Anti-deception-interference satellite navigation positioning method and chip
The invention provides an anti-deception-interference satellite navigation positioning method and a chip. The method comprises the steps that a satellite radio frequency receiving module receives a positioning satellite radio frequency signal, and detects whether the power intensity of the received...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an anti-deception-interference satellite navigation positioning method and a chip. The method comprises the steps that a satellite radio frequency receiving module receives a positioning satellite radio frequency signal, and detects whether the power intensity of the received signal exceeds a preset threshold value or not; a satellite radio frequency signal identity recognition module preprocesses the received signals, intercepts recognizable positioning satellite signals and recognizes and distinguishes real signals and false signals; when the received signal is identified to be a real signal, the received signal is settled to obtain real position time information; and when the received signal is identified as the false signal, alarm information is sent out. According to the method, the authenticity of the signal is identified from a signal level, authenticity of upper-layer position calculation is ensured, and purposes of timely and accurately detecting and effectively resisting spoof |
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