Study on frequency-shifting jamming to linear frequency modulation pulse compression radars

摘要

Aiming at the frequency-shifting deceptive jamming to linear frequency modulation pulse compression radars, this paper analyses the jammings caused by the three kinds of jamming signals, which are the single false target jamming, multiple-false targets jamming and multiple-cover jamming. It gives the mathematical expression of the jamming signals after matched filtering and shows the relationship between the frequency-shifting amount and the relative distance of the true and false targets. Besides it analyses the loss of the jamming energy caused by frequency mismatching and offers the theory support to the jammer when setting the jammer power. Finally the simulation is given and the results demonstrate the correctness of the theories.