Methods of enhancing the compression of short LFM signals

Authors

  • W. A. Pogribny University of Technology and Life Sciences; University of Economy, Poland
  • T. Leshchinski University of Technology and Life Sciences, Poland
  • I. V. Rozhankovskii University of Technology and Life Sciences, Poland

DOI:

https://doi.org/10.3103/S0735272708030059

Abstract

New digital methods have been presented that provide for enhancing the compression of short LFM chirps under conditions of the matched filtration in the time domain. It was shown that by selecting parameters of a short LFM signal and the pulse response characteristic of the matched filter for the window used and utilizing nonlinear convolution operations, the ratio of the main lobe of output signal to the side lobes can be significantly enhanced with the simultaneous reduction of the main lobe width to one sample.

References

J. Tsui, Digital Techniques for Wideband Receivers (Artech House, Boston–London, 1995).

S. G. Schock and L. R. LeBlanc, “Chirp Sonar: New Technology for Subbottom Profiling,” Sea Technol. 31, 35 (1990).

B. L. Lewis, Aspects of Radar Signal Processing (Artech House, Boston–London, 1986).

Tortoli, M. Baldanzi, F. Guidi, and C. Atzeni, “Digital Design Improves Radar Pulse Compression,” Microwaves & RF, No. 5, 135 (1997).

V. A. Pogribnoi, I. V. Rozhankovskii, and V. I. Lozinskii, “Matched Filtration in Combined Formats for Digital Location,” Izv. Vyssh. Uchebn. Zaved., Radioelektron. 46(12), 3 (2003).

V. A. Pogribnoi, I. V. Rozhankovskii, and T. Leshchinski, “Improvement of Resolving Capacity of Correlation Methods for Detecting Short Noise-Containing Signals,” Izv. Vyssh. Uchebn. Zaved., Radioelektron. 49(3), 36 (2006).

W. Pogribny, I. Rozhankivsky, A. Milewski, and V. Lozynsky, “Studying the Exactitude of Digital Matching Filtration of Widepass Location Signals,” Hydroacoustics 4, 209 (2001).

S. W. Smith, Digital Signal Processing: A Practical Guide for Engineers and Scientists (Elsevier Inc, Burlington, 2003).

Published

2008-03-05

Issue

Section

Research Articles