高速运动环境下的调频步进信号运动参数估计

doi:10.3969/j.issn.1001-2400.2011.01.022

J4 ›› 2011, Vol. 38 ›› Issue (1): 136-141.doi: 10.3969/j.issn.1001-2400.2011.01.022

高速运动环境下的调频步进信号运动参数估计

孙慧霞;刘峥;曹运合

(西安电子科技大学雷达信号处理国家重点实验室，陕西西安 710071)

收稿日期:2010-01-21 出版日期:2011-02-20 发布日期:2011-04-08
通讯作者: 孙慧霞
作者简介:孙慧霞(1983-)，女，西安电子科技大学博士研究生，E-mail: hxsun@mail.xidian.edu.cn．
基金资助:
国家自然科学基金资助项目(60901068)

Estimation of a high-velocity target's motion parameters for a modulated frequency stepped radar

SUN Huixia;LIU Zheng;CAO Yunhe

(National Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071， China)

Received:2010-01-21 Online:2011-02-20 Published:2011-04-08
Contact: SUN Huixia

摘要/Abstract

摘要：

针对高速运动环境下调频步进信号的速度补偿问题，提出了包络相关法和最小脉组误差法相结合的测速方法，首先用包络相关法对目标速度进行粗测，然后以粗测速度为中心，在一个速度周期内利用最小脉组误差法对速度进行精测，从而避免了最小脉组误差法可能存在的局部极小值问题．仿真结果表明，该方法测速精度高，并且具有较好的抗噪性．

关键词: 调频步进雷达, 速度补偿, 包络相关, 最小脉组误差

Abstract:

Aiming at the motion compensation for the modulated stepped frequency radar signal echoed by a moving target, we develop a new method combining envelope correlation and the least burst error rule for estimating the velocity. First, the coarse velocity is measured by using envelope correlation, then the refined velocity is estimated by utilizing the least burst error rule based on the coarse velocity, which avoids the problem of the local minimum existing in the least burst error method. Simulation results indicate that the method can accomplish accurate estimation of target motion parameters with good anti-noise performance.

Key words: modulated frequency stepped radar, motion compensation, envelope correlation, least burst error

孙慧霞;刘峥;曹运合. 高速运动环境下的调频步进信号运动参数估计[J]. J4, 2011, 38(1): 136-141.

SUN Huixia;LIU Zheng;CAO Yunhe. Estimation of a high-velocity target's motion parameters for a modulated frequency stepped radar[J]. J4, 2011, 38(1): 136-141.

参考文献

[1] Wehner D R. High Resolution Radar[M]. Norwood: Artech House, 1997:128-135.
[2] Zhang Qun, Jin Yaqiu. Aspects of Radar Imaging Using Frequency-Stepped Chirp Signals [EB/OL]. [2009-12-10]. http://delivery.acm.org/10.1145/1290000/1288297/p43-zhang.pdf?key1=1288297&key2=4533261921&coll=DL&dl=ACM&CFID=440150&CFTOKEN=23287356.
[3] 龙腾, 毛二可, 何佩琨. 调频步进雷达信号分析与处理[J].电子学报,1998,26(12):84-88.
Long Teng, Mao Erke, He Peikun. Analysis and Processing of Modulated Frequency Stepped Radar Signal [J]. Acta Electronica Sinica, 1998,26(12):84-88.
[4] 张群,张涛,张守宏.运动目标环境下的调频步进信号分析[J].西安电子科技大学学报,2001,28(2):220-224.
Zhang Qun, Zhang Tao, Zhang Shouhong. Study of the Chirp Modulated by a Stepped Frequency for a Moving Target[J]. Journal of Xidian University, 2001,28(2):220-224.
[5] 韩冰,梁兴东,李道京,等.高分辨机载调频步进SAR成像处理[J].系统仿真学报,2009,21(17):5511-5515.
Han Bing, Liang Xingdong, Li Daojing, et al. High Resolution Airborne Stepped-frequency SAR Imaging [J]. Journal of System Simulation, 2009,21(17):5511-5515.
[6] 李亚超,梁毅,邢孟道,等.基于线性调频步进ISAR参数估计和成像算法研究[J].电子学报,2008,36(12):2464-2472.
Li Yachao, Liang Yi, Xing Mengdao, et al. Estimation of Motion Parameters and Research of Imaging Algorithm Based on LMFS ISAR[J]. Acta Electronica Sinica,2008,36(12): 2464-2472.
[7] 袁昊天,文树梁,程臻.调频步进信号高速运动目标径向速度精确测量技术研究[J].电子学报,2009,37(3):649-653.
Yuan Haotian, Wen Shuliang, Cheng Zhen. Accurate Velocity Measurement of High Speed Moving Target about Stepped-frequency Chirp Signal[J]. Acta Electronica Sinica, 2009,37(3):649-653.
[8] 李亚超,苏军海,邢孟道,等.利用时间-调频率分布特性的复杂运动目标ISAR成像研究[J].西安电子科技大学学报,2008,35(1):1-7.
Li Yachao, Su Junhai, Xing Mengdao, et al. Research on ISAR Imaging of the Complexly Moving Target Based on the Time-chirp Distribution [J]. Journal of Xidian University, 2008,35(1):1-7.
[9] 刘峥,张守宏.步进频率雷达目标的运动参数估计[J].电子学报,2000,28(3):43-45.
Liu Zheng, Zhang Shouhong. Estimation of Target Motion Parameter in a Stepped-Frequency Pulses Radar[J]. Acta Electronica Sinica, 2000,28(3):43-45.

高速运动环境下的调频步进信号运动参数估计

Estimation of a high-velocity target's motion parameters for a modulated frequency stepped radar

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