基于声表面波啁啾滤波器的高分辨率光谱仪系统

1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118) Pub Date : 1997-10-05 DOI:10.1109/ULTSYM.1997.662986

Yuxing Zhang, J. Gong, Xianwen Zhou, Yulan Wei, J. Cheeke

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引用次数: 6

摘要

本文报道了两种基于声表面波啁啾- z变换的高分辨率光谱仪系统。为了实现15 kHz(用于未加权压缩机)和20 kHz(用于加权压缩机)的高频分辨率，将两个分别具有68 /spl mu/s色散持续时间的SAW RAC级联作为扩展器，以提供长时间的啁啾信号，并使用另一个具有68 /spl mu/s色散的RAC作为压缩器。两个系统以独立模块的形式开发，可作为通用光谱仪子系统使用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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High-resolution spectrometer systems based on SAW chirp filters

In this paper, two high-resolution spectrometer systems based on SAW Chirp-Z-Transform are reported. To achieve high frequency resolutions of 15 kHz (for unweighted compressor) and 20 kHz (for weighted compressor), two SAW RAC, with 68 /spl mu/s dispersion duration each, are cascaded as an expander to offer a long-duration chirp signal and another RAC also with 68 /spl mu/s dispersion is used as the compressor. Both systems are developed in the form of independent modules, and can be used as general-purpose spectrometer subsystems.

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来源期刊

1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118)

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