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International Journal of Antennas and Propagation
Volume 2013 (2013), Article ID 605604, 9 pages
http://dx.doi.org/10.1155/2013/605604
Research Article

Sidelobe Reduction in the Pulse-Compression Radar Using Synthesis of NLFM Laws

Department of Communications and Military Electronic Systems, Military Technical Academy, George Coşbuc Avenue 39-49, 050141 Bucharest, Romania

Received 24 October 2012; Revised 28 January 2013; Accepted 18 February 2013

Academic Editor: Stefano Selleri

Copyright © 2013 Iulian-Constantin Vizitiu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

It is well known that in the pulse-compression radar theory, the sidelobe reduction using synthesis of some proper nonlinear FM (NLFM) laws represents a major research direction. In order to assure the sidelobe suppression, the main objective of this paper is to present an adequate synthesis algorithm of NLFM signals based on stationary phase principle. The achieved experimental results confirm a significant sidelobe reduction (i.e., more than −40 dB) without necessity to apply some weighting techniques. In addition, the analysis of the synthesized NLFM laws by ambiguity function tool is also discussed.