Study On Digital Filter Algorithms Of Data Acquisition System

Data acquisition and digital filtering technology is an important branch of digital signal processing and digital filter algorithm is of great importance to the entire system, it is good or bad directly determines the data acquisition system with speed and precision.This paper introduce the current data acquisition system and digital filtering algorithm's development and present situation, with an emphasis on data acquisition system is a variety of digital filtering algorithms and their application range and specific filtering process, and each digital filter algorithm are tested and the corresponding test results to be compared and analyzed.The innovation of this paper is the comprehensive and reference existing digital filtering arithmetic's advantages and disadvantages,and improved and puts forward the specific data acquisition system of digital filtering algorithm, makes this algorithm in this particular temperature gathering system has good effect of filtering based on data acquisition, and compared the filtering effect to the improved digital filtering algorithms with before filtered, the results shows that the improved algorithm can adapt to the complex noise environment, and played good filtering effect.Finally a detailed description of what the improved digital filtering algorithm's application, and each module of the data acquisition system.