摘要
基于传统的多通道采样技术,以二通道为例,对二通道采样和信号重构算法进行了分析,对传统理论算法进行了改进和提高,通过信号重构算法,实现了宽带信号的高速高精度采样,计算机仿真结果表明,改进后的二通道采样及重构方法可有效地减小频谱失真,实现信号的高精度采样和实时重构。同时,本文给出了基于美国德州仪器公司(TI公司)最新的高速DSP芯片DM8168的硬件系统,从硬件上实现了本文所提出的二通道重构算法。
In this paper,based on the traditional multi channel sampling technique and taking the two channels as an example,the two channel sampling and signal reconstruction algorithm are analyzed and the traditional theory and algorithm are improved.Through the signal reconstruction algorithm,it realizes high speed and high precision broadband signal sampling.The computer simulation results show that the improved two channel sampling and reconstruction method can effectively reduce the spectral distortion to realize high precision signal sampling and signal real-time reconstruction.At the same time,this paper provides the hardware system based on the latest high speed DSP chip DM8168 developed by American TI company to realize two channel reconstruction algorithm proposed in this paper by hardware.
出处
《控制工程》
CSCD
北大核心
2014年第S1期51-53,共3页
Control Engineering of China
关键词
高速高精度采样
模拟滤波器
数字滤波器
high speed and high precision sampling
analog filter
the digital filter
