The phase information of wavelet transform used in the algorithm is invariant with respect to flat fading, and can resist multipath fadingof frequency-selecting channel in quite a few degree.
The feature used in the algorithm is invariant with respect to flat fading, and can resist multipath fadingof frequency-selecting channel in quite a few degree.
算法所用特征对平坦衰落信道具有衰落不变性，对频率选择性衰落信道也具有很强的抗多径能力。
3
Contrast and judge the fading and or dirty degreeof colored specimen after firmness of dyeing test.