{"id":96094,"date":"2024-07-29T11:34:23","date_gmt":"2024-07-29T03:34:23","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=96094"},"modified":"2024-07-29T11:34:26","modified_gmt":"2024-07-29T03:34:26","slug":"flbqdjbjg","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/96094.html","title":{"rendered":"FIR\u6ee4\u6ce2\u5668\u7684\u57fa\u672c\u7ed3\u6784"},"content":{"rendered":"\n

\u3000\u3000FIR\u6ee4\u6ce2\u5668(Finite Impulse Response Filter\uff0c\u6709\u9650\u8109\u51b2\u54cd\u5e94\u6ee4\u6ce2\u5668)<\/strong>\u662f\u4e00\u79cd\u975e\u9012\u5f52\u578b\u6570\u5b57\u6ee4\u6ce2\u5668\uff0c\u5176\u57fa\u672c\u7ed3\u6784\u53ef\u4ee5\u5206\u4e3a\u51e0\u79cd\u7c7b\u578b\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5e38\u89c1\u7684FIR\u6ee4\u6ce2\u5668\u7ed3\u6784\uff1a<\/p>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u578b\u7ed3\u6784\u4e5f\u79f0\u4e3a\u201c\u76f4\u63a5I\u578b\u201d\u6216\u201c\u8f6c\u7f6e\u578b\u201d\u7ed3\u6784\uff0c\u662f\u6700\u7b80\u5355\u7684FIR\u6ee4\u6ce2\u5668\u7ed3\u6784\u3002\u5b83\u7531\u4e00\u4e2a\u65f6\u949f\u9a71\u52a8\u7684\u5bc4\u5b58\u5668\u6570\u7ec4\u3001\u4e00\u7ec4\u7cfb\u6570\u4ee5\u53ca\u4e00\u4e9b\u52a0\u6cd5\u5668\u7ec4\u6210\u3002\u5728\u8fd9\u79cd\u7ed3\u6784\u4e2d\uff0c\u6bcf\u4e2a\u8f93\u5165\u4fe1\u53f7\u901a\u8fc7\u4e00\u7cfb\u5217\u5ef6\u65f6\u5355\u5143(\u6807\u8bb0\u4e3az^-1)\uff0c\u7136\u540e\u4e0e\u76f8\u5e94\u7684\u62bd\u5934\u7cfb\u6570\u76f8\u4e58\uff0c\u5e76\u5c06\u6240\u6709\u4e58\u79ef\u76f8\u52a0\u5f97\u5230\u8f93\u51fa\u4fe1\u53f7\u3002<\/p>\n\n\n\n

\u3000\u3000\u7ea7\u8054\u578b\u7ed3\u6784\u662f\u5c06\u591a\u4e2a\u8f83\u5c0f\u7684\u6ee4\u6ce2\u5668\u7ea7\u8054\u8d77\u6765\uff0c\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u6ee4\u6ce2\u6548\u679c\u3002\u8fd9\u79cd\u7ed3\u6784\u7684\u4f18\u70b9\u662f\u53ef\u4ee5\u7075\u6d3b\u7ec4\u5408\u4e0d\u540c\u7279\u6027\u7684\u6ee4\u6ce2\u5668\uff0c\u4f46\u5b9e\u73b0\u590d\u6742\u5ea6\u8f83\u9ad8\u3002<\/p>\n\n\n\n

