SPECTRAL CHARACTERISTICS OF LOW-ANGLE RADAR GROUND CLUTTER

Authors
  1. Chan, H.C.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
A detailed analysis of low-angle ground clutter spectral chracteristics was carried out using the MIT Lincoln Laboratory Phase I data and the DREO S-band clutter data. Both the fast Fourier transform and a super-resolution spectral analysis technique were used. Results showed that a ground clutter spectrum comprises three components, namely, (a) a coherent component, (b) a slow-diffuse component and (c) a fast-diffuse component. Both the coherent component and the slow-diffuse component may be modelled as a symmetrical negative expontial density function. The fast-diffuse component may be modelled as a band-limited noise. Model parameters included the spectral slopes, the spectral density at zero Doppler and the cutoff frequency of the fast-diffuse component. The spectral slopes of the slow-diffuse component at various wind speeds have been calculated from the clutter data. TRUNCATED
Report Number
DREO-1020 —
Date of publication
15 Dec 1989
Number of Pages
53
DSTKIM No
90-01809
CANDIS No
64076
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

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