Airborne selective calling signal generator and implementation method thereof

Abstract

The invention relates to an airborne selective calling signal generator and an implementation method thereof. A virtual interface control window running on an industrial personal computer is used as a control terminal for the airborne selective calling signal generator; virtual interface control software is communicated with selective calling signal source hardware through a universal serial bus (USB) conversion circuit so as to control the selective calling signal source hardware; the airborne selective calling signal generator does not need to modify the hardware but only needs to modify a singlechip and parts of programs in a field programmable gate array (FPGA) so as to realize an arbitrary waveform function; a signal calling source of the generator has a wide output frequency band and a high frequency resolution rate, and the variation in the output frequency only changes the slope of a corresponding function curve, does not have influence on the continuity of the curve and can meet the testing requirements of various system management components on an airplane; and a selective calling audio signal can be accurately and stably generated according to requirements in the automatic testing process of airborne electronic equipment.

Description

technical field [0001] The invention relates to a selective call signal generator for aircraft maintenance, in particular to an airborne selective call signal generator and its realization method. Background technique [0002] The aircraft selective call signal is used by the ground tower to inquire about the aircraft in the airspace, so as to realize the communication between the tower and the aircraft, and ensure the successful completion of the flight mission of the aircraft. Therefore, before the aircraft is released, it is necessary to ensure that the selective call function of the relevant airborne electronic equipment is normal. According to statistics, the audio management component is a key device that is prone to failure. If it cannot be repaired quickly and accurately, it will definitely affect the normal flight of the aircraft. So far, the automatic test equipment for audio management components is still in its infancy, and the testing of audio management compon...

AI Technical Summary

Problems solved by technology

According to statistics, the audio management component is a key device that is prone to failure. If it cannot be repaired quickly and accurately, it will definitely affect the normal flight of the aircraft

So far, the automatic test equipment for audio management components is still in its infancy, and the testing of audio management components (AMU) generally adopts the way of audio control panel (Audio Control Panel, ACP) assisted debugging, which is at a relatively low level.

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