VARIABLE ALTITUDE SIMULATION APPARATUS AND ELECTROMAGNETIC WAVE DELAYING METHOD

摘要

PURPOSE: A variable altitude simulation apparatus and an electric wave delay method are provided, which can test whether the electric wave altitude measuring device performs the accurate altitude measurement even in the landform having severe altitude variation. CONSTITUTION: An electric wave receiver(110) receives an electric wave from an external electric wave altitude measuring device. An RF switch(120) switches the electric signal corresponding to the received electric wave to a first terminal or a second terminal according to the predetermined simulated altitude. An RF delay unit(150) delays the electric signal delivered from the first terminal according to the simulated altitude. An optical delay unit(140) changes the electric signal delivered from the second terminal into the optical signal and delays the transformed optical signal according to the simulated altitude, finally changes the delayed optical signal into an electric signal. An electric wave transmitter(180) transmits the electric wave according to the inputted electric signal to the electric wave altitude measuring device.