Recursion-Sum Algorithm and Its Application to Measure DC Signal
Xu Hua · Shuju caiji yu chuli · 2004
To process sampling data with a recursion sum algorithm decreases the interference of harmonic waves in DC signal measurement. The theory of the recursion sum algorithm is introduced and its operation quantity is estimated. And realization formulas are provided and the program ending rule is discussed. The algorithm′s strong points are the features of fewer data, well to do conditions in which there needs no foreknowing and controlling the integrality of ratio between the sampling frequency and harmonic wave frequency, and sampleing multiples of the harmonic wave period. Simulation test and example show that the algorithm′s validity in anti jamming of harmonic waves and the feasibility in accurate measurement of the DC signal are illuminated.