signal bridge

Analog-to-digital/ digital-to-analog converters is the bridge of the analog signal in the real-life world to digital signal, is a part of important component in analog chip.

模数/数模转换器是现实世界中模拟信号与数字信号沟通的桥梁，是模拟芯片中非常重要的单元。

Second, under the bridge to monitor signal and the characteristics of wavelet transform features, wavelet transform modulus maxima de-noising and wavelet threshold de-noising the signal, and compares three different threshold de-noising results.

其次根据桥梁监测信号的特点结合小波变换的特性，采用小波变换模极大去噪和小波阀值对信号进行去噪处理，并比较了三种不同阀值去噪方法的结果。

The approach is designed a group of temperature controlled switch circuit which control whether the parallel resistance is activated or not. Temperature signal is come from bridge voltage signal which is power supply by constant current source.

技术途径是设计一组温控开关电路来控制并联电阻器是否接入，温度信号来源于恒流源供电下的传感器桥压信号。

GPS deformation monitoring is given the time-related data series, usually containing both the real bridge deformation signals and the signal error namely the noise.

GPS监测获得的是与时间有关的数据序列，通常既包含桥梁真实的变形信号，也含有信号误差即噪声。

Aiming at the characteristic of bridge dynamic deflection signal, and the requirement for the frequency characteristic of measuring transducer, after reviewing several measuring methods, the authors put forward a convenient and effective method for measurement of bridge dynamic deflection with seismic low frequency vibration transducer.

针对桥梁动挠度信号的特点及其对测试传感器频率特性的要求，分析动挠度的几种测试方法，从而提出采用地震式低频振动传感器测量桥梁动挠度。