雷达高度表最小均方误差拟合高度估计算法研究

doi:10.16180/j.cnki.issn1007-7820.2019.08.005

Abstract

Abstract:

The traditional radar altimeter based on wave gate splitting method and half-power point method was greatly affected by noise and scattering fluctuation of ground scattering units, thus affecting the accuracy of height estimation. In this paper, the minimum mean square error fitting height estimation algorithm was proposed. The algorithm was based on the analytic model of ground echo, which made full use of the ground echo energy, so as to improve the accuracy of height estimation. The simulation results showed that the accuracy of the minimum mean square error was better than that of wave gate splitting method and the half power point method at different heights, and the influence of noise and ground scattering fluctuation on the accuracy of height estimation was reduced.

Key words: radar altimeter, height estimation, minimum mean square error fitting, wave gate splitting method, half-power point method, analytic model of ground echo

CLC Number:

TN957.7

PAN Shui. Research on Minimum Mean Square Error Fitting Height Estimation Algorithm for Radar Altimeter[J].Electronic Science and Technology, 2019, 32(8): 22-26.

Figures/Tables 6

Figure 1.

Figure 2.

Table 1

Figure 3.

Figure 4.

Table 2

References 19

[1]	张蕴玉, 胡炜, 刘柳 , 等. 宽波束雷达高度表的回波波形特性分析及仿真[J]. 华中科技大学学报, 2001,29(8):32-35.
	Zhang Yunyu, Hu Wei, Liu Liu , et al. Analysis and simulation of echo waveform characteristics of wide beam radar altimeter[J]. Journal of Huazhong University of Science and Technology, 2001,29(8):32-35.
[2]	徐小平 . FMCW雷达高度表数字信号处理研究[D]. 成都:电子科技大学, 2004.
	Xu Xiaoping . Research on digital signal processing of FMCW radar altimeter[D]. Chengdu:University of Electronic Science and Technology of China, 2004.
[3]	张树平 . LFMCW雷达高度表系统建模与仿真[D]. 西安:beoplay体育提现, 2007.
	Zhang Shuping . Modeling and simulation of LFMCW radar altimeter system[D]. Xi’an:Xidian University, 2007.
[4]	陈祝明, 丁义元, 向敬成 . 采用Chirp-Z变换提高LFMCW雷达的测距离精度[J]. 信号处理, 2002,18(2):110-112.
	Chen Zhuming, Ding Yiyuan, Xiang Jingcheng . Improving the accuracy of LFMCW radar range measurement by Chirp-Z transform[J]. Signal Processing, 2002,18(2):110-112.
[5]	郭伟, 张俊荣, 张升伟 . 机载海洋雷达高度计工作模式及数据处理[J]. 遥感技术与应用, 1995(4):25-36.
	Guo Wei, Zhang Junrong, Zhang Shengwei . Working mode and data processing of airborne radar altimeter[J]. Remote Sensing and Application, 1995(4) : 25-36.
[6]	赵为伟, 宋晓伟 . 机载雷达技术的发展现状及趋势[J]. 电子科技, 2018,31(1):79-81.
	Zhao Weiwei, Song Xiaowei . Current situation and prospect for technology of airborne radar[J]. Electronic Science and Technology, 2018,31(1):79-81.
[7]	Angino G, Impagnatiello F, Zelli C . High spatial resolution radar altimetry for global earth topography mapping[J]. Geoscience & Remote Sensing, 1997(1):15-17.
[8]	Halimi A, Mailhes C, Tourneret J Y , et al. A semi-analytical model for delay/Doppler altimetry and its estimation algorithm[J]. IEEE Transactions on Geoscience & Remote Sensing, 2014,52(7):4248-4258.
