The Technology Research Of Timing System Of Unification At Shooting Range For Experimental Ammunition

Timing system of unification provides the standard time\frequency and displays all kinds of time in shooting range test,allowing all the measuring and control system to work in according with reference time.Timing system of unification of range is the target range observation system's important component,its primary mission is to establish and the transfer time datum,the gathering,the record and transmitting message.Because of the GPS global positioning system has the signal of the global character and entire day time and all-weather covers as well as it embarked time-frequency standard with high steady and high accurate atomic clock easy to realize the high accuracy and low cost time system of unification.The development of Timing system of unification is because the need of development of controls an emerging technology which the ammunition performance flight.Along with science's and technology's progress of the modern navigation, the electron,the correspondence,the electric power and so on,more and more projects and the scientific field needs the time system of unification, simultaneously need to getting higher and higher to accuracy requirement.This article elaborated the time system of unification of composition principle and the method of realization.Aim at shooting range system to establishe unified launch zero(launching absolutely time) carries on analyzes,the research and method earnestly in the comparison foundation,from project angle embarking,elaborated in detail with the GPS technology and the FPGA technology to design time unification system of unification of software and hardware.Timing system of unification mainly aims in conventional ammunition with the ammunition of control,such as the rocket projectile of revises and the guidance ammunition,using the high accuracy time and all-weather time unlimited characteristic of the GPS system,unified local high accuracy GPS receiver, designing software and hardware system to realize the function of the transmission of timing pulse,may the record precise firing time(launching absolutely time).Compared with the similar products,this system has high integration rate,low the power loss and small volume,the performance-to-price ratio is high,keep good the performance of secret,the resolution precision is high moreover more reliable.The time system of unification provides the standard 1PPS second pulse time signal after adjust and the GPS system time has 200ns of the precision timing pulse function.