Altitude Measurement of Low-Angle Target Under Complex Terrain Environment for Meter-Wave Radar
Yuan Liu, Hongwei Liu, Bo Jiu, Lei Zhang
Abstract
For modern meter-wave radar, the performance of low-angle target altitude measurement is limited by multipath phenomenon, especially in the complex terrain environment where the multipath signal is perturbed by irregular surface. To address this problem, a practical signal model for meter-wave radar in practical terrain is first presented, where the influence of the perturbed multipath caused by irregular reflecting surface is taken into consideration. A novel compressive sensing (CS) based altitude measurement algorithm, combined with alternative optimization and dictionary updating techniques, is then proposed, in which the perturbation caused by the complex terrain can be iteratively compensated to estimate the target altitude more precisely. Numerical results based on both simulated data and real data demonstrate the effectiveness of the proposed algorithm under complex terrain environment.
BibTeX
@inproceedings{icassp2018_altitudemeasurem,
title = {Altitude Measurement of Low-Angle Target Under Complex Terrain Environment for Meter-Wave Radar},
author = {Yuan Liu and Hongwei Liu and Bo Jiu and Lei Zhang},
booktitle = {ICASSP 2018},
year = {2018}
}