Satellite navigation time service receiver anti-spoofing method
A satellite navigation and receiver technology, applied in the field of anti-spoofing, can solve the problems of no anti-spoofing function, hidden dangers, etc., and achieve the effects of increased power consumption, simple method, and improved detection probability
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[0042] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0043] Spoofing signals can be divided into two types according to the generation method: generation type and forwarding type. No matter what spoofing interference method is used to achieve its purpose, its whereabouts will eventually be exposed in two aspects: 1. Satellite time; 2. Satellite position. The change of the satellite time is reflected in the pseudo-range, and the change of the satellite position will affect the calculation of the distance between the satellite and the ground; the timing receiver is especially for civil use, and the application scenario has its own particularity. , often appear only after the system using the timing receiver is activated. Therefore, when spoofing in...
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