现代雷达2016，Vol.38Issue(8)：54-58,5.DOI:10.16592/j.cnki.1004-7859.2016.08.013
基于 LFM 的双波段雷达航迹起始方法
The Algorithm of Track Initiation for Dual-band Radar Based on LFM Sign al
摘要
Abstract
The signal using linear frequency modulation technology is an important pulse compression signal .Because of its various excellent properties , it has been widely used in the actual engineering project .As a result of carriers at different frequencies , chirp signals will have different rangeD-oppler coupling coefficient .After the pulse compression ,the ranging error caused by dual -band radar will make track initiation difficult .In order to deal with this problem , this article explains the influence of different range-Doppler coupling coefficient in the measurement of the dual-band radar , and exports the nonlinear equations of the dual-band radar measurement .Then the weighted least squares ( Gauss-Newton iteration ) algorithm is applied to calculate the initial state of moving radar target.Finally, the algorithm of track initiation for the dual-band radar based on LFM signal is proposed .Monte-Carlo simu-lation results show that this method can effectively improve the accuracy rate of moving target track initiation when the radar works under different wavelengths mode .关键词
线性调频/双波段雷达/航迹起始/距离多普勒耦合Key words
linear frequency modulation/dual-band radar/track initiation/range-Doppler coupling分类
信息技术与安全科学引用本文复制引用
郑啸宇,王建卫..基于 LFM 的双波段雷达航迹起始方法[J].现代雷达,2016,38(8):54-58,5.
