Navigation method, terminal, information processing center and navigation receiver based on frequency modulation data broadcast

A navigation receiver and data broadcasting technology, which is applied in the field of satellite navigation, can solve problems such as cost increase, calculation performance decrease, and receiver hardware and software requirements, and achieve the effect of improving use efficiency and improving information reliability and accuracy

Active Publication Date: 2017-07-21
TSINGHUA UNIV
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Problems solved by technology

The above methods have high requirements for the software and hardware of the user receiver itse...

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  • Navigation method, terminal, information processing center and navigation receiver based on frequency modulation data broadcast
  • Navigation method, terminal, information processing center and navigation receiver based on frequency modulation data broadcast
  • Navigation method, terminal, information processing center and navigation receiver based on frequency modulation data broadcast

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Embodiment Construction

[0148] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0149] figure 1 It is a schematic diagram of the basic composition and structure of the navigation method and system based on FM data broadcasting of the present invention. Such as figure 1 As shown, the navigation anti-spoofing system according to the present invention includes four parts: FM data broadcast transmitter, anti-spoofing information processing center, user navigation receiver, and anti-spoofing terminals distributed in various places, wherein the transmission of information between the various parts, This is done via a data FM radio signal.

[0150] The FM data broadcast refers to ...

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Abstract

The invention relates to a navigation method, terminal, information processing center and navigation receiver based on frequency modulation data broadcast. The method includes: receiving and demodulating received to-be-identified information; obtaining real satellite ephemeris and/or cheating interference source information according to the to-be-identified information; sending the real satellite ephemeris and/or the cheating interference source information to an anti-cheating information processing center by employing data frequency modulation broadcast signals. The real satellite ephemeris and the cheating interference source information are sent by employing the mode of the data frequency modulation signals, the advantage of low cost can be maintained based on the wide service coverage, the reliability of the navigation system is improved, the sending process of navigation information does not need a mobile communication network, and a lot of network connection resources are saved; besides, the frequency modulation data broadcast is employed as the distribution means so that the data propagation speed is fast, and the timeliness of information transmission is guaranteed.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to a navigation method based on FM data broadcasting, a terminal, an information processing center and a navigation receiver. Background technique [0002] Since the 1970s, since the US GPS (Global Positioning System) research and development was completed, with the gradual establishment and development of the EU Galileo system and my country's Beidou navigation and positioning system, satellite navigation and positioning technology has become an important part of daily life and travel. , An indispensable technology in information exchange. However, along with the development of satellite navigation and positioning technology, navigation deception technology has also emerged and gradually grown. From a perspective, in order to prevent illegal deception and interference sources from deceiving and disrupting the normal military and civilian navigation applications in our ...

Claims

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Application Information

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IPC IPC(8): G01S19/21G01S19/27
CPCG01S19/215G01S19/27
Inventor 陈曦王梦璐郑成功匡麟玲葛宁王有政
Owner TSINGHUA UNIV
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