水下目标散射测量中的捷联惯导系统仿真  

Simulation of the strapdown inertial navigation system in underwater target scattering measuring

作　　者：刘丹丹[1] 王琦[2] 李厚全[3] LIU Dan-dan;WANG Qi;Li Hou-quan(Yancheng Institute of Technology,Yancheng 224003,Jiangsu Province,China;Wuhan University of Science and Technology,Wuhan 430081,China;Navy Submarine Academy,Qingdao 266042,Shandong Province,China)

机构地区：[1]盐城工学院,江苏盐城224003 [2]武汉科技大学,武汉430081 [3]海军潜艇学院,山东青岛266042

出　　处：《信息技术》2018年第6期36-39,48,共5页Information Technology

基　　金：国家自然科学基金青年基金项目(11604287);盐城工学院校级科研基金项目(KJC2014009);冶金自动化与检测技术教育部工程研究中心开放基金项目(MADT201607)

摘　　要：在应用基于合成孔径原理的水下目标散射特性测量新方法时,目标总会偏离匀速直线运动,导致图像散焦甚至无法成像,从而不能得到目标的二维散射特性,故在成像处理前,需采用运动补偿。在采用基于运动测量系统的逐点运动补偿方法时,会存在缺乏捷联惯导系统的实测数据问题。针对此问题,从捷联惯导系统的工作原理入手,结合水下目标运动的特点,给出水下目标散射测量中的捷联惯导系统仿真算法,并对该算法进行计算机仿真试验。仿真试验结果表明了捷联惯导系统仿真算法的有效性。When the new method of measuring the scattering characterization for underwater targets based on synthetic aperture principle is applied practically,the target has always motion errors relative to the ideal motion,which requires the target move along the straight line at a constant velocity. The motion errors result in the imagery not focusing or realizing, and consequently, the 2-D scattering characterization can not be obtained. Therefore motion compensation is necessary before imaging processing. When the pixel-by-pixel motion compensation method based on motion measuring system is applied,there may be a lack of the measured data of the SINS. In allusion to the above problem,starting with the working principle of the strapdown inertial navigation system,the simulation algorithm of the strapdown inertial navigation system in underwater target scattering measuring,was presented,according to the characteristics of underwater target motion. The computer simulation test results were presented.The results show that the validity of the simulation algorithm of the strapdown inertial navigation system.

关 键 词：水下目标 散射测量 捷联惯导 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]