一种基于迭代计算逻辑的正弦信号分析算法

A sinusoidal signal analysis algorithm based on iterative calculation logic

本文针对电力监测中对于正弦信号的分析计算问题,提出了一种基于FPGA平台、以迭代计算逻辑为运算核心的正弦信号分析算法。本文介绍了信号分析的数学原理,给出了计算步骤。为了解决运算中的除法、开平方根、求正弦、求反正弦这些较为复杂的数学计算问题,在FPGA中设计了基于数字逻辑的迭代计算逻辑。本算法集成度高,对硬件资源消耗较少,在功能开发方面具有很强的灵活性。基于此算法,本文给出了具有触发录波、信号分析、电能质量运算的多通道正弦信号数据采集及分析装置的设计方案,这对于电力监测装置的研发具有一定的参考价值。

Aiming at the analytical calculation issue of sinusoidal signal in power monitoring,in this paper,a sinusoidal signal analysis algorithm for which iterative calculation logic is taken as the core of calculation is proposed.Firstly,the principle of mathematics of signal analysis and the calculation procedure are introduced.Then,in order to solve the complex mathematical calculation problems such as division,square root,sine and arcsine in operation,an iterative calculation logic based on digital logic is designed in FPGA.This algorithm is highly integrated,consumes less hardware resources,and has strong flexibility in function development.Finally,based on this algorithm,a design scheme of multi-channel sinusoidal signal data acquisition and analytical instrument with trigger recording,signal analysis and power quality calculation is introduced,which is of practical significance for the research and development of the power monitoring device of the same kind.