An Anti-Dense False Target Jamming Algorithm Based on Agile Frequency Joint Hough Transform

Yinghui QUAN; Xiada CHEN; Feng RUAN; Xia GAO; Yachao LI; Mengdao XING

doi:10.11999/JEIT190010

Volume 41 Issue 11

Nov. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(11): 2639-2645

Yinghui QUAN, Xiada CHEN, Feng RUAN, Xia GAO, Yachao LI, Mengdao XING. An Anti-Dense False Target Jamming Algorithm Based on Agile Frequency Joint Hough Transform[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2639-2645. doi: 10.11999/JEIT190010

Citation:

Yinghui QUAN, Xiada CHEN, Feng RUAN, Xia GAO, Yachao LI, Mengdao XING. An Anti-Dense False Target Jamming Algorithm Based on Agile Frequency Joint Hough Transform[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2639-2645. doi: 10.11999/JEIT190010

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An Anti-Dense False Target Jamming Algorithm Based on Agile Frequency Joint Hough Transform

doi: 10.11999/JEIT190010

1.
National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
2.
Xi’an Electronic Engineering Research Institute, Xi’an 710100, China

Funds: The National Natural Science Foundation of China(61303035, 61772397), The Fundamental Research Funds for the Central University; The Innovation Fund of Xidian University

Received Date: 2019-01-07
Rev Recd Date: 2019-05-08

Available Online: 2019-05-24

Publish Date: 2019-11-01

Abstract

Abstract

Forwarding dense false target jamming disturbs the detection and recognition of real targets by generating multiple false targets in the range dimension. Because the false echo signal is highly correlated with the real signal, it is difficult for radar to recognize and suppress it effectively. Frequency agile radar improves greatly the low interception and anti-jamming ability of radar by randomly changing the carrier frequency of transmitting adjacent pulses. However, agile radar can not completely eliminate the interference, some target echo pulses may be submerged by the interference, agile radar can not complete coherent accumulation and target detection well either. To solve the above problems, an anti-jamming method of frequency agility combined with Hough transform is proposed. Firstly, the inter-pulse frequency agility technology is used to avoid most narrowband aiming and deceptive jamming. Then, according to the time discontinuity of the jamming signal, Hough transform and peak extraction are used to identify and suppress the jamming. Frequency agility is incompatible with the traditional Moving Target Detection(MTD). Target detection is accomplished by sparse reconstruction. The simulation and actual radar and jammer countermeasure experiments show that the proposed method can achieve good anti-jamming performance and target detection performance.
- Electronic counter-countermeasure,
- Dense multi-false targets,
- Frequency agility,
- Hough transform

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References(18)

References

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