Title :
Sensor alignment with Earth-centered Earth-fixed (ECEF) coordinate system
Author :
Zhou, Yifeng ; Leung, Henry ; Blanchette, Martin
Author_Institution :
Defense Res. Establ., Ottawa, Ont., Canada
fDate :
4/1/1999 12:00:00 AM
Abstract :
In this work, we formulate the multiple sensor alignment problem in an Earth-centered Earth-fixed (ECEF) coordinate system. The alignment algorithm maps the sensor measurements to the ECEF coordinates using a geodetic transformation, and attributes the discrepancies in the Earth-referenced system reported by each sensor to the sensor biases. Sensor biases are then estimated using the least squares (LS) technique. Simulated and real-life radar data are used to evaluate the performance of the proposed algorithm. Comparisons are made to those algorithms based on the standard stereographic projection
Keywords :
geodesy; least squares approximations; radar signal processing; radar tracking; search radar; sensor fusion; surveillance; target tracking; Earth-centered Earth-fixed coordinate system; Earth-referenced system; alignment algorithm; approximation error analysis; geodetic transformation; least squares technique; multiple sensor alignment problem; real-life radar data; registration algorithm; sensor biases; sensor network surveillance; simulated radar data; Azimuth; Coordinate measuring machines; Earth; Electric variables measurement; Least squares approximation; Least squares methods; Radar; Sensor phenomena and characterization; Sensor systems; Surveillance;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
