α-β滤波方法研究

本科学生毕业论文α-β滤波方法研究系部名称：电子工程系专业班级：电子信息工程B02-33班学生姓名：祝希兰指导教师：王司职称：副教授黑龙江工程学院二○○六年六月TheGraduationThesisforBachelor'sDegreeStudyonTheMethodofα-βFilteringCandidate：ZhuXilanSpecialty：ElectronicInformationEngineeringClass：B02-33Supervisor：AssociateProf.WangSiHeilongjiangInstituteofTechnology2006-06·Harbin毕业设计（论文）任务书题目α-β滤波方法研究一、设计（论文）内容对α-β滤波方法进行MATLAB编程，使其对所给数据进行滤波。二、设计（论文）要求1、理解并掌握相关理论基础知识。2、滤波程序准确无误。3、滤波参数选取合适。4、滤波结果可靠、正确。三、设计完成后应提交的文件和图表（一）计算说明部分滤波程序毕业论文（二）图纸部分滤波曲线图四、设计进度分配及最后完成日期设计进度：第01～02周：课题调研和开题报告第03～04周：滤波方法研究第05～10周：软件的开发和设计第10～11周：综合测试与试用第12～13周：归纳总结相关结果第14～15周：撰写论文完成时间：2006年6月10日五、主要参考资料参考文献：[1]王永德,王军.随机信号分析基础.电子工业出版社,2003.6.[2]刘利生，曹坤梅，胡东华.再入（返回）测量的自校准α-β-γ滤波：飞行器测控学报，2004.3.[3]伯晓晨.MATLAB工具箱应用指南（信息工程篇）：电子工业出版社，2000.[4]何友,王国宏.多传感器信息融合及应用[M].电子工业出版社,2000.[5]JoyceVandeVegte．数字信号处理基础．侯正信，王安国．电子工业出版社，2004.[6]宋丽荣.现代控制理论基础[M].沈阳：中国电力出版社，2006：PP146-231.[7]王翼.现代理论控制[M].北京:机械工业出版社，2005：PP365-371.[8]李海涛，邓樱.MATLAB程序设计教程[M].北京：高等教育出版社，2002：PP256-280.[9]于润伟.MATLAB基础及其应用[M].北京：机械工业出版社，2003.9：PP98-102.[10]刘利生，曹坤梅，胡东华.再入（返回）测量的自校准α-β-γ滤波[M].飞行器测学报，2004.3.六、备注指导教师王司教研室主任叶树江教研室地址实验楼514通讯联系方式[e-mail]固定指导时间每周五下午固定指导地点实验楼514黑龙江工程学院本科生毕业论文I摘要本文分析了激光陀螺的工作原理，介绍了激光陀螺的性能特点，以及激光陀螺具有传统的机电陀螺和其他类型陀螺所无法比拟的优点，但是其性能特征与捷联惯性导航对惯性测量元件的要求有一定差距，这就需要对其特性加以改进。尽管如此，与其它惯性器件相比，它的军事应用、航天前景十分广阔。激光陀螺在惯性技术领域的地位已经确立，目前它已经发展成为惯性导航的主流仪表之一。但激光陀螺中存在着各种噪声，影响了激光陀螺的输出信号精度，本文就是通过对在导航过程中的某一点采集的激光陀螺的脉冲数据，对其噪声特性进行分析，并选择α-β滤波方法，滤除其中的噪声信号，使激光陀螺的精度得到提高，同时也使它的适用范围从航天、军事等高科技领域到其它普通领域。关键词：α-β滤波；惯性导航；激光陀螺；噪声；状态方程黑龙江工程学院本科生毕业论文IIABSTRACTThisessayanalyzedtheworkingprinciple，introducedfeaturesofthelasergyroandlasergyrohaspredominantadvantagesoverelectric-mechanicalandothertypesofgyros.Itmeetsthedemandsofstrap-downnavigationsystemtoinertiameasureequipmentincompleteandneedtoimprove,butithasaverystrongapplicationinmilitaryaffairsandaviationthenothers.Thelasergyro’positionininertialtechnicalisdefinite,nowithasbeendevelopedtobeoneofthemaingauges.Buttherealsoexistsomekindsofnoisesinlasergyro,andthenaffectedthecorrectnessofoutputsignal,thisessayanalyzedthelasergyro’snoisecharacterthroughsomedatacollectedfromlasergyro,andchoosethemethodofα-βfiltering,filteroffthenoisesignal,thencarryupthecorrectnessoflasergyro’soutputsignal,meanwhileexpenditsusingdistrictfromaviationandmilitarytoothernormaldistrict.Keywords：α-βFiltering；InertialNavigation；RingLaserGyro；Noise；StateEquation黑龙江工程学院本科生毕业论文目录摘要··············································································错误!未定义书签。Abstract·········································································错误!未定义书签。第1章绪论································································错误!未定义书签。1.1课题背景································································错误!未定义书签。1.2研究目的································································错误!未定义书签。第2章激光陀螺简介··················································错误!未定义书签。2.1激光陀螺································································错误!未定义书签。2.1.1激光陀螺的基本原理···········································错误!未定义书签。2.1.2激光陀螺的产生·················································错误!未定义书签。2.1.3激光陀螺的优势··················································错误!未定义书签。2.2激光陀螺的国内外现状··············································错误!未定义书签。2.2.1激光陀螺的国外现状···········································错误!未定义书签。2.2.2激光陀螺的国内现状···········································错误!未定义书签。2.3激光陀螺零偏误差····················································错误!未定义书签。2.3.1激光陀螺的误差分析···········································错误!未定义书签。2.3.2激光陀螺的测试方法···········································错误!未定义书签。2.3.3温度误差模型的建立和补偿··································错误!未定义书签。2.4激光陀螺的发展前景及存在的主要问题························错误!未定义书签。2.4.1激光陀螺的发展前景···········································错误!未定义书签。2.4.2激光陀螺的主要问题················································错误!未定义书签。2.5本章小结································································错误!未定义书签。第3章状态空间理论··················································错误!未定义书签。3.1系统的状态空间方程·················································错误!未定义书签。3.2状态估计································································错误!未定义书签。黑龙江工程学院本科生毕业论文II3.3本章小结································································错误!未定义书签。第4章简单滤波器设计···············································错误!未定义书签。4.1简单滤波器的性质····················································错误!未定义书签。4.1.1简单滤波器原理·················································错误!未定义书签。4.1.2简单滤波器计算步骤···········································错误!未定义书签。4.2三阶滤波器···························································错误!未定义书签。4.3本章小节································································错误!未定义书签。第5章基于MATLAB的源程序以及仿真结果·················错误!未定义书签。5.1MATLAB简介····························································错误!未定义书签。5.2数据录入程序及其仿真结果············································错误!未定义书签。5.2.1数据录入源程序·················································错误!未定义书签。5.2.2MATLAB的图像显示程序与仿真结果························错误!未定义书签。5.3简单滤波源程序·········································