sistc.com\/?p=16429"},"modified":"2026-06-02T03:26:36","modified_gmt":"2026-06-02T03:26:36","slug":"blog-long-range-pickup-dsp-optimization","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/blog-long-range-pickup-dsp-optimization\/","title":{"rendered":"\u514b\u670d\u8ddd\u79bb\u548c\u5ef6\u8fdf\uff1a\u5d4c\u5165\u5f0f\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u5668\u4e0a\u7684\u786c\u5b9e\u65f6 MVDR \u5de5\u7a0b"},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p class=\"wp-block-paragraph\"><strong>\u6807\u7b7e<\/strong>:\u957f\u8ddd\u79bb\u4f20\u611f | \u97f3\u9891 DSP | \u5b9a\u70b9\u4f18\u5316 | \u5d4c\u5165\u5f0f\u7cfb\u7edf | \u9ea6\u514b\u98ce\u9635\u5217 <strong>\u4f5c\u8005<\/strong>:SISTC \u6280\u672f\u56e2\u961f<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>\u5df2\u51fa\u7248<\/strong>:2026 \u5e74 6 \u6708 2 \u65e5 <strong>\u9605\u8bfb\u65f6\u95f4<\/strong>: 6 \u5206\u949f<\/p><\/blockquote><p class=\"wp-block-paragraph\">\u5728\u8fdc\u8ddd\u79bb\u58f0\u5b66\u4f20\u611f\u4e2d\uff0c\u58f0\u97f3\u4f20\u64ad\u9075\u5faa <strong>\u5e73\u65b9\u53cd\u6bd4\u5f8b<\/strong> (\u8ddd\u79bb\u6bcf\u589e\u52a0\u4e00\u500d\uff0c\u58f0\u538b\u964d\u4f4e\u7ea6 6 \u5206\u8d1d\uff09\u3002\u5728\u5d4c\u5165\u5f0f\u786c\u4ef6\u4e0a\u4fdd\u6301\u5fae\u79d2\u7ea7\u7684\u6267\u884c\u8fb9\u754c\uff0c\u540c\u65f6\u6355\u6349\u8de8\u8d8a\u9065\u8fdc\u7269\u7406\u8ddd\u79bb\u7684\u6e05\u6670\u4fe1\u53f7\uff0c\u662f\u58f0\u5b66\u5de5\u7a0b\u5e08\u9762\u4e34\u7684\u7ec8\u6781\u6311\u6218\u3002<\/p><h3 class=\"wp-block-heading\">1.\u8fdc\u8ddd\u79bb\u58f0\u5b66\u8def\u5f84\u7684\u6280\u672f\u5206\u7c7b\u6cd5<\/h3><p class=\"wp-block-paragraph\">\u6839\u636e\u73b0\u573a\u6761\u4ef6\u7684\u9650\u5236\uff0c\u5de5\u4e1a\u7ea7\u8fdc\u573a\u97f3\u9891\u91c7\u96c6\u91c7\u7528\u4e86\u4e0d\u540c\u7684\u6280\u672f\u62d3\u6251\u7ed3\u6784\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>\u53cc\u9ea6\u514b\u98ce\u5b9a\u5411\u9635\u5217<\/strong>:\u4f18\u5316 <strong>0.1 \u81f3 8 \u7c73<\/strong>, \u5728\u95e8\u7981\u63a7\u5236\u3001IPC \u6444\u50cf\u5934\u548c\u5185\u90e8\u901a\u8bdd\u7cfb\u7edf\u4e2d\u4f7f\u7528\u672c\u5730\u5316\u4eba\u5de5\u667a\u80fd\u73af\u5883\u566a\u58f0\u6d88\u9664\uff08ENC\uff09\u6280\u672f\u3002<\/li>\n\n<li><strong>\u9ad8\u5bc6\u5ea6 MEMS \u58f0\u5b66\u6444\u50cf\u673a<\/strong>:\u5229\u7528\u591a\u8fbe 128 \u4e2a\u9ad8 SNR \u4fe1\u9053\u6765\u7ed8\u5236\u6574\u4e2a\u533a\u57df\u7684\u58f0\u5b66\u5f02\u5e38\u70b9 <strong>10 \u81f3 150 \u7c73<\/strong>, \u8fd9\u4e9b\u5de5\u5177\u5bf9\u4e8e\u5de5\u4e1a\u6c14\u4f53\u6cc4\u6f0f\u68c0\u6d4b\u548c\u9884\u6d4b\u6027\u7ef4\u62a4\u81f3\u5173\u91cd\u8981\u3002\u5f00\u6e90\u8bca\u65ad\u5de5\u5177\u5305\uff0c\u5982 <a