Realization of processing system for anti-interference signal based on multifrequency spread spectrum and hopping spectrum

Abstract

Current chirp radar systems both at home and abroad usually adopt an antijamming technique by a spread spectrum close to the monochromic frequency so that a guidance radar station may have the ability of anti-active-jamming and anti-passive-jamming, anti-reconnaissance, anti-antiradiation missile, and anti-stealth. However, this technique can not meet the needs of the modern electronic countermeasures. This paper deals with a new method with which multifrequency spread spectrum and hopping spectrum are used instead of monofrequency spread spectrum, and introduces the method of generating the chirp signal and corresponding matched filter system.