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Distance Tracking Of α-β-γ Filters

Posted on:2001-07-25Degree:MasterType:Thesis
Country:ChinaCandidate:S H XuFull Text:PDF
GTID:2168360002951594Subject:Aeronautical engineering
Abstract/Summary:PDF Full Text Request
Recently, digital technology has greatly accelerated the development inradar technology. Tracking target is one of the important problems in radartechnology, in both military and civilian fields, for instance, in air defenseand in air膖raffic control, tracking target in a reliable and accurate modehas always been the main objective in the design of target tracking system.a ?P &. a ??y filters , as simplified Kalman filters, have been widely usedin radar tracking system because of its advantages of low computation, highprecision and quick response when target maneuvering. In this paper , forAirborne Pulse Doppler radar, and to state it succinctly, accurately andstably of tracking target, a ?P &. a ?P ?y filters and its applicationproblems have been studied:Firstly, starting with models of maneuvering targets, this paper hasdiscussed the following models and there advantages or shortcomings:differential polynomial model, CV and CA models, time腸orrelated model,semi腗arkov model, Noval statistical model and current statistical model;Secondly, various basic methods of tracking filtering and prediction havebeen discussed such as Liner Regression filter, Two膒oint Extrapolator,Wiener filter, Weighted Least膕quare filter, a ?~ &. a ?P ?y filters,Kalman filter, simplification Kalman filter as well. And their performanceshave also been evaluated;Thirdly, adaptive filtering problem of target tracking has been discussed,and detection adaptive filtering, real膖ime adaptive filtering, overalladaptive filtering have been introduced. Comparison and conclusion have beenmade;Fourthly, a ?$ &. a ?P ?Y filters and their specifications andparameters selection have been emphasized in this paper;Last, computer膕imulation experiments have been carried out, and thecorresponding conclusions are available.In this paper, the relationship between digital processing system andtracking servo system, tracking coordinate transformation, multiple targetstracking and data fusion are not involved.
Keywords/Search Tags:α-β&α-β-γ filters, tracking and prediction, maneuveringtarget model, adaptive filtering, maneuvering detection
PDF Full Text Request
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