Nonlinear Distortion Suppression in Cooperative Jamming Cancellation System

Chenxing LI; Wenbo GUO; Ying LIU; Ying SHEN; Hongzhi ZHAO; Youxi TANG

doi:10.11999/JEIT180919

Volume 41 Issue 9

Sep. 2019

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Chenxing LI, Wenbo GUO, Ying LIU, Ying SHEN, Hongzhi ZHAO, Youxi TANG. Nonlinear Distortion Suppression in Cooperative Jamming Cancellation System[J]. Journal of Electronics & Information Technology, 2019, 41(9): 2033-2038. doi: 10.11999/JEIT180919

Citation:

Chenxing LI, Wenbo GUO, Ying LIU, Ying SHEN, Hongzhi ZHAO, Youxi TANG. Nonlinear Distortion Suppression in Cooperative Jamming Cancellation System[J]. Journal of Electronics & Information Technology, 2019, 41(9): 2033-2038. doi: 10.11999/JEIT180919

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Nonlinear Distortion Suppression in Cooperative Jamming Cancellation System

doi: 10.11999/JEIT180919

National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 611731, China

Funds: The National Natural Science Foundation of China (61701075, 61771107, 61771115, 61531009, 61471108), The National Major Project of China (2016ZX03001009), The Fundamental Research Funds for the Central Universities of China

Received Date: 2018-09-27
Rev Recd Date: 2019-02-28

Available Online: 2019-03-30

Publish Date: 2019-09-10

Abstract

Abstract

In Cooperative Jamming (CJ) system, the Power Amplifier (PA) in the jamming transmitter works in nonlinear region, which results in a large number of nonlinear components in the Self-Interference (SI) signal received by the near-end receiver. To solve the problem of nonlinear distortion suppression, a nonlinear model is established at the receiver. Then, the reconstructed nonlinear signal based on the estimated parameters is subtracted from the received signal to suppress the nonlinear interference in CJ. Simulation and experimental results indicate that the nonlinear suppression scheme proposed in this paper can further suppress the nonlinear interference under the residual frequency offset in CJ, and verify the effectiveness and feasibility of the proposed scheme.
- Co-time co-frequency,
- Cooperative Jamming (CJ),
- Nonlinear distortion,
- Interference suppression

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References(13)

References

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