[9]	曹雷, 薛平贞 . 基于模型驱动设计方法的雷达仿真系统实现[J]. 电子科技, 2013,26(10):56-58.
	Cao Lei, Xue Pingzhen . Implementation of radar simulation system based on model-driven[J]. Electronic Science and Technology, 2013,26(10):56-58.
[10]	王飞 . 基于模型驱动架构的仿真系统设计与实现[D]. 北京:北京邮电大学, 2007.
	Wang Fei . Design and implementation of simulation system based on model driven architecture[D]. Beijing:Beijing University of Posts and Telecommunications, 2007.
[11]	陈丁, 王放, 李婷婷 , 等. 通用雷达信号场景系统的研制[J]. 电子科技, 2014,27(6):66-68.
	Chen Ding, Wang Fang, Li Tingting , et al. Development on a universal scene system for generating radar signal[J]. Electronic Science and Technology, 2014,27(6):66-68.
[12]	杨万海 . 雷达系统建模与仿真[M]. 西安: beoplay体育提现, 2007.
	Yang Wanhai . Radar system modeling and simulation[M]. Xi’an: Xidian University, 2007.
[13]	李承志, 李炜 . 雷达仿真系统场景生成模块设计[J]. 火控雷达技术, 2012,41(3):18-21.
	Li Chengzhi, Li Wei . Design of scenario generation module for radar simulation system[J]. Fire Control Radar Technology, 2012,41(3):18-21.
[14]	侯俊利, 黄波 . 一种新的雷达信号环境模拟技术[J]. 电子信息对抗技术, 2012,27(5):54-57.
	Hou Junli, Huang Bo . A new radar signal environment simulation technology[J]. Electronic Information Warfare Technology, 2012,27(5):54-57.
[15]	郭川川, 井塬塬 . 一种机载雷达地杂波仿真的快速算法[J]. 电子科技, 2013,26(1):127-130.
	Guo Chuanchuan, Jing Yuanyuan . A fast algorithm for ground clutter simulation of airborne radar[J]. Electronic Science and Technology, 2013,26(1):127-130.
[16]	程爱军 . 雷达回波信号模拟与仿真[D]. 南京:南京理工大学, 2004.
	Cheng Aijun . Simulation and simulation of radar echo signal[D]. Nanjing:Nanjing University of Science & Technology, 2004.
[17]	李建军, 于利娟, 刘璇 , 等. 一种沙漠场景地杂波雷达散射截面的仿真方法[J]. 电子科技, 2013,26(2):13-16.
	Li Jianjun, Yu Lijuan, Liu Xuan , et al. Simulation of desert scene for land clutter radar cross section[J]. Electronic Science and Technology, 2013,26(2):13-16.
[18]	熊兴斌, 王红, 赵选峰 , 等. 地杂波雷达截面积模型性能对比分析[J]. 舰船电子对抗, 2007,30(1):68-71.
	Xiong Xingbin, Wang Hong, Zhao Xuanfeng , et al. Comparison and analysis of the performance of ground clutter RCS models[J]. Shipboard Electronic Countermeasure, 2007,30(1):68-71.
[19]	姜来春 . 高精度测量雷达动态精度分析方法研究[J]. 电子科技, 2014,27(7):51-54.
	Jiang Laichun . Research on dynamic accuracy in high precision measurement radar[J]. Electronic Science and Technology, 2014,27(7):51-54.

算法	半功率点	波门分裂	最小均方误差拟合	高度 /m
高度估计均方根误差/m	0.867 8	0.600 1	0.571 8	1 000
高度估计均方根误差/m	4.591 4	4.151 7	1.026 1	3 000
高度估计均方根误差/m	8.274 7	8.018 4	1.370 3	6 000

Research on Minimum Mean Square Error Fitting Height Estimation Algorithm for Radar Altimeter

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 6

References 19

Related Articles 2

Metrics

Comments

Recommended 10

[1]	LI Xinxin,HUANG Wei. Simulation and Analysis of Dispersion Characteristics of Warhead Fragments in Radar Beam [J]. , 2014, 27(7): 54-.
[2]	LIU Duo,HUANG Xiaoyan. VTS Radar Plane Position Indicator Display Optimization Based on Direct3D Technology [J]. , 2014, 27(5): 5-.