基于STM32的全相位FFT相位差测量系统

The All-Phase FFT Phase Difference Measurement System Based on STM32

针对军用和民用工程领域信号相位差测量的需要,基于全相位测量理论,使用ARM公司的高性能32Bit CortexM32内核处理器STM32F103,设计并制作了一个低成本,结构简单,处理速度快而有效的相位差测量系统,通过采样了127个点,处理后做64个点的FFT,实现了信号相位差的测量。测试结果表明有效分辨精度为1度。

For the need of signal phase difference measurement in military and civil engineering fields,based on All-phase measurement theory（a kind of FFT）.and the ARM company＇s high-performance processor,32Bit CortexM32 core STM32F103,we designed and built a low-cost,simple structure,fast processing and effective phase difference measurement system.After by sampling 127 point and treating of them,we make 64 point FFT and achieve the signal phase measurement.The tests show that the system has an effective resolution accuracy of 1 degree.