href=\"https:\/\/github.com\/LCAV\/pyroomacoustics\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Pyroomacoustics<\/em> (GitHub)<\/a> \u4e3a\u8fd9\u4e9b\u5927\u89c4\u6a21\u591a\u901a\u9053\u73af\u5883\u5efa\u6a21\u63d0\u4f9b\u4e86\u57fa\u7840\u6a21\u62df\u6846\u67b6\u3002<\/li>\n\n<li><strong>\u4f4e\u7a7a\u58f0\u5b66\u5256\u9762\u6d4b\u91cf<\/strong>:\u901a\u8fc7\u65e0\u6e90\u3001\u975e\u89c6\u7ebf\u5206\u5e03\u5f0f\u9ea6\u514b\u98ce\u7f51\u683c\u8fdb\u884c\u90e8\u7f72\uff0c\u5728\u56fd\u9645\u51fa\u53e3\u5408\u89c4\u6846\u67b6\u5185\u5b89\u5168\u5730\u63a2\u6d4b\u3001\u5206\u7c7b\u548c\u8ddf\u8e2a\u7a7a\u4e2d\u76ee\u6807\u3002<\/li><\/ul><h3 class=\"wp-block-heading\">2.\u786c\u5b9e\u65f6 DSP \u97f3\u9891\u5904\u7406\u7ba1\u9053<\/h3><p class=\"wp-block-paragraph\">\u4e3a\u4e86\u4fdd\u8bc1\u5728\u4e0d\u4e22\u5e27\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u786e\u5b9a\u6027\u8ba1\u7b97\uff0c\u591a\u901a\u9053\u6570\u636e\u6d41\u5fc5\u987b\u901a\u8fc7\u4f18\u5316\u7684\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u5668\uff08DSP\uff09\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee\uff08DMA\uff09\u73af\u8def\u8fdb\u884c\u5904\u7406\uff1a<\/p><pre class=\"wp-block-code\"><code>[4\/8\/16-Ch MEMS \u9635\u5217 ] \u2500\u2500&gt; [ \u4f4e\u566a\u58f0\u524d\u7f6e\u653e\u5927\u5668 ] \u2500\u2500&gt; [ \u540c\u6b65 ADC \u91c7\u6837 ]\u3002\n                                                                   \u2502\n   +---------------------------------------------------------------+\n   \u2502 \uff08\u96f6\u8d85\u524d DMA \u4f20\u8f93\uff09\n   \u25bc\n[DSP L1 \u5185\u90e8\u5b58\u50a8\u5668 ] \u2500\u2500&gt; [ \u9884\u5904\u7406\uff1aFFT \/ \u53bb\u6df7\u54cd ] \u2502 \u2502 \uff08\u96f6\u5f00\u9500 DMA \u4f20\u8f93\n                                                   \u2502\n   +---------------------------------------------------------------+\n   \u25bc\n[\u6838\u5fc3\u58f0\u5b66\u5f15\u64ce\uff1aTDOA \/ MVDR \/ PF ] \u2500\u2500&gt; [ \u540e\u5904\u7406\uff1aVAD \/ AEC ] \u2500\u2500&gt; [ I2S \u8f93\u51fa ]\u3002\n<\/code><\/pre><h3 class=\"wp-block-heading\">3.\u5de5\u7a0b\u6743\u8861\u4e0e\u4f18\u5316\u7b56\u7565<\/h3><p class=\"wp-block-paragraph\">\u5728\u5c06\u6570\u5b66\u539f\u578b\u79fb\u690d\u5230\u5d4c\u5165\u5f0f\u5b9a\u70b9\u5e73\u53f0\u65f6\uff0cFAE \u548c\u5f00\u53d1\u4eba\u5458\u5fc5\u987b\u5bf9\u51e0\u4e2a\u5173\u952e\u56e0\u7d20\u8fdb\u884c\u6743\u8861\uff1a<\/p><h4 class=\"wp-block-heading\">3.1 FFT \u5757\u957f\u5ea6\u4e0e\u7cfb\u7edf\u5ef6\u8fdf\u7684\u5173\u7cfb<\/h4><p class=\"wp-block-paragraph\">\u66f4\u5927\u7684 FFT \u5e27\uff08\u5982 2048 \u70b9\uff09\u53ef\u63d0\u4f9b\u66f4\u9ad8\u7684\u9891\u7387\u5206\u8fa8\u7387\uff0c\u4ece\u800c\u589e\u5f3a MUSIC \u6216 SRP \u7b97\u6cd5\u7684\u7a7a\u95f4\u5b50\u5e26\u5206\u79bb\u80fd\u529b\u3002\u4e0d\u8fc7\uff0c\u7d2f\u79ef\u65f6\u95f4\u4f1a\u5e26\u6765\u56fa\u5b9a\u7684\u7b97\u6cd5\u5ef6\u8fdf\u3002\u5bf9\u4e8e\u4e25\u683c\u7684\u5507\u97f3\u540c\u6b65\u548c\u5b9e\u65f6\u901a\u4fe1\u7cfb\u7edf\uff0c\u4e00\u4e2a <strong>512 \u6216 1024 \u70b9<\/strong> \u7a97\u53e3\u4ee3\u8868\u4e86\u884c\u4e1a\u6807\u51c6\u7684\u6298\u8877\u65b9\u6848\u3002<\/p><h4 class=\"wp-block-heading\">3.2 \u5b9a\u70b9 Q \u683c\u5f0f\u7f29\u653e<\/h4><p class=\"wp-block-paragraph\">\u867d\u7136\u6d6e\u70b9 DSP \u5177\u6709\u65e0\u9650\u7684\u52a8\u6001\u8303\u56f4\uff0c\u4f46\u5927\u89c4\u6a21\u751f\u4ea7\u7684\u6210\u672c\u9650\u5236\u51b3\u5b9a\u4e86\u5fc5\u987b\u4f7f\u7528\u4f4e\u529f\u8017\u5b9a\u70b9 DSP \u6216 MCU\u3002\u5de5\u7a0b\u5e08\u5fc5\u987b\u4e25\u683c\u6267\u884c <strong>Q15 \u6216 Q31 \u5c0f\u6570\u6570\u636e\u7f29\u653e<\/strong> \u8de8\u8d8a\u6240\u6709\u77e9\u9635\u4e58\u6cd5\uff0c\u4ee5\u9632\u6b62\u4ea4\u53c9\u76f8\u5173\u7d2f\u52a0\u65f6\u53d1\u751f\u707e\u96be\u6027\u7684\u4f4d\u6ea2\u51fa\u3002<\/p><h4 class=\"wp-block-heading\">3.3 \u901a\u8fc7 LDL \u5206\u89e3\u8fdb\u884c\u77e9\u9635\u53cd\u6f14<\/h4><p class=\"wp-block-paragraph\">MVDR \u7b97\u6cd5\u9700\u8981\u5728\u6bcf\u6b21\u5e27\u66f4\u65b0\u65f6\u8ba1\u7b97\u7a7a\u95f4\u534f\u65b9\u5dee\u77e9\u9635\u7684\u9006\uff0c\u8fd9\u4e00\u64cd\u4f5c\u5f88\u5bb9\u6613\u4f7f\u5d4c\u5165\u5f0f\u67b6\u6784\u4e0d\u582a\u91cd\u8d1f\u3002\u7531\u4e8e\u534f\u65b9\u5dee\u77e9\u9635\u662f\u8d6b\u7c73\u7279\u6b63\u6709\u9650\u77e9\u9635\uff0c\u56e0\u6b64\u7528 <strong>LDL \u5206\u89e3\u6216 Cholesky \u56e0\u5f0f\u5206\u89e3<\/strong> \u5c06\u7b97\u6cd5\u590d\u6742\u5ea6\u964d\u4f4e\u4e86\u8fd1 50%\uff0c\u540c\u65f6\u4fdd\u8bc1\u4e86\u6570\u503c\u7a33\u5b9a\u6027\uff0c\u4e0d\u53d7\u91cf\u5316\u566a\u58f0\u7684\u5f71\u54cd\u3002<\/p><h3 class=\"wp-block-heading\">4.\u58f0\u5b66\u4fe1\u53f7\u7ed3\u6784\u9009\u62e9\u6811<\/h3><p class=\"wp-block-paragraph\">\u4e3a\u4e86\u7b80\u5316\u60a8\u7684\u5f00\u53d1\u5468\u671f\uff0c\u6211\u4eec\u7684\u5de5\u7a0b\u56e2\u961f\u5408\u6210\u4e86\u8fd9\u4e2a\u7b97\u6cd5\u9009\u62e9\u77e9\u9635\uff1a<\/p><pre class=\"wp-block-code\"><code>\u56fe TD\n    A[\u5b9a\u4e49\u58f0\u5b66\u6355\u83b7\u8303\u56f4] --&gt; B{\u8bc4\u4f30\u53ef\u7528\u8ba1\u7b97\u9884\u7b97\uff1f\uff5d\n    B--&gt;|\u8d44\u6e90\u53d7\u9650\u7684 MCU| C[\u90e8\u7f72 TDOA \/ GCC-PHAT \u7ba1\u7ebf\uff3d\n    B--&gt;|\u5d4c\u5165\u5f0f\u5b9e\u65f6 DSP| D[\u90e8\u7f72 SRP-PHAT + \u5361\u5c14\u66fc\u8f68\u8ff9\u6ee4\u6ce2\u5668\uff3d\n    B--&gt;|\u8fb9\u7f18 AI \u5904\u7406\u5668\/FPGA|E[\u90e8\u7f72 MVDR \u6ce2\u675f\u6210\u5f62 + MUSIC \u5b50\u7a7a\u95f4\uff3d\n    \n    C --&gt; F{\u76ee\u6807\u662f\u5426\u52a8\u6001\u79fb\u52a8\uff1f\uff5d\n    D --&gt; F\n    E --&gt; F\n    \n    F--&gt;|\u5426\uff1a\u9759\u6001\u76ee\u6807| G[\u8f93\u51fa\u5feb\u7167\u89d2\u5750\u6807\uff3d\n    F --&gt;|Yes: Dynamic Target| H{\u8bc4\u4f30\u8f68\u8ff9\u975e\u7ebf\u6027} F --&gt;|Yes: \u52a8\u6001\u76ee\u6807\n    \n    H --&gt;|Linear \/ Constant Velocity| I[\u6574\u5408\u6269\u5c55\u5361\u5c14\u66fc\u6ee4\u6ce2\u5668 EKF] H --&gt;|High Non-Linearity!