Title :
Multipath and ground clutter analysis for a UWB noise radar
Author :
Dawood, Muhammad ; Narayanan, Ram M.
Author_Institution :
Nebraska Univ., USA
fDate :
7/1/2002 12:00:00 AM
Abstract :
An ultrawideband (UWB) random-noise radar operating in the 1-2 GHz frequency band has been developed and field-tested up to a 200 m range at the Environmental Remote Sensing Laboratory (ERSL) of the University of Nebraska. A unique heterodyne correlation technique based on a delayed transmitted waveform using a photonic delay line has been used to inject coherence within this system. The performance of this radar in the presence of ground reflections is investigated analytically and experimentally, and the mitigating effects of UWB waveform on multipath-induced interference are analyzed. In addition, the ground clutter statistics, in a look-down mode, are theoretically established and experimentally verified. The performance of this radar in detecting clutter embedded targets with small radar cross section (RCS) is also experimentally examined.
Keywords :
heterodyne detection; multipath channels; radar clutter; radar cross-sections; remote sensing by radar; terrain mapping; 0 to 200 m; 1 to 2 GHz; Environmental Remote Sensing Laboratory; University of Nebraska; clutter embedded targets; coherence; delayed transmitted waveform; ground clutter statistics; ground reflections; heterodyne correlation technique; multipath-induced interference; photonic delay line; small radar cross section; ultrawideband random-noise radar; Frequency; Performance analysis; Propagation delay; Radar clutter; Radar cross section; Radar remote sensing; Remote sensing; Ultra wideband radar; Ultra wideband technology; Working environment noise;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2002.1039403
