Journal of Electronics (China)

, Volume 24, Issue 3, pp 326–331

Biased bearings-only parameter estimation for bistatic system

Article

Abstract

According to the biased angles provided by the bistatic sensors, the necessary condition of observability and Cramer-Rao low bounds for the bistatic system are derived and analyzed, respectively. Additionally, a dual Kalman filter method is presented with the purpose of eliminating the effect of biased angles on the state variable estimation. Finally, Monte-Carlo simulations are conducted in the observable scenario. Simulation results show that the proposed theory holds true, and the dual Kalman filter method can estimate state variable and biased angles simultaneously. Furthermore, the estimated results can achieve their Cramer-Rao low bounds.

Key words

Bias Bearings-only Bistatic system Kalman filter Parameter estimation 

CLC index

TP391.9 

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Copyright information

© Science Press 2007

Authors and Affiliations

  1. 1.Department of Information and Control EngineeringChangshu Institute of TechnologyChangshuChina
  2. 2.School of AutomationNanjing University of Science & TechnologyNanjingChina

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