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A system and method of generating and broadcasting ultra wide band navigation signals

A navigation signal, ultra-broadband technology, applied in the field of satellite navigation, can solve the problems of low spectrum utilization, lack of flexibility, etc., to achieve high flexibility, improve anti-interference ability, and improve the effect of spectrum utilization.

Pending Publication Date: 2020-11-17
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
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Problems solved by technology

At the same time, only a small part of frequency resources are used, the spectrum utilization rate is not high, and there is no flexibility

Method used

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  • A system and method of generating and broadcasting ultra wide band navigation signals
  • A system and method of generating and broadcasting ultra wide band navigation signals
  • A system and method of generating and broadcasting ultra wide band navigation signals

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Embodiment Construction

[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051] The present invention is a system and method for generating and broadcasting ultra-wideband navigation signals. The system includes: a navigation satellite constellation, a ground station, and a user terminal; Quadruple and above coverage; each navigation satellite in the navigation satellite constellation can establish a connection with the ground station, receive the navigation message or instructions on the ground station, and the ultra-wideband navigation signal is generated and broadcast on the navigation satellite. Under the control of the spectrum monitoring function, the navigation messages or instructions marked on the reference and ground stations can flexibly and agilely generate and broadcast ultra-wideband navigation signals; in the case of ground instructions or autonomous interference monitoring, signal agility is...

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Abstract

The invention discloses a system and a method for generating and broadcasting ultra-wideband navigation signals. The system comprises a navigation satellite constellation, a ground station and a userterminal, the navigation satellite constellation is composed of a plurality of satellites with a plurality of orbital planes, and quadruple or more coverage of the navigation satellite constellation on the ground is achieved. Each navigation satellite in the navigation satellite constellation can establish connection with the ground station and receive navigation messages or instructions injectedto the ground station, the navigation satellites have ultra-wideband navigation signal generation and broadcast loads, and under the control of a frequency spectrum monitoring function, according to the time frequency reference and the navigation messages or instructions injected to the ground station, an ultra-wideband navigation signal is flexibly and quickly generated and broadcasted; under thecondition of ground instructions or autonomous interference monitoring, signal agility is carried out, active interference avoidance is realized, and the anti-interference capability is further improved.

Description

technical field [0001] The invention relates to a system and method for generating and broadcasting ultra-wideband navigation signals, belonging to the technical field of satellite navigation. Background technique [0002] Global Navigation Satellite System (GNSS) is widely used and is one of the important ways for people to obtain location and time information. At present, the pattern of four major GNSS systems has been formed. The four major GNSS systems are GPS in the United States, GLONASS in Russia, Galileo in Europe and Beidou in China. Frequency allocation planning. On the one hand, in order to achieve interoperability between GNSS, the frequency spectrum overlaps to a certain extent; on the other hand, in order to avoid mutual interference and meet compatibility requirements, the frequency spectrum and power of GNSS signals are strictly limited. [0003] Specifically, the L frequency band used for GNSS downlink navigation signals is relatively concentrated in 1160-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/37G01S19/46
CPCG01S19/37G01S19/46Y02D30/70
Inventor 蒙艳松严涛王瑛边朗田野李天
Owner XIAN INSTITUE OF SPACE RADIO TECH
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