A New-type Method Of Frequency Measurement And Lts Application

The method of frequency measurement this paper mentioned is supported by theresearch capital of national dei'ence. This method is the best conclusion of my work intime and frequency measurement with direction of my mentor. It is a new-type methodwhich aim at the frequency measurement circuit of the missile's acceleration .It can useless hardware resource to complete the high accuracy frequency measurement. so itreduces the research cost greatly.Firstly , we can acquire the signal to latch measured signal counter and the countclock of standard signal by a simple circuit, It is the foundation of follow work. thecircuit is of refinement and concision.Secondly, the high accuracy and fixed strobe frequency measurement method, basedon the Multiple Period Synchronization method, is of follow characteristic, high speed,continuous measurement and high accuracy. According to the method principle, oneway system and three ways frequency measurement system have already completed, thesystem runs stable and is of high distinguish. The three frequency measurement systemhas already pass the army's check and accept.Finally, I use the EDA software MAXPLUS 2 of ALTERA corporation to completethe system, it can make the PCB smaller, predigest the circuit and shorten thedevelopment period.