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Performance Comparison of Uniform and Nonuniform Pulse Repetition Interval for PCW and LFM Signal

Naga Venkateswara Rao P.*, Raja Rajeswari K. **, Prabhakara Rao B. ***

* Department of Electronics and Communication Engineering, Visakha Institute of Engineering and Technology, Visakhapatnam, Andhra Pradesh, India.

** Department of Electronics and Communication Engineering, Gayatri Vidya Parishad College of Engineering for Women, Visakhapatnam, Andhra Pradesh, India.

*** Department of Electronics and Communication Engineering, Jawaharlal Nehru Technological University College of Engineering, Kakinada, Andhra Pradesh, India.

Periodicity:July - December'2020
DOI : https://doi.org/10.26634/jcs.9.2.17986

Abstract

In radar, uniform side lobe pattern is useful for detection of weak targets. Important radar characteristic function, i.e., ambiguity function, a two-dimensional function of time delay χ(τ,f_d) and Doppler frequency that portrays the distortion of a returned pulse induced by the receiver matched filter due to the Doppler shift of the return radar signal from the moving target, is useful for identification of poor targets. Nonuniform PRI LFM (ascending and descending order) with length 11 as well as uniform Pulse Repetition Interval LFM with length 11 has been considered here. The ambiguity diagram, which defines the radar's precision, is used to quantify PSLR (Peak Side Lobe Ratio) and ISLR (Integrated Side Lobe Ratio). To minimise side lobes, this paper proposes a new paradigm for PCW (Pulse Continuous Wave) and LFM signals. Several applications are discussed that are specifically related to the strengths and limitations of nonuniform PRI waveforms.

Keywords

Peak Side Lobe Ratio, Integrated Side Lobe Ratio, Pulse Repetition Interval, Nonuniform PRI.

How to Cite this Article?

Rao, P. N. V., Rajeswari, K. R., and Rao, B. P. (2020). Performance Comparison of Uniform and Nonuniform Pulse Repetition Interval for PCW and LFM Signal. i-manager's Journal on Communication Engineering and Systems, 9(2), 14-20. https://doi.org/10.26634/jcs.9.2.17986

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