摘要
在进行数码设备的调试、维修时,必然会遇到多种噪声。为了揭示噪声的根源,采用实验的手法,去观察、分析数字信号处理系统中模/数转换器关键点电压及信号的波形,根据模/数转换器的特点与实际需要,采用声表面波滤波器、优化电源结构、改变系统接地等方法来过滤噪声。实践中,使用这些措施去抑制数字信号处理系统的噪声,对提高模/数转换器转换精度、转换精度,都达到了事半功倍的效果。
It is inevitable that experts will＇ nt meet various noise to maintenance and debug in the digital equipment.In order to reveal the source of noise.the noise waveform and key point voltage are observed and analyzed in analog-to-digital con- verter of digital signal processing systemcireuit by experimental methods, according to digital converter characteristics and actual needs, methods are tested out base on the surface acoustic wave filter / the quality of power supply/the system grounding method .the noise is prevented in the analog/digital converter by methods.In practice,it has reached a multiplier effort because methods has improved the accuracy and accuracy of analog- to- digital converter in the digital signal processing systemcircuit of equipment.
出处
《电声技术》
2016年第3期22-24,共3页
Audio Engineering
关键词
噪声
模/数转换
声表面波滤波器
转换精度
转换速度
noise
analog-to-digital converter
surface acoustic wave filter
convert accuracy
convert rate
