中北大学学报（自然科学版）2018，Vol.39Issue(2)：214-219,6.DOI:10.3969/j.issn.1673-3193.2018.02.018
高速目标检测性能影响因素的分析方法
Analysis Method of Influencing Factors of High Speed Target Detection Performance
张秀丽 1卓辉 1庞存锁2
作者信息
- 1. 中北大学 信息商务学院,山西 晋中030600
- 2. 中北大学 信息与通信工程学院,山西 太原030051
- 折叠
摘要
Abstract
Aiming at the problem of echo accumulation and energy diffusion caused by the velocity,accel-eration and amplitude fluctuation of high-speed targets,the influence of target parameters and radar pa-rameters on echo accumulation efficiency is studied based on echo model.By establishing the mathemati-cal model of echo envelope,frequency walk and resolution,we analyzed the influence rule of moving ob-j ects on target resolution and accumulated energy,and got the quantitative relationship between distance walk,Doppler walk and signal accumulation gain.The results show that when the distance walk is lar-ger than 2 resolution units,the accumulated energy SNR decreases by 2 dB.And,a similar analysis is done to the Doppler frequency.At the same time,we analyze the change of coherent accumulation ener-gy under different amplitude fluctuation models.The results show that the energy loss caused by slow fluctuation is greater than fast fluctuation,and this kind of target is not suitable for long time coherent accumulation.关键词
高速目标检测/雷达检测/目标运动参数补偿Key words
high speed target detection/radar detection/compensation of target movement parameters分类
信息技术与安全科学引用本文复制引用
张秀丽,卓辉,庞存锁..高速目标检测性能影响因素的分析方法[J].中北大学学报（自然科学版）,2018,39(2):214-219,6.
