Cubesat UHF transmitter telemetry signal modulation and demodulation method and electronic equipment
The invention provides a cube satellite UHF transmitter telemetry signal modulation and demodulation method and electronic equipment. The modulation method is applied to a transmitter and comprises the steps that telemetry signal frames are established for telemetry signals through the transmitter,...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a cube satellite UHF transmitter telemetry signal modulation and demodulation method and electronic equipment. The modulation method is applied to a transmitter and comprises the steps that telemetry signal frames are established for telemetry signals through the transmitter, the telemetry signal frames comprise frame headers and effective data, and the frame headers adopt pseudo code sequences; processing the telemetry signal frame to complete forward error correction; modulating the processed telemetry signal frame to obtain a modulation signal; the demodulation method is applied to a receiver and comprises the steps that a modulation signal of a telemetry signal frame is received, the telemetry signal frame comprises a frame header and effective data, and the frame header adopts a pseudo code sequence; generating a local code sequence by adopting a pseudo code sequence which is the same as the frame header; performing frequency sweeping on the modulation signal; calculating a cross-c |
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