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由于声波传播速度较慢,常规的显示器,往往会产生回波图象的闪烁;随着距离量程的扩大,这种现象会越来越严重,因而无法仔细辨认回波的特征.本文介绍的声呐显示器的扫描变换系统,从根本上解决了声纳回波观察和眼睛视觉残留的矛盾,在一般显示器上就能够得到一个稳定清晰的回波图象,而且图象的质量不受作用距离量程转换的影响.本系统不仅适用于声呐显示器,对于回波冻结,以及单次回波或瞬变信号的观察,均为有效手段. 本系统全部采用国产组件,在使用上取得了良好结果.
Due to the slow propagation of sound waves, conventional displays tend to produce flicker of the echo image, which can become more and more severe as the distance scale expands, and therefore the characteristics of the echo can not be carefully identified. The scanning transformation system of the display fundamentally solves the contradiction between the sonar echo observation and the visual residue of the eye, and can obtain a stable and clear echo image on the general display, and the quality of the image is not affected by the range conversion The system is not only suitable for sonar display, but also an effective method for echo freezing and observation of single echo or transient signal.The system has all the domestic components and has achieved good results in use.