Abstract

The measurements from multistatic radar systems are typically subjected to complicated data association, noise corruption, missed detection, and false alarms. Moreover, most of the current multistatic Doppler radar-based approaches in multitarget tracking are based on the assumption of known detection probability. This assumption can lead to biased or even complete corruption of estimation results. This paper proposes a method for tracking multiple targets from multistatic Doppler radar with unknown detection probability. A closed form labeled multitarget Bayes filter was used to track unknown and time-varying targets with unknown probability of detection in the presence of clutter, misdetection, and association uncertainty. The efficiency of the proposed algorithm was illustrated via numerical simulation examples.

Highlights

  • Initiated from the 1930s from a very simple device for aircraft detection, the radar has been developed into complicated systems in both civilian applications and modern warfare for the purposes of prevention as well as interception strategies [1]

  • A passive multistatic radar system is realized with either one receiver and multiple transmitters or a single transmitter combined with multiple radar receivers

  • We considered a multistatic passive Doppler radar system consisting of one cooperative transmitter and two spatially stationary distributed receivers

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Summary

Introduction

Initiated from the 1930s from a very simple device for aircraft detection, the radar has been developed into complicated systems in both civilian applications and modern warfare for the purposes of prevention as well as interception strategies [1]. In multitarget tracking, there are generic challenges, such as unknown and randomly time-varying number of the targets, detection uncertainty, clutter, and data association uncertainty [6], as well as nonlinearity and low observability of the Doppler measurement [7,8]. Based on the RFS approach, this paper proposes a solution to the challenges in using Doppler-only measurement for multiple marine vessels tracking with unknown detection parameter a priori in a timely manner. This is an extension of our previous work, reported in Reference [39]. Validation of the proposed solution is illustrated by numerical simulations on marine ships, followed by some concluding remarks

Multistatic Doppler Measurement Model
Labeled RFS
Bayesian Multitarget Recursion
Multitarget State Model
Multitarget Observation Model
Multisensor GLMB Recursion
Adaptive to Unknown Detection Probability
Implementation
Numerical Studies
Conclusions
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