A robust algorithm of period calculation in asynchronous sampling
LU Guang-hua · Electrical Measurement & Instrumentation · 2004
A synchronization processing scheme for the asynchronous sampled data is introduced. Based on some unique features of the autocorrelation function of asynchronous sampled period signal with harmonic and noise, a new period calculation algorithm is then presented from the autocorrelation in combination with across-zero detection technology , which is the key for the synchronization. Simulation results and theoretical analysis show that the new period calculation method in this paper is robust?computationally simple and its accuracy of estimation is satisfactory.