文档介绍：第 28 卷第 2 期计算机应用研究畅28 畅2
2011 年 2 月 Vol 畅2011No
Application Research puters Feb
MIMO 雷达长时间积累下的
参数优选算法研究倡
李超, 刘红明, 李军
(电子科技大学电子工程学院,成都 611731)
摘要: 长时间积累是(多输入多输出)雷达最常用的工作模式,而包络走动会严重影响积累效果。针对
MIMO
上述问题,推导出基于雷达运动目标回波模型的积累输出与目标速度、信号带宽等关键因素的表达式,定
MIMO
量说明了包络走动与其影响因子之间的关系。该表达式可用于确定需要进行包络补偿的目标速度范围,并通过
发射带宽等参数的优选,使包络走动对积累效果的影响最小。仿真结果验证了理论分析的有效性。
关键词: 多输入多输出雷达; 正交线性调频信号; 长时间积累; 包络走动; 带宽选择
中图分类号: 95 文献标志码: 文章编号: 1001唱3695(2011)02唱0548唱03
TN A
: /. .
doi j issn
Parameter selection algorithm of MIMO radar under long time integration
, 唱,
LI Chao LIU Hong ming LI Jun
(School of Electronic Engineering, University of Electronic Science Technology of China, Chengdu 611731, China)
&
Abstract: ( 唱唱) .
Long time integration is mon. mode in MIMO multiple input multiple, output radar But the accumulation
effect is seriously affected by range, migration To solve the problems mentioned above this paper formulated the accumulation. 唱
output changing with target velocity bandwidth and other factors based on moving. target echo model in MIMO radar It quanti唱
ficationally analyzed the relation between range migration, and its influence factors This formula can be used to determine tar
get velocity on which pensation is essential together with appropriate parameters. such as transmission bandwidth
selected to ensure. rang