varying-stress amplitude

The principle of the envelop demodulating technique for time varying amplitude modulation signals was described, and the demodulating performance of the cyclic autocorrelation function was discussed.

介绍包络解调技术在幅值调制信号分析中的工作原理，同时讨论了循环自相关函数的解调性能。

Suppression of Time-varying Amplitude LFM Interference in DSSS Communication

直扩通信中时变幅度LFM干扰的抑制

Spatial evolutionary spectrum distribution is derived and used to estimate direction of signals which have constant or time-varying amplitude.

建立了空间演变谱分布，适用于恒幅和时变幅度的FM信号到达角估计。

A new spatial polarimetric t-f ( SPTF) distribution was presented based evolutionary periodogram of chirp signals of time-varying amplitude.

同时，基于时变幅度Chirp信号的空间演化谱，提出了一种新的空间极化时频分布，用此空间极化时频矩阵代替自相关矩阵估计信号子空间和噪声子空间。

It is well known that there is apparent inconsistence or paradox in the conventional theory of laser optics due to the assumed paraxial approximation or assumption of slowly varying amplitude.

众所周知，传统激光光学理论，由于采用了傍轴近似或缓变振幅近似，存在明显的不自洽性和佯谬；