A matlab source code to obtain image stitcing of two images using bilinear interpolation

录制一段个人的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用双线性变换法和窗函数法设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；最后，设计一个信号处理系统界面。-Record a personal voice signal, and recording the signal is sampled draw sampled

根据性能指标设计一个巴特沃斯低通模拟滤波器，通过双线性变换将该模拟滤波器转变为数字滤波器，并进行matlab仿真 -Design a Butterworth low-pass analog filter based on performance indicators, through the the bilinear transform the analog filter into a digital filter, and matlab simulation

了解和比较冲激不变滤波器、阶跃不变滤波器和双线性Z变换滤波器的幅度响应-Understand and compare the amplitude response of the impulse invariant filter, the step invariant filter and the bilinear Z transform filter