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2023 Journal Impact Factor - 0.7
2023 CiteScore - 1.4
ISSN 2083-6473
ISSN 2083-6481 (electronic version)
Editor-in-Chief
Associate Editor
Prof. Tomasz Neumann
Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
e-mail transnav@umg.edu.pl
Impact of Internal and External Interferences on the Performance of a FMCW Radar
1 Telecommunication Research Institute Ltd., Gdansk, Poland
ABSTRACT: Although FMCW technology has become by now mature, there are still some unsolved problems left. First group of them are noise and distortion from own transmitter or receiver. They are usually caused by DDS (Direct Digital Synthesis) and power converters performance. They appear on radar display as circles or arcs because of their isotropic properties. Second group are interferences from external world like beams of pulsed radars working in the same frequency band, reflections from close buildings and installations or sea clutter. Apart from creating artificial echoes of target they can cause degradation of radar tracking system. This paper evaluates influence of internal and external sources of interferences on the FMCW radar performance. DSP (Digital Signal Processing) algorithms which optimize detection of FMCW radar were presented. Means of suppressing analog interferences by digital techniques were shown as well.
KEYWORDS: Radar, Navigational Equipment, FMCW Radar, Frequency Modulated Continuous Wave (FMCW), Interferences on the Radar Performance, Digital Processing Unit (DPU), Digital Signal Processing (DSP), Direct Digital Synthesis (DDS)
REFERENCES
Keith D. Ward, Robert J.A. Tough and Simon Watts. “Sea Clutter: Scattering, the K Distribution and Radar Performance” . Institution pf Engineering and Technology, London 2006
Conte E. “Clutter-Map Detection for Range –Spread Targets un Non-Gaussian Clutter.” IEEE Transaction on aerospace and electronic systems Vol. 33 April 1997
Khalighi M.A. “Adaptive CFAR Processor For Nonhomogeneous Environments” IEEE Transaction on aerospace and electronic systems Vol. 36 July 2000
Nadav Levanon “Radar Principles” Wiley Interscience Publication 1988
Citation note:
Paprocki P.: Impact of Internal and External Interferences on the Performance of a FMCW Radar. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 5, No. 3, pp. 325-328, 2011
Other publications of authors:
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