GROUND TEST EQUIPMENT FOR SATELLITE GPS RECEIVER

摘要

PURPOSE: A ground test equipment for a satellite GPS receiver is provided to test a GPS receiver easily at a satellite test facility located on the ground. CONSTITUTION: A GPS satellite signal from an exterior antenna is inputted to an input port(1). A channel simulator signal to simulate the GPS satellite signal is inputted to an input port(2). A switch element(20) selects one out of the signals inputted to the input ports(1,2) alternatively. A first divider(30) divides the signal selected at the switch element(20) into 4 outputs. The 3 outputs are connected to a satellite receiver through each output port(3-5). An amplifier(50) amplifies one signal outputted from the first divider(30). A second divider(70) divides the signal amplified in the amplifier(50) into 4 outputs. The 4 outputs are transferred to the satellite receiver through each output port(6-9) respectively.