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Based on the tangential movement ranging positioning technology research

Author: ZhouChengYou
Tutor: MouShanXiang；WangXiao
School: Nanjing University of Technology and Engineering
Course: Electronics and Communication Engineering
Keywords: Single Observer Passive Location Angle variation rate Phase Difference Rate EKF UKF Positioning error
CLC: TN95
Type: Master's thesis
Year: 2012
Downloads: 27
Quote: 0
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Abstract


The passive probe positioning system probe positioning is achieved through the use of the information of target radiation source electromagnetic waves , and thus has a hidden good , strong anti-interference ability , role distance , is an important technical means in modern electronic warfare . With the development of the anti-radiation technology , active detection system by a growing number of threats , passive positioning system received wide attention and become a hot research at home and abroad . Passive positioning technology , in-depth analysis of the research and analysis is conducted from the following aspects : First study the the azimuth positioning method and its rate of change , the system observability discuss location and tracking model . Fixed emitter and moving emitter location and tracking the use of the method of the radiation source . Secondly, the positioning of the phase difference of the rate of change of method . Fixed radiation source and movement in the two-dimensional plane , the radiation source location and tracking . Has a great influence on the positioning accuracy due to the error of the measurement parameters , the analysis of how effective and accurate access to various parameters of the method . Finally nonlinear filtering algorithm is a passive positioning system , a key technology research . This article describes the extended Kalman filter (EKF) and unscented Kalman filtering method ( UKF ) . UKF filter to overcome the shortcomings and deficiencies of the EKF filtering operation easier and improve the positioning accuracy and speed . Two algorithms for computer simulation experiments .

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