相控阵雷达宽窄带测速匹配技术研究

针对宽带测速情况下有时无输出以及窄带测速跳谱线的问题,分析了两种现象产生的机理,并提出用窄带测速数据提高宽带测速精度的方法,解决了宽带波门套不住目标的现象,保证了宽带测速的连续输出;同时,为了解决窄带测速跳谱线带来的窄带测速模糊问题,提出了用宽带测速数据进行辅助判决的解决方法;最终,通过宽窄带测速数据相互匹配突破了工程应用中面临的技术难题,对提高雷达的测量精度和探测能力具有重要意义。

A Study on Matching Technology of Broadband and Narrowband Velocity Measurement in Phased Array Radar

The mechanisms of the phenomenons that sometimes there is no output for broadband velocity measurement and frequency spectrum line jumps for narrowband velocity measurement are analyzed in this paper, and a method of improving the precision of broadband velocity measurement by the data of narrowband velocity measurement is proposed. The problem that broadband gate can''t catch targets is solved and the output for broadband velocity measurement can be supplied continuously. Meanwhile, in order to avoid the ambiguity of narrowband velocity measurement, measurement decision-aided is done by using the data of broadband velocity measurement. The conclusion is that technical problems of velocity measurement in engineering application can be solved by the matching between the broadband and narrowband velocity measurement, and detection precision and ability of radars can be improved by this result.