Design of general automatic test system for airborne radio equipment based on hybrid Bus architecture

Our military airborne radio equipments have many types and its original test equipment have many disadvantages such as more number, working with the cooperation of general purpose instruments, low test efficiency and inconvenient transfer. By means of analyzing test requirements of navigation equipment the general purpose automatic test system based on PXI and GPIB bus instrument is built to provide operating environment; Software system development platform faced signal is adopted and the relevant test programs are written. Malfunction Diagnosis program based on decision supporting system is compiled to realize automation of performance test and malfunction diagnosis; Multifunction coder based on CPLD and special modulator employing high quality operational amplifier and microwave PIN array are developed to solve the difficulty in adapter design.