Title :
Adaptive Polarized Waveform Design for Target Tracking using Electromagnetic Vector Sensors
Author :
Tong Zhao ; Hurtado, Martin ; Nehorai, Arye
Author_Institution :
Dept. of Electr. & Syst. Eng., St. Louis Washington Univ., MO, USA
Abstract :
We develop an adaptive waveform design method for target tracking. In our method, at each time step, we optimally select the parameters, including the polarization of the transmitted signal waveform to improve the tracking accuracy. An array of electromagnetic vector sensors is employed to fully recover the polarimetric information from the reflected signals. We derive our approach under a framework of sequential Bayesian filtering. We apply a sequential Monte Carlo method to manipulate the nonlinear and non-Gaussian state and measurement models. We design a criterion for the waveform optimization based on a posterior Cramer-Rao bound.
Keywords :
Bayes methods; Monte Carlo methods; array signal processing; electromagnetic devices; electromagnetic wave polarisation; filtering theory; matrix algebra; target tracking; Cramer-Rao bound; adaptive polarized waveform design; electromagnetic vector sensor array; reflected signals; sequential Bayesian filtering; sequential Monte Carlo method; target tracking; transmitted signal waveform polarization; Bayesian methods; Design methodology; Electromagnetic measurements; Electromagnetic scattering; Electromagnetic wave polarization; Filtering; Radar scattering; Radar tracking; Sensor arrays; Target tracking; Adaptive waveform design; electromagnetic vector sensors; sequential Bayesian filtering; sequential Monte Carlo methods; target tracking;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.366436