Design of a high-resolution frequency meter combined with the DDS
Qinglan Zhang · Journal of Xidian University · 2012
This paper describes the method for designing a high-resolution frequency meter based on the DDS(Direct Digital Synthesizer) using a simple circuit.In this method,DDS is used to track the value of the measured frequency and synthesizes automatically appropriate frequency standard signals.This method is applicable to measuring signals within a wide range of frequency.Prototype measured data show that the high-resolution frequency meter can reach the magnitude of 10-12/s.