But when the frequency of components is too near, HHT cannot shift the narrowbandsignal because of mode confusion.
但由于模态混淆，当信号组合分量的频率太接近时，HHT常不能正确分解窄带信号。
2
In contrast to narrowbandsignal processing, wideband signal processing can result in the worsening of digital range, sensitivity and multiple signals processing, etc.
相对于窄带而言，宽带会导致数字动态、灵敏度、多信号处理等变差。
3
Computer simulation shows that the DOA estimation algorithm based on CS theory can estimate accurately the narrowbandsignal DOA information in relatively small samples case.