基于labview的多重自相关算法测量低信噪比条件下两路正弦波的相位差-Based on the phase difference between two sine wave labview multi the autocorrelation algorithm measuring low signal-to-noise ratio conditions

基于谱分析法的相位差计，仪器内集成周期测量仪（基本原理是计数法）-Based on spectral analysis of the phase difference meter, instrument integration cycle measuring instrument (the basic principle is counting method)