\u3000\u3000\u9891\u7387\u62bd\u6837\u578b\u7ed3\u6784\u901a\u8fc7\u5728\u7279\u5b9a\u9891\u7387\u70b9\u4e0a\u91c7\u6837\u7cfb\u7edf\u7684\u51b2\u6fc0\u54cd\u5e94\u6765\u5b9e\u73b0\u6ee4\u6ce2\u529f\u80fd\u3002\u8be5\u65b9\u6cd5\u5177\u6709\u8f83\u597d\u7684\u7075\u6d3b\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u589e\u52a0\u8ba1\u7b97\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u5e76\u884c\u578b\u7ed3\u6784\u5c06\u5177\u6709\u5bf9\u79f0\u7cfb\u6570\u7684\u8f93\u5165\u6570\u636e\u8fdb\u884c\u7d2f\u52a0\uff0c\u4f7f\u7528\u591a\u4e2a\u4e58\u6cd5\u5668\u540c\u65f6\u8fdb\u884c\u8fd0\u7b97\uff0c\u4ece\u800c\u63d0\u9ad8\u5904\u7406\u901f\u5ea6\u3002\u4e0d\u8fc7\uff0c\u8fd9\u79cd\u7ed3\u6784\u9700\u8981\u66f4\u591a\u7684\u786c\u4ef6\u8d44\u6e90\u3002<\/p>\n\n\n\n

\u3000\u3000FIR\u6ee4\u6ce2\u5668\u7684\u57fa\u672c\u7ed3\u6784\u4e3b\u8981\u5305\u62ec\u76f4\u63a5\u578b\u3001\u7ea7\u8054\u578b\u3001\u9891\u7387\u62bd\u6837\u578b\u548c\u5e76\u884c\u578b\u7b49\u51e0\u79cd\u5f62\u5f0f\uff0c\u6bcf\u79cd\u7ed3\u6784\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u7f3a\u70b9\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 \u7ea7\u8054\u578bFIR\u6ee4\u6ce2\u5668\u7684\u8bbe\u8ba1\u548c\u4f18\u5316\u7b56\u7565\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n

\u3000\u3000\u7ea7\u8054\u578bFIR\u6ee4\u6ce2\u5668\u7684\u8bbe\u8ba1\u548c\u4f18\u5316\u7b56\u7565\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n

\u3000\u3000\u91c7\u7528\u591a\u7ea7\u7ed3\u6784\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u6ee4\u6ce2\u5668\u7684\u9636\u6570\uff0c\u4ece\u800c\u51cf\u5c11\u8ba1\u7b97\u91cf\u548c\u5b58\u50a8\u7a7a\u95f4\u9700\u6c42\u3002\u6b64\u5916\uff0c\u591a\u7ea7\u7ed3\u6784\u8fd8\u80fd\u63d0\u9ad8\u6ee4\u6ce2\u5668\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\uff0c\u51cf\u5c11\u8ba1\u7b97\u8bef\u5dee\u548c\u91cf\u5316\u8bef\u5dee\u7684\u7d2f\u79ef\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728FIR\u6ee4\u6ce2\u5668\u7684\u8bbe\u8ba1\u4e2d\uff0c\u6709\u591a\u79cd\u7b56\u7565\u88ab\u5e7f\u6cdb\u91c7\u7528\uff0c\u5305\u62ec\u5e76\u884c\u7ed3\u6784\u3001\u6d41\u6c34\u7ebf\u7ed3\u6784\u548c\u5206\u5e03\u5f0f\u7ed3\u6784\u3002\u8fd9\u4e9b\u8bbe\u8ba1\u65e8\u5728\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\uff0c\u6ee1\u8db3\u5b9e\u65f6\u4fe1\u53f7\u5904\u7406\u7684\u9700\u6c42\u3002\u7279\u522b\u662f\u6d41\u6c34\u7ebf\u7ed3\u6784\uff0c\u80fd\u591f\u6709\u6548\u63d0\u5347\u5b9e\u65f6\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u9488\u5bf9\u6ee4\u6ce2\u5668\u7ec4\u7cfb\u7edf\u786c\u4ef6\u5b9e\u73b0\u65f6\u539f\u578b\u6ee4\u6ce2\u5668\u7684\u6709\u9650\u5b57\u957f\u6548\u5e94\u95ee\u9898\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u9879\u5f0f\u53c2\u6570\u5316\u65b9\u6cd5\u5bf9\u820d\u5165\u566a\u58f0\u589e\u76ca\u8868\u8fbe\u5f0f\u8fdb\u884c\u63a8\u5bfc\uff0c\u5e76\u5229\u7528\u7ed3\u6784\u4f18\u5316\u6765\u6539\u5584\u7531\u4fe1\u53f7\u91cf\u5316\u5f15\u8d77\u7684\u820d\u5165\u566a\u58f0\uff0c\u5373\u964d\u4f4e\u820d\u5165\u566a\u58f0\u589e\u76ca\u3002<\/p>\n\n\n\n

