论文部分内容阅读
本文研究了长时间相参积累时微弱运动目标回波信号的特点,分析了常规检测方法的局限性,针对多项式相位信号模型,结合复正交线性相位子波基函数的设计,提出了一种基于自适应子波变换局域线性逼近的微弱运动目标检测方法,该方法具有自适应频带划分,快速算法实现,计算量低,并对统计分布的杂散分量具有自动抑制的特点理论分析和计算机仿真结果验证了该方法的有效性
In this paper, we study the characteristics of echo signals of weak moving targets when coherently accumulate for a long time, and analyze the limitations of conventional detection methods. For the polynomial phase signal model, combined with the design of complex orthogonal linear wavelets, A weak moving target detection method based on local linear approximation of adaptive wavelet transform has the advantages of adaptive frequency band division, fast algorithm implementation, low computational complexity and theoretical analysis of the automatic suppression of spurious components of statistical distribution and computer Simulation results verify the effectiveness of this method