False detection method of satellite navigation signal and satellite navigation positioning receiver

A technology for satellite navigation signals and detection methods, applied in the field of satellite navigation, can solve the problems of flexibility, practicability, accuracy, effectiveness, and lack of advantages in technical cost, and achieve enhanced anti-spoofing capability, low cost, and scalability. strong effect
CN103116172BActive Publication Date: 2014-09-17JIANGSU COMPASS NAVIGATION & COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU COMPASS NAVIGATION & COMM TECH CO LTD
Publication Date
2014-09-17

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Abstract

The invention discloses a false detection method of a satellite navigation signal. Based on an initial position of a receiver, the method calculates a general location parameter, relative to the receiver, of a satellite, wherein the general location parameter is corresponding to the received satellite navigation signal, if the general location parameter is not within an observation vision field of the receiver, the general location parameter is judged to be a false signal, and the method further carries out false detection through calculating error distance of a spatial position of the satellite. The invention further discloses a satellite navigation positioning receiver. Through the above way, the method detects the false navigation signal through analyzing navigation message contents, strengthens anti-spoofing ability of the receiver, and further has the advantages of being low in implementation cost, strong in expansibility, capable of being firmly combined with the application mode of the receiver and the like.
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Description

technical field

[0001] The invention relates to the field of satellite navigation, in particular to a false detection method of satellite navigation signals and a satellite navigation positioning receiver. Background technique

[0002] With the widespread application of GPS and "Beidou" satellite navigation and positioning and timing services in our country, industries that have an important impact on the national economy, such as communications, electric power, transportation, etc., not only have a greater impact on the accuracy of satellite navigation, positioning and timing services The requirements are high, and the dependence on it is also greatly enhanced. Basic services and technical support are provided mainly or entirely through satellite navigation, positioning and timing services. Therefore, higher requirements are put forward for the security of satellite navigation, positioning and timing services.

[0003] Disguised jamming of satellite navigation receivers by ...

Claims

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