基于DSP交替式积分器设计  

Design of alternant integrator based on DSP

作　　者：缪晶[1] 季振山[1] 王勇[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《核聚变与等离子体物理》2011年第3期266-271,共6页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助项目(10835009);科学院知识创新工程重要方向性项目(KJCX3;SYW.N4);973项目(2009GB103000)

摘　　要：在DSP扣除斜率算法的基础上,设计了一种新型交替式积分器。该积分器利用DSP进行逻辑控制,使两个模拟积分器交替工作,减小两个积分器的积分时间,从而有效克服由于电容和温漂带来的误差,实现了对信号的长时间积分。同时采用Iqmath库函数实现定点处理器的运算来提高实时精度,很方便地实现了实时而准确的积分处理。Based on the algorithm of DSP deducting slope,we designed a new type of alternate integrator.This new integrator makes use of DSP for logic control to make two analog integrator work by turn,and this will reduce integration time of two integrator,which effectively overcome the errors caused by capacitance and temperature drift,thus the signal integration for a long time is realized.At the same time,we also use fixed-point processor Iqmath library functions to achieve real-time compute to improve the precision,it is convenient to achieve integration of real-time and accurate processing.

关 键 词：交替式积分器 漂移 补偿 

分 类 号：TP214[自动化与计算机技术—检测技术与自动化装置]