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ISSN : 1738-6764

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Vol.1 No.2
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A Design of Simple and Precision Direction Finder with a Combination of an Amplitude Measurement and Phase Measurement

INTERNATIONAL JOURNAL OF CONTENTS / INTERNATIONAL JOURNAL OF CONTENTS, (P)1738-6764; (E)2093-7504
2005, v.1 no.2, pp.35-38
Lim Joong-Soo (Division of Information and Communications, Cheonan University, Radiowave Detection Research Center, KAIST)
Lim Joong-Soo. (2005). A Design of Simple and Precision Direction Finder with a Combination of an Amplitude Measurement and Phase Measurement. INTERNATIONAL JOURNAL OF CONTENTS, 1(2), 35-38.

Abstract

This paper describes a design of simple and precision direction finder that can be adapted to shipboard or mobile vehicles used for Electronic support measure, ELINT and radio signal monitoring systems. The direction finding technology has improved with monolithic integrated circuit, linear array antennas, and interferometer. Interferometer uses the phase-comparison principle and has a good direction finding accuracy but it has an ambiguity problem. We suggest a simple ambiguity solver using phase-comparison technology with amplitude-comparison principle. The direction finding device that has been designed by the suggested method has 0.7 degree RMS error in azimuth angle and 0.6 degree RMS error in elevation angle in 0.5 - 2.0 GHz.

keywords
phase-comparison, direction finding, amplitude-comparison, ambiguity, interferometer

INTERNATIONAL JOURNAL OF CONTENTS

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