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Proceedings Paper

A hardware architecture for time reversal of short impulses based on frequency domain approach
Author(s): Shaoshu Sha; Varun K. Shenoy; Sungyong Jung; Mingyu Lu; Kyoungwon Min; Sungchul Lee
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Paper Abstract

In this paper, a compact and low-cost electronic circuit system is designed to time reverse short impulses in microwave regime. The proposed system consists of three major parts: (i) Fourier transform, to obtain discrete spectra of input impulses; (ii) Digital signal processing, to digitize spectral samples resulted from the first part and process them; and finally (iii) Inverse Fourier transform, to synthesize time-reversed impulses using discrete continuous wave elements. This architecture is composed of commercially available semi-conductor components, including oscillators, multipliers/mixers, band-pass-filters, amplifiers, and switches. Thus, it can embody a system-on-chip implementation of real-time time-reversal. Its performance is demonstrated by Advanced Design System simulations, with time-reversal of impulses with around 1.4 ns temporal width and [22, 29] GHz spectral coverage in noisy environments as examples.

Paper Details

Date Published: 29 April 2009
PDF: 9 pages
Proc. SPIE 7308, Radar Sensor Technology XIII, 73080T (29 April 2009); doi: 10.1117/12.818229
Show Author Affiliations
Shaoshu Sha, The Univ. of Texas at Arlington (United States)
Varun K. Shenoy, The Univ. of Texas at Arlington (United States)
Sungyong Jung, The Univ. of Texas at Arlington (United States)
Mingyu Lu, The Univ. of Texas at Arlington (United States)
Kyoungwon Min, Korea Electronics Technology Institute (Korea, Republic of)
Sungchul Lee, Korea Electronics Technology Institute (Korea, Republic of)

Published in SPIE Proceedings Vol. 7308:
Radar Sensor Technology XIII
Kenneth I. Ranney; Armin W. Doerry, Editor(s)

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