Bispecra is a translation-invariant character, contain abundant phase information, but it is two dimension, and misfit board match.
双谱是一种平移不变的特征,含有丰富的相位信息,但它是二维函数,不利于模板匹配。
2
The phase information of wavelet transform used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.