典型文献
State estimation in range coordinate using range-only measurements
文献摘要：
In some tracking applications, due to the sensor cha-racteristic, only range measurements are available. If this is the case, due to the lack of full position measurements, the observ-ability of Cartesian states (e.g., position and velocity) are limited to particular cases. For general cases, the range measurements can be utilized by developing a state estimation algorithm in range-Doppler (R-D) plane to obtain accurate range and Doppler estimates. In this paper, a state estimation method based on the proper dynamic model in the R-D plane is proposed. The unscented Kalman filter is employed to handle the strong nonlin-earity in the dynamic model. Two filtering initialization methods are derived to extract the initial state estimate and the initial covariance in the R-D plane from the first several range mea-surements. One is derived based on the well-known two-point differencing method. The other incorporates the correct dyna-mic model information and uses the unscented transformation method to obtain the initial state estimates and covariance, re-sulting in a model-based method, which capitalizes the model information to yield better performance. Monte Carlo simulation results are provided to illustrate the effectiveness and superior performance of the proposed state estimation and filter initializa-tion methods.
文献关键词：
中图分类号：
作者姓名：
LI Keyi;GUO Zhengkun;ZHOU Gongjian
作者机构：
School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150001,China
文献出处：
引用格式：
[1]LI Keyi;GUO Zhengkun;ZHOU Gongjian-.State estimation in range coordinate using range-only measurements)[J].系统工程与电子技术（英文版）,2022(03):497-510
A类：
racteristic,observ,capitalizes,initializa
B类：
State,estimation,range,coordinate,using,only,measurements,In,some,tracking,applications,due,sensor,cha,are,available,If,this,lack,full,position,ability,Cartesian,states,velocity,limited,particular,cases,For,general,can,utilized,by,developing,algorithm,Doppler,plane,obtain,accurate,estimates,paper,proper,dynamic,model,proposed,unscented,Kalman,employed,handle,strong,nonlin,earity,Two,filtering,initialization,methods,derived,extract,covariance,from,first,several,One,well,known,two,point,differencing,other,incorporates,correct,information,uses,transformation,sulting,which,yield,better,performance,Monte,Carlo,simulation,results,provided,illustrate,effectiveness,superior
AB值：
0.482984
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