Satellite signal capturing system and capturing method of bilinear polarized antenna

A technology of satellite signal acquisition and polarized antenna, which is applied in the field of satellite communication, can solve the problems of receiver polarized antenna loss, etc., and achieve the effects of improving signal-to-noise ratio, fast positioning, and increasing the rate of capturing signals

Inactive Publication Date: 2016-07-20
ZHONGKE KAIPU TIANJIN SATELLITE NAVIGATION COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a satellite signal acquisition system and acquisition

Method used

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  • Satellite signal capturing system and capturing method of bilinear polarized antenna
  • Satellite signal capturing system and capturing method of bilinear polarized antenna
  • Satellite signal capturing system and capturing method of bilinear polarized antenna

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Embodiment 1

[0032] figure 1 It is a schematic structural diagram of a satellite signal acquisition system with dual linearly polarized antennas provided in the first embodiment of the present invention. see figure 1 , the satellite signal acquisition system of the dual linearly polarized antenna, comprising:

[0033] An antenna module, the antenna module is used for radiating and receiving electromagnetic wave signals, the antenna module includes a vertically polarized antenna and a horizontally polarized antenna, and a first bandpass filter and a horizontally polarized antenna corresponding to the vertically polarized antenna a corresponding second bandpass filter;

[0034] A radio frequency module, the radio frequency module is used to generate an intermediate frequency signal, the radio frequency module includes a first radio frequency module corresponding to the vertically polarized antenna and a second radio frequency module corresponding to the horizontally polarized antenna, the ...

Embodiment 2

[0046] figure 2 It is a schematic flow chart of the satellite signal acquisition method of the dual linearly polarized antenna provided in the second embodiment of the present invention; image 3 It is a schematic diagram of the process of the method for acquiring satellite signals with dual linearly polarized antennas according to the second embodiment of the present invention. The method provided in this embodiment is implemented based on the foregoing embodiments.

[0047] see figure 2 and image 3 , the satellite signal acquisition method of the dual linearly polarized antenna, comprising:

[0048] Step 201, receiving a first navigation signal sent by a satellite through a vertically polarized antenna, and receiving a second navigation signal sent by a satellite through a horizontally polarized antenna.

[0049] The navigation center station sends the navigation signal of the navigation frequency point; after the navigation satellite receives the navigation signal se...

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Abstract

The invention provides a satellite signal capturing system and a capturing method of a bilinear polarized antenna. The system comprises an antenna module, a radio frequency module and a baseband signal processing module. The antenna module is used for radiating and receiving an electromagnetic wave signal. The antenna module comprises a vertical polarization antenna, a horizontal polarization antenna, a first band-pass filter corresponding to the vertical polarization antenna and a second band-pass filter corresponding to the horizontal polarization antenna. The radio frequency module is used for generating an intermediate frequency signal. The baseband signal processing module is used for generating a digital signal according to the intermediate frequency signal and analyzing the intermediate frequency signal into a navigation signal. The antenna module is connected with the radio frequency module. The radio frequency module is connected with the baseband signal processing module. According to the invention, the signal to noise ratio of a one-way signal can be improved effectively, the signal capturing speed of a receiver is increased, and rapid positioning is realized.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and in particular relates to a satellite signal acquisition system and acquisition method of dual linearly polarized antennas. Background technique [0002] Satellite navigation and positioning system is a complete equipment system composed of navigation satellites, ground stations and positioning equipment, which is used to complete satellite navigation and positioning tasks. In order to develop an independent, highly flexible, and low-cost regional satellite navigation and positioning system, a satellite navigation and positioning system based on communication satellites (CAPS system for short) is proposed at present, which uses an in-orbit geosynchronous orbit (GEO) Satellites and inclined geosynchronous orbit (IGSO) satellites are used as navigation satellites, and ground navigation stations use high-precision atomic clocks to generate ranging codes, navigation messages and ti...

Claims

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Application Information

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IPC IPC(8): G01S19/24
CPCG01S19/24
Inventor 王晓岚马冠一万庆涛范江涛李婧华张杰
Owner ZHONGKE KAIPU TIANJIN SATELLITE NAVIGATION COMM TECH CO LTD
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