NDLI: JIE for a class of MD systems

Content Provider	IET Digital Library
Author	Feng, Xiaoxue Liang, Yan Jiao, Lianmeng He, Chongyang
Abstract	In multi-detection (MD) systems including over-the-horizon radar (OTHR) systems, the forward-based receivers systems and passive coherent location systems, resolvable multiple detections of one target due to the multi-path propagation will be received, in which both identification (including measurement association and propagation mode/transmitting origin identification) and estimation (including path-conditional state estimation and multi-path track fusion) are deeply coupled and affect each other. Up to present, all corresponding methods fall into the scope of sequential identification orientated or estimation orientated processing, and hence the solutions are not satisfactory. Here the joint identification and estimation scheme for the MD systems (MD-JIE) is developed based on the generalized Bayes risk considering both identification and estimation performance. The likelihood-ratio function and the conditional probability density function as the identification cost and estimation cost are recursively calculated, respectively. Taking the data-association constraints into consideration, the proposed MD-JIE scheme is implemented via online constrained optimization technology. Compared to the identification-then-estimation (ITE) method and the estimation-then-identification (ETI) method, the proposed MD-JIE method prevails in the joint performance measure with the higher correct identification rate than the ETI method and the smaller root MSE than the ITE method. Besides, the robustness of the proposed method is verified.
Starting Page	647
Ending Page	656
Page Count	10
ISSN	17519675
Volume Number	11
e-ISSN	17519683
Issue Number	Issue 6, Aug (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-spr/11/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2015.0422
Journal	IET Signal Processing
Publisher Date	2017-02-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bayes Method Conditional Probability Density Function Data-association Constraint Forward-based Receiver System Generalised Bayes Risk Interpolation And Function Approximation Joint Identification And Estimation Scheme Least Mean Squares Method Likelihood-ratio Function MD-JIE Scheme Minimum-mean-square-error Multidetection System Numerical Analysis Over-the-horizon Radar System Passive Coherent Location System Probability Radio Link And Equipment Receiver Sensor Fusion Signal Detection Statistics
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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