TELECOMMUNICATIONS AND RADIO ENGINEERING - 2011 Vol. 70,
No 7 		 

 

 

 

SIMULATING ELEVATION ANGLE MEASUREMENTS OF LOW ALTITUDE TARGETS BY A MULTIFREQUENCY RADAR OPERATED IN THE OFF-AXIAL MODE



Y.A. Pedenko
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine
E-mail: pedenko@ire.kharkov.ua

Abstract
The paper presents results of computer simulation of elevation angle measurements of low altitude targets over a rough sea, as performed by a triple-frequency monopulse radar operated in the off-axial measurement mode. The statistics of measurement errors have been studied in dependence on frequency diversity for a variety of sea roughness conditions and various phase differences between the ‘direct’ signal from the target and its specular reflection nu the interface. By increasing the number of operating frequencies of the monopulse radar from one to three it is possible to greatly reduce the errors of low-altitude elevation angle measurements in the case of off-axial operation.

KEY WORDS: off-axial operating mode, multiple-frequency radar, low altitude target, multiray propagation mode, elevation angle measurements, computer simulation

References

  1. Barton, D., (1974), Radar tracking of low elevation target, IEEE Proceedings. 62(6):37-61.
  2. Dax, P.R., (1976), Keep track of that low-flying attack, Microwaves. 15(4):36-51.
  3. De Hek, A.P. and Hunneman, P.A.H., (2000), Small sized high-gain PHEMT high power amplifiers for X-band applications, Proc. of GAAS-2000 – Gallium Arsenide Applications Symp. Paris, France, pp.221-223.
  4. Pedenko, Y.A., (2010), Modeling of Elevation Angles Measurement of Low-Flying Targets by Multifrequency Monopulse Radar, Telecommunications and Radio Engineering. 69(9):785-797.
  5. Razskazovsky, V.B. and Pedenko, Y.A., (2007), Radar Tracking of Low-Altitude Targets Aver the Sea Surface, Telecommunications and Radio Engineering. 66(19):1711-1724.
  6. Dax, P.R., (1973), Accurate tracking of low elevation targets over the sea with a monopulse radar, IEE Conference. Radar-Present and Future, London, pp.160-165.
  7. Razskazovsky, V.B. and Pedenko, Y.A., (2003), Modeling Millimeter and Centimeter Wavelength Fields over the Sea in the Analysis of Elevation Angle Estimation Methods for Low-Flying Aerial Targets, Telecommunications and Radio Engineering. 59(3-4):82-100.


pages 563-576

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