29 June 1994 Test measurements and calibration problems of a direction-finding system based on a five-channel direction on arrival (DOA) processor
Author Affiliations +
Abstract
In this paper we describe and investigate an acoustooptic system capable for detecting and simultaneously determining both the frequencies and directions of several RF sources with short transmission time. Test measurements of the system have been carried out both in laboratory and real environment. Correction of aberrations of the optical system, correction of the frequency- phase difference characteristics of the antenna array, digital filtering of the output intensity distribution, spurious signal suppression, distinguishing CW and hopping signals; and improving the hopping signal resolution using histograms have been demonstrated. High angular resolution of 1 - 2 degree(s) and frequency accuracy of < 100 kHz for both CW and hopping signals in a relatively broad frequency range have been achieved.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Laszlo Jakab, Attila Barocsi, Peter I. Richter, Istvan Szonyi, T. Rath, "Test measurements and calibration problems of a direction-finding system based on a five-channel direction on arrival (DOA) processor", Proc. SPIE 2240, Advances in Optical Information Processing VI, (29 June 1994); doi: 10.1117/12.179138; https://doi.org/10.1117/12.179138
PROCEEDINGS
7 PAGES


SHARE
Back to Top