\u3000\u3000\u7c92\u5b50\u7fa4\u4f18\u5316\u7b97\u6cd5\u662f\u4e00\u79cd\u6709\u6548\u7684\u591a\u53c2\u6570\u4f18\u5316\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4e8e\u8bbe\u8ba1FIR\u6570\u5b57\u6ee4\u6ce2\u5668\u3002\u901a\u8fc7\u5c06\u6ee4\u6ce2\u5668\u8bbe\u8ba1\u95ee\u9898\u8f6c\u5316\u4e3a\u4e00\u4e2a\u4f18\u5316\u95ee\u9898\uff0c\u5229\u7528PSO\u7b97\u6cd5\u8fdb\u884c\u6c42\u89e3\uff0c\u4ee5\u83b7\u5f97\u6700\u4f18\u7684\u6ee4\u6ce2\u5668\u7cfb\u6570\u3002<\/p>\n\n\n\n

\u3000\u3000\u9057\u4f20\u7b97\u6cd5\u5728FIR\u6ee4\u6ce2\u5668\u8bbe\u8ba1\u4e2d\u7684\u5e94\u7528\u4e5f\u5341\u5206\u5e7f\u6cdb\uff0c\u7279\u522b\u662f\u5728\u52a0\u6743\u5207\u6bd4\u96ea\u592b\u6700\u4f73\u903c\u8fd1\u51c6\u5219\u4f18\u5316\u8bbe\u8ba1\u65b9\u6cd5\u4e2d\u3002\u901a\u8fc7\u5bf9\u57fa\u672c\u9057\u4f20\u7b97\u6cd5\u8fdb\u884c\u9002\u5f53\u6539\u8fdb\uff0c\u7528\u4e8e\u786e\u5b9a\u5f85\u6c42FIR\u6570\u5b57\u4f4e\u901a\u6ee4\u6ce2\u5668\u7684\u6700\u4f18\u53c2\u6570\u3002<\/p>\n\n\n\n

\u3000\u3000\u5bf9\u4e8e\u6781\u7a84\u5e26\u6ee4\u6ce2\u5668\u7684\u8bbe\u8ba1\u8981\u6c42\uff0c\u53ef\u4ee5\u91c7\u7528\u57fa\u4e8e\u63d2\u503cFIR\u6ee4\u6ce2\u5668\u7684\u4f18\u5316\u53c2\u6570\u4ee5\u53ca\u7ea7\u8054\u79ef\u5206\u68b3\u72b6(CIC)\u6ee4\u6ce2\u5668\u7684\u6027\u80fd\u66f2\u7ebf\u3002\u5728FPGA\u5b9e\u73b0\u4e2d\u8fdb\u884c\u8d44\u6e90\u5bf9\u6bd4\uff0c\u9009\u62e9\u6700\u4f18\u65b9\u6848\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728FIR\u6ee4\u6ce2\u5668\u7684\u8bbe\u8ba1\u4e2d\uff0c\u5c42\u6b21\u5316\u3001\u6a21\u5757\u5316\u7684\u8bbe\u8ba1\u601d\u60f3\u88ab\u5e7f\u6cdb\u5e94\u7528\u3002\u4f8b\u5982\uff0c\u5728\u57fa\u4e8eFPGA\u7684FIR\u6570\u5b57\u6ee4\u6ce2\u5668\u8bbe\u8ba1\u4e2d\uff0c\u5206\u522b\u5b9e\u73b0\u4e86\u7ea7\u8054\u65b9\u5f0f\u5b9e\u73b0\u4e0d\u540c\u9636\u6570\u7684\u7ebf\u6027FIR\u4f4e\u901a\u6ee4\u6ce2\u5668\uff0c\u5e76\u5bf9\u4e24\u79cd\u65b9\u5f0f\u8fdb\u884c\u4e86\u6027\u80fd\u6bd4\u8f83\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u9891\u7387\u62bd\u6837\u578bFIR\u6ee4\u6ce2\u5668\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u8868\u73b0\u5982\u4f55<\/h2>\n\n\n\n

