TELECOMMUNICATIONS AND RADIO ENGINEERING - 2012 Vol. 71,
No 5 		 

 

 

 

INFLUENCE PRODUCED BY THE MULTIPATH PROPAGATION OF RADIO WAVES ON ACCURACY OF MEASUREMENT OF THE ANGLE OF ELEVATION OF THE LOW-LEVEL RADIATOR USING A ROOT-MUSIC ALGORITHM


V.B. Razskazovskiy, Yu.F. Logvinov, & Yu.A. Pedenko
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine
Address all correspondence to V.B. Razskazovskiy E-mail: vadimr@ire.kharkov.ua

Abstract
The influence produced by the multipath propagation of radio microwaves over the sea on accuracy of determination of the elevation angle of a radiation source using the spectral estimation root-MUSIC algorithm has been determined. A received signal was modeled using a recently developed method for the calculation of field over the rough surface at strong shading; this method can be applied even for zero sliding angles. Measurement errors of the elevation angle obtained using the root-MUSIC method, were compared with those obtained using the monopulse and off-axis methods for the angle measurement. The advantages of the root-MUSIC method used for the measurement of elevation angles equal to tenth fractions of the beam width of a direction-finding antenna have been described.
KEY WORDS: radio microwaves, multipath propagation, elevation angle measurement, spectral estimation, MUSIC

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pages 387-401

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