Clutter Cancellation for Airborne Passive Radar Based on Frequency-domain Block RDS-LMS Algorithm

YANG Pengcheng; Lü Xiaode; CHAI Zhihai; ZHANG Dan; YUE Qi; YANG Jingmao

doi:10.11999/JEIT170190

Volume 39 Issue 10

Oct. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(10): 2302-2310

YANG Pengcheng, Lü Xiaode, CHAI Zhihai, ZHANG Dan, YUE Qi, YANG Jingmao. Clutter Cancellation for Airborne Passive Radar Based on Frequency-domain Block RDS-LMS Algorithm[J]. Journal of Electronics & Information Technology, 2017, 39(10): 2302-2310. doi: 10.11999/JEIT170190

Citation:

YANG Pengcheng, Lü Xiaode, CHAI Zhihai, ZHANG Dan, YUE Qi, YANG Jingmao. Clutter Cancellation for Airborne Passive Radar Based on Frequency-domain Block RDS-LMS Algorithm[J]. Journal of Electronics & Information Technology, 2017, 39(10): 2302-2310. doi: 10.11999/JEIT170190

Citation:

YANG Pengcheng, Lü Xiaode, CHAI Zhihai, ZHANG Dan, YUE Qi, YANG Jingmao. Clutter Cancellation for Airborne Passive Radar Based on Frequency-domain Block RDS-LMS Algorithm[J]. Journal of Electronics & Information Technology, 2017, 39(10): 2302-2310. doi: 10.11999/JEIT170190

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Clutter Cancellation for Airborne Passive Radar Based on Frequency-domain Block RDS-LMS Algorithm

doi: 10.11999/JEIT170190

Received Date: 2017-03-02
Rev Recd Date: 2017-06-23
Publish Date: 2017-10-19

Abstract

Abstract

A frequency-domain block Range-Doppler-Space Least-Mean-Square (RDS-LMS) algorithm is proposed for the cancellation of the Doppler spread of clutter for airborne passive radar. To avoid the cancellation of targets in the clutter Doppler band with the cancellation of clutter, this algorithm uses the spatial dependence of the clutter Doppler frequency and cancels clutter along the clutter ridge. With the frequency-domain block implementation, the iteration of adaptive processing is reduced and FFT can be employed. Hence, the computational load is reduced. Simulation results based on experimental data show that the proposed algorithm is able to cancel clutter effectively and more importantly it has slight influence on targets in clutter Doppler band. For example, for targets with radial velocity greater than 10 m/s, signal-to-noise ratio (SNR) loss is within 1 dB. Computational complexity analyses show that the frequency-domain block implementation reduces the computational load 42 times and according to the real-time implemented Frequency-Domain Block LMS (FBLMS) algorithm in ground based passive radar, the proposed algorithm needs 771 ms to process 1 s data with the help of parallel processing of Graphic Processing Unit (GPU) and can satisfy the need for the real-time implementation of airborne passive radar clutter cancellation.
- Airborne passive radar,
- Clutter cancellation,
- Doppler spread,
- Range-Doppler-Space Least-Mean- Square (RDS-LMS),
- Frequency-domain block,
- Clutter ridge

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References(22)

References

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