摘要
论述了为改进１２８路模拟信号输入的计算机数据采集及监控系统所作的分析研究，着重分析了其采样器的动态特性及系统在有噪声和无噪声输入下的特点。为改善总体快速性及测量精度，提出了在优化采样器参数的基础上，改进数字滤波方法，即用卡曼滤波算法替代原来使用的移动平均算法，从而有效地改善了测量数据的精度和监控信号的显示波形质量。
he improvement of a digital data acquisition and monitoring computer system, which dealswith 128 channels of analogUe signal inputs at the same time, is studied in this Paper. m authorshave emphatically analyzed the dynamics of the system and its sampler in two case: inputs with andwithout noise. Based on the optimization of the sampler Parameters, the authors have advanced a newdigital filtering method. With the Kalman filtering algorithm instead of the old moving means method,and there by the accuracy and the response speed of the system measurement, the quality of the displaywaves of the monitored signals are improved effectively.
出处
《数据采集与处理》
CSCD
1995年第1期20-26,共7页
Journal of Data Acquisition and Processing
关键词
数据采集
监控系统
微机
digital data acquisition
dynamic analysis
digital signal process
measurement technique