\u3000\u3000\u9891\u7387\u62bd\u6837\u578bFIR\u6ee4\u6ce2\u5668\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u8868\u73b0\u51fa\u8272\uff0c\u5177\u6709\u8bb8\u591a\u663e\u8457\u7684\u4f18\u52bf\u3002\u9996\u5148\uff0cFIR\u6ee4\u6ce2\u5668\u56e0\u5176\u5168\u96f6\u70b9\u7ed3\u6784\u800c\u6c38\u8fdc\u7a33\u5b9a\uff0c\u8fd9\u610f\u5473\u7740\u65e0\u8bba\u8f93\u5165\u4fe1\u53f7\u5982\u4f55\u53d8\u5316\uff0c\u7cfb\u7edf\u90fd\u4e0d\u4f1a\u51fa\u73b0\u4e0d\u7a33\u5b9a\u7684\u60c5\u51b5\u3002\u5176\u6b21\uff0cFIR\u6ee4\u6ce2\u5668\u5177\u6709\u7cbe\u786e\u7684\u7ebf\u6027\u76f8\u4f4d\u7279\u6027\uff0c\u5728\u6709\u6548\u9891\u7387\u8303\u56f4\u5185\u6240\u6709\u4fe1\u53f7\u76f8\u4f4d\u4e0a\u4fdd\u6301\u4e0d\u53d8\uff0c\u8fd9\u4f7f\u5f97\u5b83\u4eec\u5728\u9700\u8981\u65f6\u95f4\u4e0d\u53d8\u6027\u7684\u5e94\u7528\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e0e\u5176\u4ed6\u7c7b\u578b\u7684\u6ee4\u6ce2\u5668\u76f8\u6bd4\uff0cFIR\u6ee4\u6ce2\u5668\u6709\u4ee5\u4e0b\u51e0\u4e2a\u4f18\u52bf\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u3000\u7a33\u5b9a\u6027<\/strong>\uff1a\u7531\u4e8e\u5176\u5168\u96f6\u70b9\u7ed3\u6784\uff0cFIR\u6ee4\u6ce2\u5668\u603b\u662f\u7a33\u5b9a\u7684\uff0c\u4e0d\u4f1a\u56e0\u4e3a\u6781\u70b9\u8fdb\u5165\u5355\u4f4d\u5706\u800c\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u6613\u4e8e\u8bbe\u8ba1\u548c\u5b9e\u73b0<\/strong>\uff1aFIR\u6ee4\u6ce2\u5668\u7684\u8bbe\u8ba1\u76f8\u5bf9\u7b80\u5355\uff0c\u53ef\u4ee5\u901a\u8fc7\u6570\u5b57\u57df\u8fdb\u884c\u5b9e\u73b0\uff0c\u5e76\u4e14\u53ef\u4ee5\u91c7\u7528\u9ad8\u5ea6\u4f18\u5316\u7684\u4f53\u7cfb\u7ed3\u6784\uff0c\u975e\u5e38\u9002\u5408\u786c\u4ef6\u5b9e\u73b0\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u901a\u5e26\u548c\u963b\u5e26\u7279\u6027\u6613\u4e8e\u63a7\u5236<\/strong>\uff1a\u901a\u8fc7\u8c03\u6574\u6ee4\u6ce2\u5668\u7cfb\u6570\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u63a7\u5236FIR\u6ee4\u6ce2\u5668\u7684\u901a\u5e26\u548c\u963b\u5e26\u7279\u6027\uff0c\u4ece\u800c\u6ee1\u8db3\u4e0d\u540c\u7684\u8bbe\u8ba1\u8981\u6c42\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u5e7f\u6cdb\u7684\u5e94\u7528\u9886\u57df<\/strong>\uff1aFIR\u6ee4\u6ce2\u5668\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u97f3\u9891\u5904\u7406\u3001\u56fe\u50cf\u5904\u7406\u3001\u901a\u4fe1\u7cfb\u7edf\u7b49\u9886\u57df\uff0c\u80fd\u591f\u6709\u6548\u5730\u53bb\u9664\u566a\u97f3\u3001\u63d0\u53d6\u611f\u5174\u8da3\u7684\u9891\u7387\u6210\u5206\uff0c\u5b9e\u73b0\u4fe1\u53f7\u7684\u589e\u5f3a\u548c\u91cd\u6784\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u3000\u76f8\u6bd4\u4e4b\u4e0b\uff0cIIR\u6ee4\u6ce2\u5668\u867d\u7136\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u63d0\u4f9b\u66f4\u9661\u5ced\u7684\u6ee4\u6ce2\u7279\u6027\u548c\u8f83\u9ad8\u7684\u6548\u7387\uff0c\u4f46\u5176\u7cfb\u7edf\u53ef\u80fd\u4e0d\u7a33\u5b9a\uff0c\u4e14\u5bf9\u521d\u59cb\u6761\u4ef6\u654f\u611f\uff0c\u8fd9\u9650\u5236\u4e86\u5176\u5728\u4e00\u4e9b\u5e94\u7528\u573a\u666f\u4e2d\u7684\u4f7f\u7528\u3002<\/p>\n\n\n\n

