model parameter extraction meaning in Chinese

模型参数萃取

For those biological signals like echo of bat or whale , as well as man - made system signals like radar or sonar signal , the instantaneous frequency of signal component contains important information and could be used for signal model parameters extraction . so that the proper choose of transformed domain and signal characteristic extraction method is of crucial important . the ridge extraction method used for signal characterization was first proposed in the 1990s , it ' s based on the study of the phase of the wavelet ( or other linear ) transform
对于许多实际的信号，如蝙蝠发出的超声波、鲸鱼的叫声等生物信号，以及雷达、声呐等人造系统产生的信号而言，信号瞬时频率的变化规律反映了信号重要的特征，并且也是信号模型中关键的参数，因此选择合适的变换域提取信号的瞬时频率信息，并选择合适的方法对信号进行重建是很重要的问题。