Abstract: A system and method for detecting a target object through foliage includes a transmitter for generating a low-frequency electromagnetic signal. The signal is directed toward a potential target object for reflection from the potential target object. The system further includes a plurality of mutually dispersed sensors for receiving the reflected signal from the target object. A mechanism is provided to determine the relative locations of the sensors. Signal information from the received signals is sent to a central processor. The central processor inputs the signal information into a beamformer algorithm such as the Maximum Likelihood Method (MLM) to reduce sidelobe ambiguities and resolve the true location of the target from the signal information.
Type:
Grant
Filed:
February 13, 2003
Date of Patent:
April 20, 2004
Assignee:
Information Systems Laboratories
Inventors:
John Don Carlos, David R. Kirk, Jameson Bergin, Paul M. Techau, J. Doss Halsey