中文摘要：

针对传统宽带线性调频信号参数估计精度不高的问题,提出了基于凸优化基追踪算法的线性调频信号参数估计方法。该方法利用Gabor原子良好时频特性,以l1范数稀疏正则最小二乘模型为目标函数求解稀疏Gabor原子进行参数估计。仿真实验证明,该方法具有原子的稀疏性好,对原信号重构精度高和参数估计准确的特点。

英文摘要：

In order to improve traditional parameter estimation accuracy of wideband LFM signal, a method of parameter estimation of LFM signal based on Convex optimization basis pursuit was presented. The method uti-lized good time-frequency characteristics of Gabor atoms and used l1 norm Sparse regular least squares model to solve and estimate parameter. Simulation results showed that the proposed method had sparse nature of atoms, high precise reconstruction and good parameter estimation