航海雷达测速方法的探讨

A new way of determine speed in navigational radar

为解决航海雷达运用多卜勒技术所负担的高造价的问题,提出了一种新的测速方法,这种方法基于多卜勒效应的利用,其核心是捕获多卜勒频率.该方法利用了功率谱密度和频率的对应关系,同时也利用了现有航海雷达信号检测已较为成熟之处.并设计了系统框图,分析了这种新方法的方便性和优越性.最后对该方法进行了验证计算,从中可看出,此种方法是一种简单可行的方法.

If we want to make use of Doppler technique of the ships in navigational radar, first we must get the Doppler frequency, but the related circuit is very complicated, therefore, the cost of the radar is very much. This dissertation is directed at the high cost to advance a new way of determining the speed of ships. The basis of the new way is Doppler effectiveness, and the centre of the way is a new way of getting Doppler frequency. The new way makes use of the relationship between power spectrum density and frequency. The dissertation sets forth to the principle of the new way, analyses the convenience and the advantage of the new way, and design the system picture.