OPARC: Optimal and Precise Array Response Control Algorithm—Part II: Multi-Points and Applications
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The optimal and precise array response control (OPARC) algorithm proposed in Part I of this two paper series is extended from single point to multi-points and an innovative concept of normalized covariance matrix loading is proposed.Abstract:
In this paper, the optimal and precise array response control (OPARC) algorithm proposed in Part I of this two paper series is extended from single point to multi-points. Two computationally attractive parameter determination approaches are provided to maximize the array gain under certain constraints. In addition, the applications of the multi-point OPARC algorithm to array signal processing are studied. It is applied to realize array pattern synthesis (including the general array case and the large array case), multi-constraint adaptive beamforming, and quiescent pattern control, where an innovative concept of normalized covariance matrix loading is proposed. Finally, simulation results are presented to validate the effectiveness and good performance of the multi-point OPARC algorithm.read more
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Journal ArticleDOI
High-Performance Beampattern Synthesis via Linear Fractional Semidefinite Relaxation and Quasi-Convex Optimization
TL;DR: A new method to synthesize high-performance beampatterns, with the aid of linear fractional semidefinite relaxation (LFSDR) technique and a quasi-convex optimization approach, which performs well in both the array configurations and/or noise environments.
Journal ArticleDOI
OPARC: Optimal and Precise Array Response Control Algorithm—Part I: Fundamentals
TL;DR: In this article, the problem of how to optimally and precisely control array response levels is addressed by using the concept of the optimal weight vector from the adaptive array theory and adding virtual interferences one by one.
Journal ArticleDOI
Phased array beamforming with practical constraints
TL;DR: The proposed approach can synthesize beams that meet the requirements of narrow mainlobe or both low sidelobe and high array gain or wide notch and can deal with the deterioration of the beam performance due to the quantization operation and the nonisotropy of the array.
Journal ArticleDOI
Mainlobe deceptive jammer suppression using element-pulse coding with MIMO radar
TL;DR: A preset beampattern synthesis (PBPS) method is proposed to enhance the robustness of jammer suppression against direction mismatches by broadening nulls around the jammers and generating a flat-top mainlobe.
Journal ArticleDOI
Pattern Synthesis via Oblique Projection-Based Multipoint Array Response Control
TL;DR: Two array response control algorithms for pattern synthesis with the aid of oblique projection can be presented and, by successively performing the proposed algorithms to adjust the response to meet certain requirements, the array pattern can be synthesized.
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