For IIR, after researching Pulse Response Method, Step Response Method, BilinearTransform Method, Direct Design Method, it is found that IIR is unsatisfactory.
Si low pass filter is synthesized with si integrators based on bilineartransform. Thus, it provides a solution to manufacture integrated chip of time-domain CWT.
基于双线性变换采用开关电流积分器综合实现低通滤波器,解决了时域法小波变换实用电路集成化的关键问题。
3
Bilinear time-frequency transform possesses a high resolution both in the time domain and the frequency domain. It can be utilized to detect weak transient signal in complex background.