基于四阶累积量的自适应参数型多径时延估计

Multipath Time Delay Estimation Based on Adaptive Parameters Approach Using Fourth-Order Cumulants

在存在多通道信号干扰及背景噪声的情况下,本文提出了一种基于四阶累积量的自适应参数型时间延时估计方法。该方法能准确地进行多径传输情况下的时间延时估计,有效地抑制相关高斯噪声的影响. 仿真结果说明了方法的有效性。该时间延时估计方法可用于声纳及雷达系统的目标定位。

Taking into account the multi-channels disturbance and spatially correlated Gaussian, multipath time delay estimation based on adaptive parametric approach using fourth-order cumulants is proposed in this paper. Multi-path time delays are estimated precisely with this approach, and spatially correlated Gaussian noises can be suppressed effectively. The simulation examples are presented to demonstrate the effectiveness of this novel approach. This multipath time delay estimation approach based on adaptive parameters approach can be used to location targets in sonar and radar system.