    \u3000\u3000\u4e09\u3001 \u5e76\u884c\u578bFIR\u6ee4\u6ce2\u5668\u5728\u786c\u4ef6\u8d44\u6e90\u6d88\u8017\u65b9\u9762\u7684\u6bd4\u8f83<\/h2>\n\n\n\n

    \u3000\u3000\u5e76\u884c\u578bFIR\u6ee4\u6ce2\u5668\u5728\u786c\u4ef6\u8d44\u6e90\u6d88\u8017\u65b9\u9762\u7684\u6bd4\u8f83\u7814\u7a76\u4e3b\u8981\u96c6\u4e2d\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n

    \u3000\u30001. \u4e58\u6cd5\u5668\u548c\u52a0\u6cd5\u5668\u7684\u4f7f\u7528<\/strong>\uff1a<\/h3>\n\n\n\n

    \u3000\u3000\u4f20\u7edf\u5e76\u884cFIR\u6ee4\u6ce2\u5668\u9700\u8981\u8f83\u591a\u7684\u4e58\u6cd5\u5668\u548c\u52a0\u6cd5\u5668\u3002\u4f8b\u5982\uff0c64\u9636\u7684\u5e76\u884cFIR\u6ee4\u6ce2\u5668\u9700\u89814096\u4e2a\u4e58\u6cd5\u5668\u548c64\u4e2a\u52a0\u6cd5\u5668\u3002<\/p>\n\n\n\n

    \u3000\u3000\u4f18\u5316\u540e\u7684\u5feb\u901fFIR\u5e76\u884c\u6ee4\u6ce2\u5668\u5219\u663e\u8457\u51cf\u5c11\u4e86\u4e58\u6cd5\u5668\u7684\u6570\u91cf\uff0c\u598264\u9636\u7684\u5feb\u901fFIR\u6ee4\u6ce2\u5668\u4ec5\u9700729\u4e2a\u4e58\u6cd5\u5668\u548c2238\u4e2a\u52a0\u6cd5\u5668\uff0c\u5927\u5927\u8282\u7701\u4e86\u4e58\u6cd5\u5668\u8d44\u6e90\u3002<\/p>\n\n\n\n

    \u3000\u30002. \u89e6\u53d1\u5668\u548c\u5b58\u50a8\u5668\u8d44\u6e90\u7684\u8282\u7701<\/strong>\uff1a<\/h3>\n\n\n\n

