Title :
Study on frequency-shifting jamming to linear frequency modulation pulse compression radars
Author :
Yang, Yong ; Zhang, Wen-ming ; Yang, Jian-hua
Author_Institution :
Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
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.
Keywords :
FM radar; jamming; matched filters; pulse compression; false target jamming; frequency mismatching; frequency-shifting deceptive jamming; linear frequency modulation pulse compression radars; matched filtering; multiple-cover jamming; multiple-false targets jamming; Chirp modulation; Delay effects; Filtering; Frequency; Jamming; Matched filters; Pulse compression methods; Radar; Signal analysis; Space vector pulse width modulation; frequency-shifting jamming; linear frequency modulation(LFM); matched filtering; multiple-cover jamming; mutiple-false targets;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371387