用加法器和乘法器实现y(n) = x(n) + y(n-3)的数字信号处理

\u6070\u6070\u8981\u5b9e\u73b0y(n) = x(n) + y(n-3)\uff0c\u53ef\u4ee5\u5206\u4e3a\u4e24\u6b65\u8fdb\u884c\u5b9e\u73b0\u3002\n\n\u7b2c\u4e00\u6b65\u662f\u5ef6\u65f6\u64cd\u4f5c\uff0c\u5c06y(n-3)\u5ef6\u65f63\u4e2a\u91c7\u6837\u5468\u671f\uff0c\u5f97\u5230y(n) = y(n-3)\u3002\n\n\u7b2c\u4e8c\u6b65\u662f\u52a0\u6cd5\u64cd\u4f5c\uff0c\u5c06x(n)\u4e0ey(n-3)\u76f8\u52a0\uff0c\u5f97\u5230y(n) = x(n) + y(n-3)\u3002\n\n\u5177\u4f53\u7684\u5b9e\u73b0\u6b65\u9aa4\u5982\u4e0b\uff1a\n\n1. \u4f7f\u75283\u4e2a\u5ef6\u65f6\u5668\uff0c\u5c06\u8f93\u5165x(n)\u5206\u522b\u5ef6\u65f63\u4e2a\u91c7\u6837\u5468\u671f\uff0c\u5f97\u5230x(n-3)\u3001x(n-2)\u3001x(n-1)\u3002\n2. \u4f7f\u75283\u4e2a\u52a0\u6cd5\u5668\uff0c\u5c06x(n)\u4e0ex(n-3)\u76f8\u52a0\uff0c\u5f97\u5230x(n) + x(n-3)\u3002\n3. \u4f7f\u75281\u4e2a\u5ef6\u65f6\u5668\uff0c\u5c06x(n) + x(n-3)\u5ef6\u65f63\u4e2a\u91c7\u6837\u5468\u671f\uff0c\u5f97\u5230x(n) + x(n-3)\u5ef6\u65f63\u4e2a\u91c7\u6837\u5468\u671f\u540e\u7684\u503c\u3002\n4. \u4f7f\u75281\u4e2a\u52a0\u6cd5\u5668\uff0c\u5c06y(n-3)\u4e0e\u201cx(n) + x(n-3)\u5ef6\u65f63\u4e2a\u91c7\u6837\u5468\u671f\u540e\u7684\u503c\u201d\u76f8\u52a0\uff0c\u5f97\u5230y(n) = x(n) + y(n-3)\u3002\n\n\u8fd9\u6837\u5c31\u5b9e\u73b0\u4e86y(n) = x(n) + y(n-3)\u7684\u8ba1\u7b97\u3002