提出了一种新的基于随机衰减信号的谱分析方法以用于船模耐波性能分析。
A new spectral analysis method based on random decrement signature was presented for ship seakeeping performance analysis.
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。
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.
由于水下通信信道对光信号的衰减极大，实际通信系统的编码应具有极强纠随机差错和纠突发差错的能力。
Because of the enormous fading of the optical signal in underwater laser communication, the capacity of the error-correcting code must be well enough.
由于水下通信信道对光信号的衰减极大，实际通信系统的编码应具有极强纠随机差错和纠突发差错的能力。
Because of the enormous fading of the optical signal in underwater laser communication, the capacity of the error-correcting code must be well enough.
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