Complex plane split spectrum processing: simulations of zero degree long waves

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Abstract:

Complex plane split spectrum processing (CSSP) has been proposed as a broadband signal processing technique for improving ultrasonic, radar and sonar capabilities. Before CSSP can be used in industrial, medical or military applications, it is necessary to validate the technique, as well as rigorously determine and quantify the improvements this signal-processing algorithm achieves, by comparing the pre-and post-processed waveforms. A number of papers have demonstrated the benefits of CSSP and attempted to validate CSSP. However, it is believed that no paper has been published discussing a mathematical or theoretical proof for this technique.

This paper discusses simulations of CSSP, with the aim of demonstrating the capabilities of CSSP mathematically. Case studies using CSSP have claimed a number of capabilities, including reduced near-field, improved angular resolution, improved depth resolution and improved signal-to-noise ratios. Results of simulations discussed in this paper demonstrate that these claims are indeed valid for a through transmission configuration on a zero degree long-wave probe.

Document Type: Research Article

DOI: http://dx.doi.org/10.1784/insi.47.1.20.56926

Affiliations: School of Electrical and Information Engineering at the University of the Witwatersrand

Publication date: January 1, 2005

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