    \u3000\u3000\u4f7f\u7528\u7279\u5b9a\u7684\u8bbe\u8ba1\u65b9\u6cd5\u53ef\u4ee5\u51cf\u5c11\u89e6\u53d1\u5668\u548c\u53cc\u53e3RAM\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u4ece\u800c\u8282\u7701\u8d44\u6e90\u3002\u4f8b\u5982\uff0c\u674e\u6d77\u519b\u63d0\u51fa\u4e86\u4e00\u79cd\u8282\u7701\u89e6\u53d1\u5668\u548c\u53cc\u53e3RAM\u8d44\u6e90\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n

    \u3000\u30003. \u7b97\u6cd5\u7ed3\u6784\u7684\u6539\u8fdb<\/strong>\uff1a<\/h3>\n\n\n\n

    \u3000\u3000\u57fa\u4e8e\u524d\u9988\u53cd\u9988\u81ea\u9002\u5e94\u6ee4\u6ce2\u5668(FFA)\u76842n\u5e76\u884cFIR\u7b97\u6cd5\uff0c\u968f\u7740\u5e76\u884c\u5ea6\u7684\u589e\u52a0\uff0c\u76f8\u5bf9\u4e8e\u4f20\u7edf\u65b9\u5f0f\u5c06\u8282\u7701\u66f4\u591a\u7684\u4e58\u6cd5\u5668\u8d44\u6e90\u3002<\/p>\n\n\n\n

    \u3000\u3000\u8f6c\u7f6eFIR\u6ee4\u6ce2\u5668\u76f8\u6bd4\u5e76\u884cFIR\u6ee4\u6ce2\u5668\u5177\u6709\u66f4\u5c0f\u7684\u5ef6\u8fdf\uff0c\u5e76\u4e14\u80fd\u8282\u7701FPGA\u8d44\u6e90\u3002<\/p>\n\n\n\n

    \u3000\u30004. \u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u8d44\u6e90\u6d88\u8017\u5bf9\u6bd4<\/strong>\uff1a<\/h3>\n\n\n\n

    \u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f8b\u5982\u5fae\u578bSAR\u6570\u5b57\u4e0b\u53d8\u9891\u8bbe\u8ba1\u4e2d\uff0c\u5feb\u884cFIR\u6ee4\u6ce2\u5668\u6bd4\u5e76\u884cFIR\u6ee4\u6ce2\u5668\u6240\u7528\u7684\u8d44\u6e90\u5c11\u7ea612%\uff0c\u5c3d\u7ba1\u8fd9\u79cd\u51cf\u5c11\u5e76\u4e0d\u5341\u5206\u660e\u663e\u3002<\/p>\n\n\n\n

    \u3000\u3000\u901a\u8fc7\u91c7\u7528\u4f18\u5316\u7b97\u6cd5\u3001\u6539\u8fdb\u8bbe\u8ba1\u7ed3\u6784\u4ee5\u53ca\u5229\u7528\u7279\u5b9a\u7684\u786c\u4ef6\u7279\u6027\uff0c\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u5e76\u884c\u578bFIR\u6ee4\u6ce2\u5668\u5728FPGA\u5b9e\u73b0\u4e2d\u7684\u786c\u4ef6\u8d44\u6e90\u6d88\u8017\u3002<\/p>\n\n\n\n

    \u3000\u3000\u56db\u3001 FIR\u6ee4\u6ce2\u5668\u7684\u5355\u4f4d\u8109\u51b2\u54cd\u5e94\u7279\u6027\u5bf9\u5176\u6027\u80fd\u7684\u5f71\u54cd\u53ca\u5176\u4f18\u5316\u65b9\u6cd5<\/h2>\n\n\n\n

