Title :
Radar Estimation of Building Layouts Using Jump-Diffusion
Author :
Nikolic, Marija M. ; Ortner, Mathias ; Nehorai, Arye ; Djordjevic, Antonije R.
Author_Institution :
Dept. of Electr. & Syst. Eng., Washington Univ., St. Louis, MO
Abstract :
Estimating buildings layouts using exterior radar measurements is a challenging task involving the electromagnetic modeling, many unknown parameters, and limited number of sensors. We propose using the jump-diffusion algorithm as a powerful stochastic tool that can be used to determine the number of walls, estimate their unknown positions and other parameters. We improve the convergence rate of the jump-diffusion algorithm by developing an iterative procedure that first finds low- resolution estimates, which are then used to initiate our more accurate estimation. Our efficient usage of the available frequency bandwidth, improves the computational speed that otherwise would be hampered by the forward electromagnetic modeling.
Keywords :
computational electromagnetics; iterative methods; radar resolution; remote sensing by radar; building layout; electromagnetic modeling; iterative procedure; jump-diffusion algorithm; low-resolution estimation; radar estimation; radar measurement; stochastic tool; Admittance; Bandwidth; Computational modeling; Dielectric losses; Electromagnetic modeling; Frequency estimation; Iterative algorithms; Military computing; Probes; Radar; Jump-diffusion; through the wall-sensing;
Conference_Titel :
Computational Advances in Multi-Sensor Adaptive Processing, 2007. CAMPSAP 2007. 2nd IEEE International Workshop on
Conference_Location :
St. Thomas, VI
Print_ISBN :
978-1-4244-1713-1
Electronic_ISBN :
978-1-4244-1714-8
DOI :
10.1109/CAMSAP.2007.4497994