Deception jammer suppression in fractional Fourier transformation domain with random chirp rate modulation. (17th August 2016)

• Record Type: Journal Article
• Authors: Lu, Gang; Gui, Guan; Bu, Yun; Lei, Yu; Chen, YongQiang
• Is Part Of: Journal of the Chinese Institute of Engineers. Volume 39:Number 6(2016)
• Page Start: 722
• Page End: 726
• Publication Date: 2016-08-17
• Subjects: Deception jammer -- fractional Fourier transformation -- pulse diversity -- electronic counter-countermeasure; Technology -- Periodicals; Engineering -- Periodicals; 620.005
• DOI: 10.1080/02533839.2016.1187081
• Languages: English
• ISSNs: 0253-3839

Abstract

Abstract: The issue addressed here is deception jammer suppression in radar systems. Advances in electronic countermeasure (ECM) technology are likely to change the requirements for electronic counter-countermeasures (ECCM), and the original specifications from which the systems were designed may no longer be appropriate. Here, the fraction Fourier transformation (FrFT) is used as a means of signal representation and filtering. A two-phase process is proposed based on random chirp rate modulation. First, the jamming signal is focused and excised. Second, the target echo is then focalized and refined. The approach yields to a two-block device in an actual radar system.