    \u3000\u3000FIR\u6ee4\u6ce2\u5668(\u6709\u9650\u8109\u51b2\u54cd\u5e94\u6ee4\u6ce2\u5668)\u7684\u5355\u4f4d\u8109\u51b2\u54cd\u5e94\u7279\u6027\u5bf9\u5176\u6027\u80fd\u6709\u663e\u8457\u5f71\u54cd\u3002\u5355\u4f4d\u8109\u51b2\u54cd\u5e94h(n)\u51b3\u5b9a\u4e86\u6ee4\u6ce2\u5668\u7684\u9891\u7387\u54cd\u5e94\u548c\u76f8\u4f4d\u7279\u6027\uff0c\u56e0\u6b64\u4f18\u5316\u5355\u4f4d\u8109\u51b2\u54cd\u5e94\u53ef\u4ee5\u663e\u8457\u6539\u5584\u6ee4\u6ce2\u5668\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n

    \u3000\u30001. \u5355\u4f4d\u8109\u51b2\u54cd\u5e94\u5bf9FIR\u6ee4\u6ce2\u5668\u6027\u80fd\u7684\u5f71\u54cd<\/h3>\n\n\n\n

    \u3000\u3000\u5355\u4f4d\u8109\u51b2\u54cd\u5e94\u51b3\u5b9a\u4e86\u6ee4\u6ce2\u5668\u7684\u5e45\u5ea6\u7279\u6027\u548c\u8870\u8017\u7279\u6027\u3002\u901a\u8fc7\u4f18\u5316\u5355\u4f4d\u8109\u51b2\u54cd\u5e94\uff0c\u53ef\u4ee5\u5728\u4fdd\u6301\u76f8\u540c\u9636\u6570\u7684\u60c5\u51b5\u4e0b\u83b7\u5f97\u6700\u4f73\u7684\u9891\u7387\u7279\u6027\u548c\u8870\u8017\u7279\u6027\u3002<\/p>\n\n\n\n

    \u3000\u3000FIR\u6ee4\u6ce2\u5668\u5177\u6709\u7ebf\u6027\u76f8\u4f4d\u7279\u6027\uff0c\u5373\u6240\u6709\u9891\u7387\u6210\u5206\u7684\u7fa4\u5ef6\u8fdf\u76f8\u540c\u3002\u8fd9\u79cd\u7279\u6027\u4f7f\u5f97FIR\u6ee4\u6ce2\u5668\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u907f\u514d\u4e86\u76f8\u4f4d\u5931\u771f\u95ee\u9898\u3002<\/p>\n\n\n\n

    \u3000\u3000\u7a97\u51fd\u6570\u7684\u9009\u62e9\u76f4\u63a5\u5f71\u54cd\u5230\u6ee4\u6ce2\u5668\u7684\u8fc7\u6e21\u5e26\u5bbd\u5ea6\u548c\u65c1\u74e3\u6c34\u5e73\u3002\u9009\u62e9\u5408\u9002\u7684\u7a97\u51fd\u6570\u5f62\u72b6\u53ef\u4ee5\u6539\u5584\u6ee4\u6ce2\u5668\u7684\u8fc7\u6e21\u5e26\u9661\u5ced\u5ea6\u548c\u964d\u4f4e\u65c1\u74e3\u6c34\u5e73\uff0c\u4ece\u800c\u63d0\u9ad8\u6ee4\u6ce2\u6548\u679c\u3002<\/p>\n\n\n\n

    \u3000\u30002. \u5355\u4f4d\u8109\u51b2\u54cd\u5e94\u7684\u4f18\u5316\u65b9\u6cd5<\/h3>\n\n\n\n

    \u3000\u3000\u7a97\u51fd\u6570\u6cd5\u662f\u8bbe\u8ba1FIR\u6ee4\u6ce2\u5668\u7684\u4e00\u79cd\u5e38\u7528\u65b9\u6cd5\uff0c\u901a\u8fc7\u6539\u53d8\u7a97\u51fd\u6570\u7684\u5f62\u72b6\u6765\u6539\u5584\u6ee4\u6ce2\u5668\u7684\u7279\u6027\u3002\u5e38\u7528\u7684\u7a97\u51fd\u6570\u5305\u62ec\u6c49\u5b81\u7a97\u3001\u6d77\u660e\u7a97\u3001\u5e03\u83b1\u514b\u66fc\u7a97\u7b49\u3002\u7a97\u51fd\u6570\u7684\u4e3b\u8981\u8981\u6c42\u662f\u4e3b\u74e3\u5bbd\u5ea6\u8981\u7a84\u4ee5\u83b7\u5f97\u8f83\u9661\u7684\u8fc7\u6e21\u5e26\uff0c\u540c\u65f6\u65c1\u74e3\u76f8\u5bf9\u4e8e\u4e3b\u74e3\u5e45\u5ea6\u8981\u5c0f\u3002<\/p>\n\n\n\n

