Verification procedure for radar quadrature processing unit with stepwise frequency modulation of the probing signal

Yu. B. Gimpilevich; Dmytro A. Savochkin

doi:10.3103/S0735272713060046

Authors

Yu. B. Gimpilevich Sevastopol National Technical University, Ukraine
Dmytro A. Savochkin Sevastopol National Technical University, Ukraine

DOI:

https://doi.org/10.3103/S0735272713060046

Keywords:

verification procedure, radar, quadrature processing, stepwise frequency modulation, probing signal, subsurface radiolocation, obstructed radiolocation, reflectogram

Abstract

The paper presents a verification procedure developed for the quadrature processing unit of radar with stepwise frequency modulation of the probing signal. The computer simulation and experiments on verifying the developed and manufactured quadrature processing unit were performed for the cases of placing a single stationary point object at distances 9 and 24 meters. The effect of inaccuracy in setting the phase shift between the reference oscillations of quadrature mixer on the waveform of spatial reflectogram was investigated by using the developed verification procedure; and it was shown that phase shift errors could lead to the generation of false responses.

References

MAHAFZA, B.R. Radar Systems Analysis and Design Using MatLab. Boca Raton: CRC, 2000.

WEHNER, D.R. High Resolution Radar, 2nd ed. Norwood: Artech House, 1994.

SAVOCHKIN, D.A. AND SMAILOV, Yu.Ya. Quadrature processing unit for radar signals with stepwise frequency modulation. Proc. of Int. Conf. “Modern Problems of Radio Engineering and Telecommunications,” RT-2011, 11–15 April 2011, Sevastopol, Ukraine. Sevastopol, 2011, p.78.

GONOROVSKII, I.S. Radio Circuits and Signals. Moscow: Sov. Radio, 1977 [in Russian].

ADL5380 Datasheet, Analog Devices, http://www.analog.com/static/imported–files/data_sheets/ADL5380.pdf ">http://www.analog.com/static/imported-files/data_sheets/ADL5380.pdf.