Reference Signal Trusted Reconstruction for Passive Radar Based on Optimal Clutter Rejection

Xun ZHANG; Xianrong WAN; Jianxin YI; Ziping GONG

doi:10.11999/JEIT201020

Volume 43 Issue 11

Nov. 2021

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Xun ZHANG, Xianrong WAN, Jianxin YI, Ziping GONG. Reference Signal Trusted Reconstruction for Passive Radar Based on Optimal Clutter Rejection[J]. Journal of Electronics & Information Technology, 2021, 43(11): 3193-3200. doi: 10.11999/JEIT201020

Citation:

Xun ZHANG, Xianrong WAN, Jianxin YI, Ziping GONG. Reference Signal Trusted Reconstruction for Passive Radar Based on Optimal Clutter Rejection[J]. Journal of Electronics & Information Technology, 2021, 43(11): 3193-3200. doi: 10.11999/JEIT201020

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Reference Signal Trusted Reconstruction for Passive Radar Based on Optimal Clutter Rejection

doi: 10.11999/JEIT201020

School of Electronic Information, Wuhan University, Wuhan 430072, China

Funds: The National Natural Science Foundation of China (61931015, 62071335, 61831009), The Technological Innovation Project of Hubei Province (2019AAA061)

Received Date: 2020-12-04
Rev Recd Date: 2021-04-08

Available Online: 2021-05-06

Publish Date: 2021-11-23

Abstract

Abstract

Reference signal reconstruction is one of the key technologies for signal processing of passive radar based on digital TV signals. The quality of the reconstructed signal affects directly the time-domain clutter suppression effect of the surveillance signal. To solve the problem that the reconstructed reference signal can not match the actual transmitted signal, this paper proposes a reference signal trusted reconstruction method based on “Demodulation-Remodulation” with the indicator that the optimal time-domain clutter suppression effect of the surveillance signal. First, the reference signal remodulation method is introduced and a signal model is established based on the non-ideal transmitted signal. Then, the theoretical relationship between the remodulation reference signal and the time-domain clutter suppression of the surveillance signal is derived. Based on the criterion of the optimal clutter suppression, the trusted reconstruction of the reference signal is obtained. Finally, simulation and field experiment verify the effectiveness of the reference signal trusted reconstruction method.
- Passive radar,
- Reference signal reconstruction,
- Clutter suppression,
- Trusted reconstruction,
- Modulation Error Ratio(MER)

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References(25)

References

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