基于条件后验克拉美–罗下界的目标跟踪传感器管理-控制理论与应用.PDF

30 5 Vol. 30 No. 5 2013 5 Control Theory Applications May 2013 DOI: 10.7641/CTA.2013.20878 – , , , (1. , 710064; 2. , 710049) – : , (CPCRLB) . (RSS), RSSCPCRLB. CPCRLB, . , – CPCRLB, . CPCRLB (PCRLB) , CPCRLB. – : ; ; ; ; : TP273 : A Sensor management for target tracking based on conditional posterior Cramr-Rao lower bounds YANG Xiao-jun , MA Xiang , SONG Qing-song , XING Ke-yi (1. School of Information Engineering, Chang’an University, Xi’an Shaanxi 710064, China; 2. Institute of System Engineering, Xi’an Jiaotong University, Xi’an Shaanxi 710049, China) Abstract: For target tracking in the sensor networks, a sensor management scheme is proposed based on conditional posterior Cramr-Rao lower bounds (CPCRLB). The measurement in the sensor is the received signal strength (RSS) from the target. The CPCRLB on the mean squared error of target state estimate is derived based on RSS measurements. The CPCRLB is used as the criterion for activating a set of optimal sensors to involve in the target tracking. The particle filtering is employed to estimate the target state and CPCRLB approximately. The online sensor selection is achieved by particle filtering. The sensor selection schemes based on CPCRLB, unconditional posterior Cramr-Rao lower bounds (PCRLB) and mutual information are compared by simulations. The simulation results demon