在高分辨条件下，多周期积累时间内目标的运动会造成回波包络的跨单元走动，而距离走动带来了检测性能的下降。
In high range resolution conditions, the migration of moving target causes the migration of echo envelop within multicycle integration time and brings the decline of detection performance.
通过改变相对载波包络位相的数值可以获得更宽的频谱宽度及更高的光谱强度特别是高频分量的光谱强度。
By changing the number of relative carrier-envelope phase, broader spectral broadening and higher spectral intensity, especially the spectral intensity of high frequency components, can be obtained.
介绍了一种基于回波包络分析的高精度超声波测距方法。
This paper introduces an ultrasonic ranging method based on analyzing the envelope of echo .
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