Thorpe C W, Bates R H, Dawson S M
Electrical and Electronic Engineering Department, University of Canterbury, Christchurch, New Zealand.
J Acoust Soc Am. 1991 Dec;90(6):2931-4. doi: 10.1121/1.401767.
A sonar system's echolocation capabilities can be inferred from the ambiguity distribution (defined here in terms of the conventional signal response function) of each of its transmitted signals. Several records of sounds emitted by Hector's dolphin are analyzed. The computed ambiguity distributions indicate that the sonar clicks of Hector's dolphins should be capable of resolving the ranges of targets as close together as 2 cm apart, but that target velocities cannot be resolved to any useful degree from a single echo.
声纳系统的回声定位能力可以从其每个发射信号的模糊度分布（这里根据传统信号响应函数定义）推断出来。对赫氏海豚发出的声音的几份记录进行了分析。计算出的模糊度分布表明，赫氏海豚的声纳滴答声应该能够分辨相距仅2厘米的目标的距离，但从单个回声中无法有效地分辨目标速度。
