Analysis and Measurement of Jamming Suppression Coefficient and Jamming Exposure Area Against Pulse Compression Radar

Pulse compression radar is a kind of new radar which is developed according to the radar development requirements.It puts forward a new question to radar ECM,that is,How do people select the jamming suppression coefficient?So some academic discussions have been carried out,the key problem to which people have different points is whether the jamming suppression coefficient against pulse compression radar should be greater than the pulse compression coefficient of compression radar or not.This paper derives math model of the jamming suppression coefficient from basic radar equation,and uses three methods to calculate the jamming suppression coefficient against pulse compression radar.We measured the suppression coefficient required to suppress pulse compression radar,and calculated theoretically the jamming exposure area of the pulse compression radar onboard early warning aircraft.Also,we measured the exposure area.The computed and measured results are basically identical,which proves that the jamming suppression coefficient required to suppress pulse compression radar is less than the pulse compression coefficient of compression radar.This conclusion is valuable and important for the jammer design and its application in the war.