1PPS 1PPS MULTI-CHANNEL 1PPS SIMULATOR AND METHOD FOR SIMULATING 1PPS USING THE SAME

摘要

A GPS module that receives a GPS signal from a GPS (Global Positioning System) satellite through an antenna, generates a 1PPS (Pulse Per Second) signal based on the GPS signal, and transmits the 1PPS signal to a microprocessor; A microprocessor that generates a PWM (Pulse Width Modulation, Pulse Width Modulation) signal based on the 1PPS signal received from a microprocessor and transmits the PWM signal to a signal amplifier; A signal amplifier for amplifying a voltage of a set magnitude and transmitting the amplified PWM signal to a plurality of output units, a plurality of output units for outputting the amplified PWM signal received from the signal amplifier; There is provided a multi-channel 1PPS simulator for testing avionics including a GPS module and a power supply for supplying power to the microprocessor. It is possible to simulate a 1PPS signal even in a situation where GPS signal reception is impossible, and a signal that can be modulated using PWM can be output to multiple channels of 2 or more. Furthermore, in developing test equipment for avionics equipment, the development period can be shortened and the performance of the test equipment can be improved.