Fast Nulls Tracking Pattern Synthesis Based on Jammer Subspace Orthogonal Projection

MA Xiaofeng; LU Le; SHENG Weixing; HAN Yubing; ZHANG Renli

doi:10.11999/JEIT151438

Volume 38 Issue 10

Oct. 2016

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Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(10): 2560-2567

MA Xiaofeng, LU Le, SHENG Weixing, HAN Yubing, ZHANG Renli. Fast Nulls Tracking Pattern Synthesis Based on Jammer Subspace Orthogonal Projection[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2560-2567. doi: 10.11999/JEIT151438

Citation:

MA Xiaofeng, LU Le, SHENG Weixing, HAN Yubing, ZHANG Renli. Fast Nulls Tracking Pattern Synthesis Based on Jammer Subspace Orthogonal Projection[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2560-2567. doi: 10.11999/JEIT151438

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Fast Nulls Tracking Pattern Synthesis Based on Jammer Subspace Orthogonal Projection

doi: 10.11999/JEIT151438 cstr: 32379.14.JEIT151438

Funds:

The National Natural Science Foundation of China (61501240, 11273017), The Key Project of Shanghai Aerospace Foundation of China (SAST201437)

Received Date: 2015-12-17
Rev Recd Date: 2016-05-16
Publish Date: 2016-10-19

Abstract

Abstract

A fast nulls tracking pattern synthesis algorithm based on jammer subspace orthogonal projection is proposed, which can suppress the dynamic active jamming for LEO spaceborne array antenna. The algorithm corrects the nulls positions of radiation pattern synchronously through dynamically jammer subspace updating and iterative orthogonal projection, while the Iterative Fourier Transform (IFT) technique?is adopted to accelerate the correction. The proposed algorithm can maintain the mainlobe region and control the dynamic range ratio of excitations robustly and precisely, while minimizing the pattern sidelobe adaptively, so it is suitable for online real-time calculation in spaceborne array antenna. Simulation results verify the rapidity, effectiveness, and robustness of the proposed algorithm.
- Low Earth Orbit (LEO) satellite communication,
- Fast pattern synthesis,
- Anti-jamming nulls,
- Fast Fourier Transform (FFT)

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References(22)

References

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