摘要
本文讨论了在声学应答测距和相位测量中,时间和相位测量的随机误差与信噪比之间的关系,给出了时间测量的均方根误差:σ_t=2/(πB)[(A^2)/N]^(-1/2),以及在各向同性的限带白噪声场中鉴相信号的均方根误差为:σ_(?)=[(BNo)/(A^2)]^(1/2)。
A discussion is made on the relationship between the random error of the time and phase measurements and the signal-to-noise ratio when range and phase are determined by an acoustic transponder. The rms error of time measurements is given and the rms error of phase-descri-minating signal. in a homogenuous limited band white noise field is slso provided.
出处
《海洋技术》
1989年第2期36-40,共5页
Ocean Technology