\n    H--&gt;|\u9ad8\u5ea6\u975e\u7ebf\u6027\/\u4ea4\u53c9\u8def\u5f84| J[\u96c6\u6210\u81ea\u9002\u5e94\u7c92\u5b50\u6ee4\u6ce2\u5668 PF] [[\u81ea\u9002\u5e94\u7c92\u5b50\u6ee4\u6ce2\u5668 PF]] H--&gt;|\u9ad8\u5ea6\u975e\u7ebf\u6027\/\u4ea4\u53c9\u8def\u5f84\n<\/code><\/pre><p class=\"wp-block-paragraph\">\u5728 <strong>\u65e0\u9521\u7845\u6e90\u79d1\u6280\u6709\u9650\u516c\u53f8\uff08SISTC(\u65e0\u9521\u7845\u6e90\u79d1\u6280\u6709\u9650\u516c\u53f8\uff09<\/strong>, \u6211\u4eec\u5728\u5b66\u672f\u7406\u8bba\u548c\u53ef\u6269\u5c55\u751f\u4ea7\u4e4b\u95f4\u67b6\u8d77\u4e86\u4e00\u5ea7\u6865\u6881\u3002\u6211\u4eec\u7684\u786c\u4ef6\u9635\u5217\u548c\u4fe1\u53f7\u8c03\u8282\u63a5\u53e3\u53ef\u4e3a\u60a8\u7684 DSP \u7ba1\u7ebf\u63d0\u4f9b\u7eaf\u51c0\u7684\u8d85\u4f4e\u566a\u58f0\u6570\u636e\u3002.<\/p><p class=\"wp-block-paragraph\">\ud83d\udc49 <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><strong><a href=\"https:\/\/sistc.com\/zh\/products\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u7b80\u5316\u7814\u53d1\u6d41\u7a0b\uff1a\u5728 SISTC \u63a2\u7d22\u672c\u673a\u517c\u5bb9\u7684\u58f0\u5b66\u6a21\u5757<\/a><\/strong> <\/mark><\/p><ul class=\"wp-block-list\"><li><strong>\u5168\u7403\u6280\u672f\u91c7\u8d2d\u548c\u6837\u54c1\u7533\u8bf7<\/strong>: denny_tan@sistc.com<\/li>\n\n<li><strong>\u516c\u53f8\u7f51\u7ad9<\/strong>: <a href=\"https:\/\/sistc.com\/zh\/\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">www.sistc.com<\/mark><\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>\u6807\u7b7e\u957f\u8ddd\u79bb\u4f20\u611f | \u97f3\u9891 DSP | \u5b9a\u70b9\u4f18\u5316 | \u5d4c\u5165\u5f0f\u7cfb\u7edf | \u9ea6\u514b\u98ce\u9635\u5217 \u4f5c\u8005\uff1a SISTC Technology TeamSISTC \u6280\u672f\u56e2\u961f \u53d1\u5e032026 \u5e74 6 \u6708 2 \u65e5 \u9605\u8bfb\u65f6\u95f4\uff1a 6 \u5206\u949f \u5728\u8fdc\u8ddd\u79bb\u58f0 [...]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","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":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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Discover engineering trade-offs, fixed-point Q-format scaling, and matrix inversion optimization for real-time DSP pipelines.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sistc.com\/zh\/blog-long-range-pickup-dsp-optimization\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hard Real-Time MVDR Beamforming: Embedded DSP Optimization\" \/>\n<meta property=\"og:description\" content=\"Stop far-field signal loss. 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