Estimation of potential efficiency of interperiod processing of coherent batch radio pulses against background of clutter in pulse-Doppler radars with medium frequency of probing

Viacheslav P. Riabukha; V. V. Tsisarzh; Yevhen A. Katiushyn; Valeryii I. Zarytskyi

doi:10.3103/S0735272718120014

Authors

Viacheslav P. Riabukha Kvant Radar Systems Scientific Research Institute, Ukraine https://orcid.org/0000-0002-8607-9551
V. V. Tsisarzh Kvant Radar Systems Scientific Research Institute, Ukraine
Yevhen A. Katiushyn Kvant Radar Systems Scientific Research Institute, Ukraine https://orcid.org/0000-0001-8200-7289
Valeryii I. Zarytskyi Kharkiv National University of Radioelectronics, Ukraine https://orcid.org/0000-0001-9047-8152

DOI:

https://doi.org/10.3103/S0735272718120014

Keywords:

pulse-Doppler radar, middle frequency of probing, ambiguity in estimation of range, ambiguity in estimation of velocity, clutter, signal-to-interference plus noise ratio

Abstract

The potential efficiency of optimal interperiod processing (IPP) of coherent batch radio pulses reflected from point air targets against the background of high-power clutter is analyzed during the radar operation in the pulse-Doppler mode with middle frequency of probing at ambiguous measurements of target range and velocity. This efficiency is compared with IPP efficiency during the radar operation in the coherent pulse mode. The analysis is performed at constant and variable probing intervals when the time span of the clutter source zone is both less and greater than the probing interval in pulse-Doppler radar, i.e. in the absence and presence of superposition of clutter from different range sections. The cases of complete match of parameters of clutter superposition are analyzed at different radial velocities of equipotent clutter layers, and also the cases of superposition of nonequipotent clutter layers, the powers of which are inversely proportional to the squared distance from their sources. In addition, the wobbling of intervals of signal probing is also taken into account.

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