信号处理2025，Vol.41Issue(7)：1206-1218,13.DOI:10.12466/xhcl.2025.07.006
基于频域坐标下降的抗噪声调频干扰相位编码波形设计
Phase-Coded Waveform Design Against Noise Frequency-Modulated Jamming Based on Frequency-Domain Coordinate Descent
摘要
Abstract
To address the high computational complexity and the challenge of meeting real-time processing requirements in ex-isting phase-coded waveform design algorithms against noise frequency-modulated jamming,this paper proposes an efficient optimization algorithm based on frequency-domain coordinate descent.First,the joint optimization objective function in the time domain is transformed into the frequency domain,establishing a frequency-domain optimization model for phase-coded waveforms.This transformation not only effectively circumvents the high computational cost associated with large-scale matrix operations in time-domain optimization but also simplifies the structure of the optimization problem,thereby facilitating subse-quent algorithm design.Next,the Frequency-Domain Coordinate Descent Method(FCDM)is integrated with the Alternating Direction Method of Multipliers(ADMM)framework,resulting in the proposed ADMM-FCDM algorithm.This algorithm simplifies the complex high-dimensional optimization task by decomposing it into multiple independent single-variable optimi-zation steps.By deriving closed-form solutions for the frequency-domain sequence elements of the waveform,the algorithm substantially reduces the computational load per iteration and significantly enhances global optimization efficiency.Further-more,the Fast Fourier Transform(FFT)technique is incorporated to accelerate the ADMM-FCDM algorithm,resulting in the frequency-domain coordinate descent method with fast fourier transform under the ADMM framework(ADMM-FFT-FCDM).The use of FFT significantly reduces the computational time required for transformations between the time and fre-quency domains,thereby further enhancing the algorithm's overall efficiency.Simulation results demonstrate that,com-pared to existing methods,the proposed ADMM-FFT-FCDM algorithm exhibits significant improvements in computa-tional speed while maintaining comparable radar detection performance and anti-jamming capabilities.关键词
噪声调频干扰/相位编码波形/积分旁瓣电平/交替方向乘子法/频域坐标下降法Key words
noise frequency-modulated jamming/phase-coded waveform/integrated sidelobe level/alternating direc-tion method of multipliers/frequency-domain coordinate descent method分类
信息技术与安全科学引用本文复制引用
刘浩,刘思琪,张欣媛,张劲东..基于频域坐标下降的抗噪声调频干扰相位编码波形设计[J].信号处理,2025,41(7):1206-1218,13.基金项目
国家自然科学基金(62171220)The National Natural Science Foundation of China(62171220) （62171220）
