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- 用窗函数法设计一个能对模拟信号进行滤波的线性相位FIR低通滤波器。抽样频率为 kHz，通带截止频率为 kHz，阻带截止频率为 kHz，要求阻带最小衰减 dB。为了降低运算量，所设计滤波器的阶数要尽可能的低-With the window method to design a filter to the analog signals of linear phase FIR low-pass filter. Sampling frequency is kHz, passband cutoff fre
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- 用双线性变换法设计一个Butterworth低通滤波器，要求其通带截止频率100Hz，阻带截止频率200Hz，通带衰减小于2dB，阻带衰减大于15 dB，采样频率为500 Hz。-Using bilinear transformation to design a Butterworth low-pass filter, requiring that their pass-band cutoff frequency 100Hz, stopband cutoff frequency 200Hz, p
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- 计算序列x=[3 0 2 1 3 4 6] 和y=[3 0 -2 1 -3]的线性卷积-Calculation sequence x = [3 0 2 1 3 4 6] and y = [3 0-2 1-3] the linear convolution
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- 用FFT计算信号x=cos3pit+2sin12pi*t 的频谱-Calculated using FFT signal x = cos3pit+2 sin12pi* t of the spectrum
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- 1. 用双线性变换法设计一个巴特沃斯低通IIR数字滤波器。设计指标参数为：在通带内频率低于0.2π时，最大衰减小于1dB；在阻带内[0.3π, π]频率区间上，最小衰减大于15dB. 2.0.02π为采样间隔，打印出数字滤波器在频率区间[0, π/2]上的频率响应特性曲线。 3. 用所设计的滤波器对实际心电图信号采样序列进行仿真滤波处理，观察总结滤波作用与效果 附：心电图采样序列x(n) 人体心电图信号在测量过程中往往受到工业高频干扰，所以必须经过低通滤波处理后，才能作为判断心脏
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- Simple Fabrication of Metal-Based Piezoelectric MEMS by Direct Deposition of Pb(Zr,Ti)O3 Thin Films on Titanium Substrates
polarization
- 用梯形法求角向偏振光Z-R面的光场及相位分布-With the trapezoidal method for the angle to the surface of the optical field polarization ZR and phase distribution