Experimental study on sensitivity time control for chirp transmission

研究成果: Article査読

抄録

STC processing for chirp transmission was achieved by installing an additional filter and changing the frequency function of the chirp signal. There is a restriction on the frequency response of the LPF, which can be realized with a small number of inductors and capacitors, so the frequency function f ðtÞ is determined in accordance with the response of the predesigned LPF. As a result, the frequency function becomes a nonlinear function of t. The pulse compression technique based on a quadrature detector [4] cannot be applied to a nonlinear chirp signal, so the cross-correlation must be used for the pulse compression. The calculation cost of the cross-correlation is higher than that of the technique using the quadrature detector, but a state-ofthe-art signal processing device will relieve this problem.

本文言語English
ページ(範囲)906-908
ページ数3
ジャーナルAcoustical Science and Technology
41
6
DOI
出版ステータスPublished - 2020 11 1

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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