[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 峰均比约束下机载MIMO雷达频谱共存波形设计-Airborne MIMO Radar Waveform Design for Spectral Coexistence with PAR Constraint
文章摘要
童日武, 张剑云, 周青松.峰均比约束下机载MIMO雷达频谱共存波形设计[J].空军工程大学学报:自然科学版,2020,21(1):44-51
峰均比约束下机载MIMO雷达频谱共存波形设计
Airborne MIMO Radar Waveform Design for Spectral Coexistence with PAR Constraint
  
DOI:
中文关键词: 机载MIMO雷达  频谱共存  波形设计  峰均比约束  相似性约束
英文关键词: airborne MIMO radar  spectral coexistence  waveform design  PAR constraint  similarity constraint
基金项目:
作者单位
童日武, 张剑云, 周青松 国防科技大学电子对抗学院 合肥 230037 
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中文摘要:
      为了进一步增强雷达对地面动目标的检测性能,同时能够实现与通信系统之间的频谱共存,研究了机载多输入多输出(MIMO)雷达在地杂波环境下的频谱共存波形设计问题。首先对波形施加了峰均比(PAR)约束,然后考虑了全局频谱设计和局部频谱设计2种设计方法,最后提出了一种新颖的循环迭代算法,在每次迭代过程中通过凸近似处理将原非凸优化问题转化为可解的凸优化问题,再使用可行点追踪连续凸近似(FPP-SCA)算法直接求出波形的最优解。仿真结果表明:与现有算法对比,该算法具有更快的运算速度,而且能够对波形起到峰均比约束的效果。
英文摘要:
      In order to further enhance the detection performance of radar for moving targets on the ground and to achieve spectral coexistence between radar and communication systems, the waveform design is studied for spectral coexistence of airborne Multiple-Input Multiple-Output (MIMO) radar under condition of the environment of ground clutter. Firstly, the peak-to-average-power ratio (PAR) constraint is exerted on the waveform,and then both the global spectrum design and the local spectrum design are considered. Finally, a novel cyclic iterative algorithm is proposed. In process of each iteration, the original non convex optimization problem is transformed into a solvable convex optimization problem through the convex approximation, and then the optimal solution of the waveform is obtained directly by using the Feasible Point Pursuit Successive Convex Approximation(FPP-SCA)algorithm. The simulation results show that compared with the existing algorithm, the algorithm not only has still faster operation speed, but also can play a role of PAR constraint in waveform.
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