c4_5_5.c

dsp入门与实践一书的源代码

void fir8(short x[], short h[], short y[], int N, int M)
		{
			int i, j, sum;
			for (j = 0; j < M; j++) 
			{
				sum = 0;
				for (i = 0; i < N; i++)
					sum += x[i + j] * h[i];
				y[j] = sum >> 15;
			}
		}