Test measurements and calibration problems of a direction-finding system based on a five-channel DOA processor

Laszlo Jakab; Attila Barocsi; Peter I. Richter; Istvan Szonyi; T. Rath

doi:10.1117/12.179138

29 June 1994 Test measurements and calibration problems of a direction-finding system based on a five-channel direction on arrival (DOA) processor

Laszlo Jakab, Attila Barocsi, Peter I. Richter, Istvan Szonyi, T. Rath

Author Affiliations +

Proceedings Volume 2240, Advances in Optical Information Processing VI; (1994) https://doi.org/10.1117/12.179138
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

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.

Citation Download Citation

Laszlo Jakab, Attila Barocsi, Peter I. Richter, Istvan Szonyi, and 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); https://doi.org/10.1117/12.179138

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