**Abstract.** The problem
of improving the accuracy and speed of measurement of angular coordinates in
monopulse radar system overview with a total amplitude-difference meter is
worked out. Based on these studies, as well as the optimization of a computer
model taking into account the possibilities of modern methods of digital signal
processing, a method of signal processing is elaborated, the last one provides
reception of cubic direction-finding performance and analytical solution of the
direction-finding equation with an accuracy of 1% of the width of the partial
directional pattern in the working area, increased to monopulse width groups of
rays. The algorithm works on the basis of the radar system antenna array, which
has increased the speed and accuracy of measurement of angular coordinates. The
block diagram of radar system is examined and its operating principle is described.

**Key words: **monopulse
radar system, direction-finding feature, antenna array, radiation pattern.

References

*1.
*Leonov A.I., Fomichev K.I*. Monoimpulsnaya radiolokatsiya*
[Monopulse radar]. Moscow, Radio and Communications Publ. 1984. 312 p. (In
Russian)

*2.
*Verba V.S.* *Development of advanced airborne radar:
potentials and limitations. *Informatsionno-izmeritelnye i upravlyayushchiye
sistemy - Information-measuring and control systems, *2016, ¹1, v. 14, p. 6
– 20. (In Russian)

*3.
*Rhodes D.R. Introduction to monopulse. Mc Graw – Hill book company,
Inc. New York, Toronto, London. 1959. 160 p.

*4.
*Dzhioyev A.L., Yakovlenko V.V. Improvement of the characteristics of
the overview summed-difference direction finder with phased antenna array based
on the optimization of direction-finding characteristics. *Obshchiye voprosy radioelektroniki – General questions of radio
electronics.* Rostov-on-Don. FRPC "RNIIRS" Publ. 2014. Iss. 1. P.
105 – 117. (In Russian)

*5.
*Dzhioyev A.L., Yakovlenko V.V. Elimination of the methodical
error in measuring the angular coordinates of the target in the overview
amplitude summed-difference digital direction finder based on a phased antenna
array. *Obshchiye voprosy radioelektroniki – General questions of radio
electronics.* Rostov-on-Don. FRPC "RNIIRS" Publ. 2015. Iss. 1. P.
47 – 57. (In Russian)

*6.
*Patent 2583849 RU, G01S 3/14, H01Q 25/02. A method for digital
signal processing with an overview monopulse amplitude summed-difference
direction finding using an antenna array (variants) and an overview monopulse
amplitude summed-difference direction finder using an antenna array and digital
signal processing. Dzhioyev A.L., Omelchuk
I.S., Fominchenko G.L., Fominchenko G.G., Yakovlenko V.V.* *Filed
13.04.2015, publ. 10.05.2016. (In Russian)

*7.
*Manuilov B.D., Bashly P.N. Optimization of integral parameters of
a monopulse antenna array with a joint beam forming. *Antenny – Antennas*.
2001. ¹ 4 (50), p. 61-67. (In Russian)

*8.
*Korn G.A., Korn T.M. Mathematical handbook
for scientists and engineers. Mc Graw – Hill book
company, Inc. New York, Toronto, London. 1961. 832 p.

**
For citation:**

A. L. Dzhioyev,
I. S. Omelchuk, G. L. Fominchenko,
V. V. Yakovlenko.
A signal processing
method, algorithm of the operation
and structure of the measurer of the
angular coordinates with cubic direction-finding* *
characteristic of digital monopulse radar.
*Zhurnal Radioelektroniki - Journal of Radio Electronics*,
2017, No.
7. Available at http://jre.cplire.ru/jre/jul17/10/text.pdf.
(In Russian)