An Adaptive Estimation Method of Diagonal Loading Parameter for Airborne Radar

JIANG Lei; WANG Tong

doi:10.11999/JEIT151003

Volume 38 Issue 7

Jul. 2016

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JIANG Lei, WANG Tong. An Adaptive Estimation Method of Diagonal Loading Parameter for Airborne Radar[J]. Journal of Electronics & Information Technology, 2016, 38(7): 1752-1757. doi: 10.11999/JEIT151003

Citation:

JIANG Lei, WANG Tong. An Adaptive Estimation Method of Diagonal Loading Parameter for Airborne Radar[J]. Journal of Electronics & Information Technology, 2016, 38(7): 1752-1757. doi: 10.11999/JEIT151003

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An Adaptive Estimation Method of Diagonal Loading Parameter for Airborne Radar

doi: 10.11999/JEIT151003 cstr: 32379.14.JEIT151003

JIANG Lei¹,
WANG Tong¹

Funds:

The National Natural Science Foundation of China (61372133)

Received Date: 2015-09-08
Rev Recd Date: 2016-05-03
Publish Date: 2016-07-19

Abstract

Abstract

Diagonal loading method can be exploited to improve the performance of Space Time Adaptive Processing (STAP) in the face of limited training data. However, the diagonal loading level may be not easily determined in fact. To solve this problem, an adaptive parameter estimation method based on the received radar data is proposed. The diagonal loading problem is firstly transformed into the Tikhonov regularization problem. Then, Generalized Cross Validation (GCV) is introduced to construct the optimization problem. Finally, secant method is utilized to solve the optimization problem and calculate the loading parameter. The performance of the method is demonstrated using both simulated data and measured data. The results show that the method can improve the radar moving target detection performance in a limited sample support environment.
- Target detection,
- Space Time Adaptive Processing (STAP),
- Diagonal loading,
- Parameter estimation,
- Generalized Cross Validation (GCV),
- Secant method

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References(17)

References

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