In this paper, a mathematical model is used to characterize this random signals, and a time averaging method is used for obtaining the ultrasonic attenuation coefficient.

本文提供了一种用于识别这类随机信号的数学统计模型，并介绍了一种时间平均法用来获取超声背散射信号的衰减系数。

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Along with the increase of the zenith Angle and height above ground of an optical transmitter, the extent of the time-averaging effect decreases.

随着接收终端离地高度和天顶角的增大，大气闪烁时间平滑作用降低。

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The show is the most-watched comedy in prime time averaging 15.2 million viewers.

FORBES: Sorry, Charlie, CBS Doesn't Really Need Two And A Half Men

As Forbes Dorothy Pomerantz reported last week, the show is the most-watched comedy in prime time averaging 15.2 million viewers.

FORBES: Charlie Sheen Hits Today Show, Demands 50% Raise From CBS

For real-time applications, averaging hundreds of readings simply won't work.

ECONOMIST: MONITOR