X波段船用导航雷达四通道接收机的研究和设计

Research and design of the X-band four-channelreceiver for marine navigation radars

导航雷达是一种相当成熟和广泛使用的船用设备,但多采用单通道接收技术,其功能简单,精度不高;而采用多通道接收机和先进信号处理技术的新型导航雷达,具有高精度,多功能,兼具超视距(利用大气波导效应)和能够探测超低空飞行器等优点。本文结合实际产品的研制过程,提出了新型雷达的多通道接收机的设计指标,阐述了原理,并对多个关键指标进行了理论分析,最后给出了产品的研制结论。

The navigation radar is a fairly mature and widely used marine equipment.But it mostly uses single-channel receiving technology which has simple functions and low accuracy;while a new type of navigation radar which uses multi-channel receiver and advanced signal processing technology has the advantages of high accuracy,multi-function,both beyond-line-of-sight(using the atmospheric duct effect)and the ability to detect ultra-low altitude aircraft.Based on development of the actual products,this paper puts forward the design specifications and functional block diagram of the multi-channel receiver for new kinds of radars,and conducts theoretical analysis of multiple key indexes.Finally,the product development conclusion is given.