In this case, time frequency analysis must be performed for every range cell to obtain range instantaneous Doppler (RID) image.
这时需要分距离单元进行时频分析，得到距离-瞬时多普勒图像。
2
The potential temporal hopping point set is fetched from the temporal projection variance of the adjacent domain time-frequency image according to the instantaneous signal bandwidth.
根据跳频信号瞬时带宽，将潜在跳频频率点邻域时频图投影到时域，分选潜在频率跳变点集合。
3
And we take the linear instantaneous mixtures as an example, and put it into realty in general signals, sound signals and image signals based on kurtosis.