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chengxu 按心电信号画出信号时域波形和频谱图
- 1．找点一段心电信号，画出信号时域波形和频谱图； 2. 利用MATLAB中的随机函数产生噪声加入到心电信号中，使心电信号被污染，读出污染后的号并画出对应信号的时域波形和频谱图； 3．用双线性变换法设计一个Butterworth带通滤波器，输出所设计的滤波器的阶次，分子、分母多项式的系数，画出滤波器的频率响应（幅频响应和相频响应）曲线；（也可以根据自己需要设置滤波器性能指标） 带通通滤波器设计性能指标：fs1=10Hz, fp1=20Hz, fp1=1000Hz, fs2=120
matlab
- 自适应的最小均方算法：只要自适应线性组合器每次迭代运算时都知道输入信号和参考响应，选用LMS算法很合适。-Adaptive least mean square (LMS) algorithm: as long as the adaptive linear combiner for each iteration when they know that the input signal and reference response, selection of LMS algorithm is ver
fir
- FIR函数通过定义的系数和延时线来实现有限脉冲响应FIR滤波器。该函数产生了对输入数据的响应。该过滤器（通带，阻带等特点）由系数和抽头数决定。-FIR function by defining the coefficients and delay line to achieve the finite impulse response FIR filter. The function of the input data generated response. The filter (passban
CS_OMP
- 压缩感知的恢复算法，包含了ROMP程序，是OMP算法的改进算法-Compressed sensing response algorithms, including ROMP program
CQMFB
- 设计一CQMFB，低通滤波器H0 (z)来自一半带滤波器。该半带滤波器的长度为47，通带截至频率ωp = 0.42 π，试给出H0 (z)，H1(z)，G0(z)， G1(z)的幅频响应，单位抽样响应并画图。-The design a CQMFB, the low-pass filter H0 (z) from the half band filter. The length of the half-band filter 47, the passband cutoff frequency ωp
eg6_hn
- 使用脉冲响应不变法设计巴特沃斯低通滤波器。-Using the impulse response is not political reform design butterworth low-pass filter.
signals-and-systems-matlab-
- MATLAB演示信号与系统课程里的相关性质。包括，sz平面映射极零图的响应及其对应关系的动画显示，二阶系统的阶跃响应，傅里叶变换性质，矩形波、锯齿波的傅里叶级数分解的动画演示-MATLAB demo signals and systems related to the nature of the curriculum. Including, sz mapping plane pole-zero diagram of response and correspondence between anim