期刊
IEEE TRANSACTIONS ON SIGNAL PROCESSING
卷 66, 期 16, 页码 4207-4222出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSP.2018.2847636
关键词
Colocated MIMO radar; waveform design; transmit beampattern; constant modulus; minimum sidelobe; ripple control; quadratic fractional programming (QFP); double-sided quadratic constraints; unimodular quadratic program (UQP)
资金
- Natural Science Foundation of China [61471295]
- Aeronautical Science Foundation of China [20172053017]
- Central University Funds [G2016KY0308, G2016KY0002, 17GH030144]
- CAS [QYZDY-SSW-JSC035]
This paper addresses the problem of minimum peak sidelobe transmit beampattern design for colocated multiple-input multiple-output radar systems. Two new methods are proposed to achieve it via designing constant modulus (CM) waveforms directly: One is to maximize the ratio of the minimum mainlobe level to the peak sidelobe level (PSL) without specifying pattern masks, and another is to minimize PSL under the mainlobe ripple and unspecified waveform modulus constraints. The resultant optimization problems are difficult to solve due to the coupled numerator and denominator of the quadratic fractional programming problem formulation in the former and double-sided quadratic constraints and unknown waveform modulus in the latter. For the former, we decouple the numerator and denominator by equivalent transformation and introduction of boundary-type auxiliary variables in order that feasible methods are derived to tackle them independently and efficiently. For the latter, we simplify the coupled double-sided quadratic constraints on the same waveform vector into those on different single auxiliary variables to tackle the corresponding nonconvex optimization problem. Numerical examples show that the proposed algorithms can attain sufficient low peak sidelobe beampattern levels under the CM constraints.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据