    \u3000\u3000remez\u7b97\u6cd5\u662f\u4e00\u79cd\u7b49\u6ce2\u7eb9\u6700\u4f73\u903c\u8fd1\u6cd5\uff0c\u7528\u4e8e\u8bbe\u8ba1\u5177\u6709\u6700\u4f18\u5e45\u5ea6\u7279\u6027\u7684FIR\u6ee4\u6ce2\u5668\u3002\u8be5\u7b97\u6cd5\u901a\u8fc7\u8fed\u4ee3\u8ba1\u7b97\u5f97\u5230\u6ee4\u6ce2\u5668\u7684\u5355\u4f4d\u8109\u51b2\u54cd\u5e94h(n)\uff0c\u4ee5\u6ee1\u8db3\u7ed9\u5b9a\u7684\u5e45\u5ea6\u89c4\u683c\u3002<\/p>\n\n\n\n

    \u3000\u3000\u6539\u8fdb\u7684\u683c\u578b\u7ed3\u6784\u53ef\u4ee5\u51cf\u5c11\u56e0FWL\u6548\u5e94\u5bfc\u81f4\u7684\u6ee4\u6ce2\u5668\u7cfb\u6570\u8bef\u5dee\uff0c\u4ece\u800c\u63d0\u9ad8\u6ee4\u6ce2\u5668\u7684\u6027\u80fd\u3002\u6539\u8fdb\u540e\u7684\u683c\u578b\u7ed3\u6784\u5728\u91cf\u5316\u5b57\u957f\u7ea6\u675f\u4e0b\uff0c\u9891\u54cd\u66f2\u7ebf\u66f4\u63a5\u8fd1\u7406\u60f3\u72b6\u6001\uff0c\u6709\u6548\u6539\u5584\u4e86\u6ee4\u6ce2\u5668\u6027\u80fd\u4e0b\u964d\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n

    \u3000\u3000\u7ed3\u5408\u7cfb\u6570\u884c\u516c\u5171\u9879\u4f18\u5316\u548c\u5217\u516c\u5171\u9879\u4f18\u5316\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u964d\u4f4eFIR\u6ee4\u6ce2\u5668\u7684\u6210\u672c\u5e76\u63d0\u5347\u5176\u6027\u80fd\u3002\u8fd9\u79cd\u65b9\u6cd5\u9996\u5148\u5c06\u7cfb\u6570\u7528CSD\u6cd5\u8868\u793a\uff0c\u7136\u540e\u8fdb\u884c\u77e9\u9635\u4f18\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    FIR\u6ee4\u6ce2\u5668(Finite Impulse Response Filter\uff0c\u6709\u9650\u8109\u51b2\u54cd\u5e94\u6ee4\u6ce2\u5668)\u662f\u4e00\u79cd\u975e\u9012\u5f52\u578b\u6570\u5b57\u6ee4\u6ce2\u5668\uff0c\u5176\u57fa\u672c\u7ed3\u6784\u53ef\u4ee5\u5206\u4e3a\u51e0\u79cd\u7c7b\u578b\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5e38\u89c1\u7684FIR\u6ee4\u6ce2\u5668\u7ed3\u6784<\/p>\n","protected":false},"author":1,"featured_media":93298,"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":[285],"class_list":["post-96094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-lbq"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/96094","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=96094"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/96094\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/93298"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=96094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=96094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=96094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}