Novel IRIG (Inter Range Instrumentation Group)-B alternating current code intelligent decoding method
A decoding method and a new technology, applied in the field of telemetry, can solve the problems of high signal amplitude and signal-to-noise ratio, signal amplitude weakening, large environmental noise, etc., achieve strong adaptive demodulation and decoding capabilities, and ensure error correction capabilities , the effect of strong anti-noise ability
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[0029] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0030] like figure 1 Shown is the functional block diagram of the intelligent decoding method of the present invention, as can be seen from the figure, the intelligent decoding method of the present invention is realized by the following modules:
[0031] Analog low-pass filter, isolated AD sampling circuit, high-order digital filter and intelligent decoding module, in which the intelligent decoding module is composed of pattern demodulation module, phase compensation module, time decoding module and error correction module, and the final output is accurate PPS second pulse and time information such as figure 2 Shown is a schematic structural diagram of the intelligent decoding module in the intelligent decoding method of the present invention.
[0032] like figure 1 As shown, the frequency of the IRIG-B AC analog signal input to the system ...
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