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| Weighted Projection Optimization for Range-dependent Clutter Suppression in Bistatic MIMO Radar |
| Dang Bo Liao Gui-sheng Li Jun Chai Rui Su Jia |
| National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China |
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Abstract In bistatic MIMO radar system, all the clutter ridges are located in the same plane of the three- dimensional space. By using this characteristic, a weighted projection optimization based range-dependent clutter suppression method is presented. The coordinates of the clutter spectra are first rotated through a special angle. Then the projection weights are optimized by maximizing the output Signal-Interference-Noise Ratio (SINR) to transform the 3-Dimensional (3D) range-dependent clutter to 2D range-independent. Furthermore, the resultant nonlinear optimization issue is reformulated as a Semi-Definite Programming (SDP) one, which can be solved very efficiently. Analysis of simulation indicate that the proposed method is easy to implement and can cancel the range-dependent clutter effectively.
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Received: 05 January 2013
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Corresponding Authors:
Dang Bo
E-mail: bodang521@126.com
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2013, Vol. 35 
