The paper introduce the theory of surface acoustic wave sensor, the digital signal treatment, the method of soft design in the passive and wireless tire pressure monitoring system in detail.
文章详细介绍了无源无线轮胎压力监测系统中的声表面波传感器工作原理、回波信号组成、数字信号处理和软件开发方法；
Based on wave propagation theory, the paper describes briefly basic principle of several acoustic propagation models, and discusses detailedly foundation of coupled normal mode.
在波动传播理论的基础上，简要介绍了几种主要声传播模型的基本原理，并着重对简正波模型进行了研究。
Based on the wavelet transformation and the theory of modal acoustic emission, the dispersion of guided wave propagated in thin plate was investigated by acoustic emission experiment.
基于小波变换和模态声发射理论，通过模态声发射试验的方法确定了管道中导波传播的频散特性。
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