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2014-01-22

Pulse Compression with Gaussian Weighted Chirp Modulated Excitation for Infrared Thermal Wave Imaging

By Vanita Arora and Ravibabu Mulaveesala
Progress In Electromagnetics Research Letters, Vol. 44, 133-137, 2014
doi:10.2528/PIERL13111301

Abstract

This paper proposes a novel signal processing approach to thermal non-destructive testing by incorporating Gaussian window function onto the linear frequency modulated incident heat flux to achieve better pulse compression properties. The present work highlights a finite element analysis based modeling and simulation technique in order to test the capabilities of the proposed windowing scheme over the conventional frequency modulated thermal wave imaging method. It is shown that by using Gaussian weighted chirp thermal stimulus, high depth resolution can be achieved.

Citation


Vanita Arora and Ravibabu Mulaveesala, "Pulse Compression with Gaussian Weighted Chirp Modulated Excitation for Infrared Thermal Wave Imaging," Progress In Electromagnetics Research Letters, Vol. 44, 133-137, 2014.
doi:10.2528/PIERL13111301
http://jpier.org/PIERL/pier.php?paper=13111301

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