echo return中文什么意思

回声返回

混响输入

• echo:    n. (pl. echoes) 1. ...
• return:    vi. 1.回转，回来，回去，返回， ...
• echo balance return loss:    回波平衡返程损耗

例句与用法

1. The thesis reviews the theory which is the basis of synthetic aperture processing and introduces five algorithms of image reconstruction : the coherent addition provides a good opportunity for the real time sas ; the envelope processing can work when sonar echo returns lack phase coherence ; the i - q processing can reduce the sampling rate ; the broadband and ctfm processing are both aimed to increase the sas mapping rate
   讨论了用于重构图象的五种算法，包括简单的可进行实时处理的相关合成法，可以在缺乏相位信息时使用的包络处理法，可以降低采样率、减少运算量、存储量的正交处理法，可以提高声纳运行速度，从而提高成象率的宽带处理法和ctfm法等五种算法。