Airborne selective calling signal generator and implementation method thereof
A signal generator and selective calling technology, applied in the direction of selection devices, electrical components, etc., can solve the problems that affect the normal flight of the aircraft, the audio management components are prone to failure, etc., and achieve improved reliability, output frequency bandwidth, and high frequency resolution. Effect
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[0027] The implementation method of the multi-channel digital airborne selective call signal generator provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] like figure 1 As shown, a virtual interface control software running on the industrial computer sends selective call codes to the hardware circuit, and the selective call signal is transmitted to the control single-chip microcomputer through the USB conversion circuit, and the single-chip microcomputer decodes and corrects the read data according to the pre-specified format. Test, get the amplitude control word and selective call code, and then transmit these information to the FPGA chip together with the control signal. The AVR single-chip controller is mainly used to control the USB module, read data from the USB conversion circuit by means of interruption, and send it to the signal generator based on the FPGA chip after proces...
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