Title :
Forward-looking radar GMTI benefits using a linear frequency diverse array
Author :
Baizert, P. ; Hale, T.B. ; Temple, M.A. ; Wicks, M.C.
Author_Institution :
Dept. of Electr. Eng., Air Force Inst. of Technol., AFIT/ENG, OH
Abstract :
The ability to suppress range ambiguous clutter is difficult for forward-looking arrays in GHTI processing. Use of linear frequency diverse array (FDA) is proposed, whereby each array channel operates at a different frequency and produces a range dependent pattern. The FDA significantly increases output signal-to-interference plus noise ratio (SINR) at the range ambiguous clutter Doppler, suggesting detection improvement. Output SINR is shown to increase by as much as 40 dB when compared to a constant frequency array
Keywords :
Doppler radar; antenna arrays; object detection; radar antennas; radar clutter; radar detection; GMTI benefits; antenna pattern; forward-looking linear arrays; forward-looking radar; ground-moving target; linear frequency diverse array; radar horizon; radar maximum unambiguous range; range ambiguous clutter Doppler; signal-to-interference noise ratio;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20062791
