设计一个高通最优FIR滤波器，过渡带为1000-1500Hz,采样频率为8000Hz,通带纹波最大为0.001.绘图比较系数12位、14位量化以及无量化时的幅度响应曲线(A high pass FIR filter is designed. The transition band is 1000-1500Hz, the sampling frequency is 8000Hz and the maximum ripple is 0.001. The amplitude response curves of 12-bit, 14-bit quantization and non-quantization are plotted.)