摘要
现有MIMO雷达波形优化设计大都是根据跟踪、检测等雷达任务的需要而设计的窄带发射信号,没有考虑成像任务的要求。提出一种面向多目标ISAR成像任务的MIMO雷达波形优化设计方法,将雷达获取的关于目标的位置、雷达散射截面积(RCS)、速度等先验信息以及成像对雷达发射波形的带宽限制作为波形优化的重要约束条件,建立了面向多目标成像任务的波形优化模型,并通过共轭梯度算法进行求解。所设计波形可同时实现对不同方向的目标的成像。
The most existing MIMO radar waveform optimization designs are a narrow-band signal designed according to the need of radar tasks in tracking and detecting without the requirement of imaging tasks. A kind of method about MIMO radar waveform optimization design for multi-target ISAR imaging is pro- posed in the paper. The prior information like target location, RCS, target velocity as well as bandwidth limitation of imaging task is considered in waveform optimization as important constraints, a waveform op- timization model for multi-target Imaging is established and solved by the conjugate gradient method. The designed waveform can achieve the imaging of targets in different directions at the same time.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2017年第2期18-24,共7页
Journal of Air Force Engineering University(Natural Science Edition)
基金
国家自然科学基金(61631019)
