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Receiver for Beidou satellite navigation and positioning system

A Beidou satellite, navigation and positioning technology, applied to the satellite radio beacon positioning system, radio wave measurement system, measurement device, etc., can solve the problems of large size of the whole machine, large power consumption, and large power consumption of electronic components, and achieve The effect of optimizing circuit structure, reducing volume and reducing power consumption

Inactive Publication Date: 2012-10-17
GUANGDONG SHENGDA ELECTRONICS
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing satellite mobile receivers fail to optimize the circuit structure, and the electronic components used consume a lot of power, resulting in a large volume and high power consumption of the whole machine.

Method used

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  • Receiver for Beidou satellite navigation and positioning system

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0013] see figure 1 , is a schematic diagram of the structure of the Beidou satellite navigation and positioning system receiver provided by the present invention.

[0014] The input terminal of the satellite navigation and positioning system receiver is connected to the Beidou satellite signal, and the Beidou satellite signal is mixed in two stages to generate an intermediate frequency output signal. The receiver includes: a low-noise amplifier unit, a temperatur...

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Abstract

The invention discloses a receiver for a Beidou satellite navigation and positioning system, which comprises a low-power consumption low noise amplification unit, a primary mixing unit, a secondary orthogonal mixing demodulation unit and a bandpass filter unit, which are sequentially connected. Intermediate frequency output signals are generated after carrying out two-stage mixing on Beidou satellite signals; a printed circuit board of the receiver adopts multilayer wiring and shields easily-interfered signals at an intermediate layer; and the receiver adopts 3.3V power for power supply and has electronic elements adopting small packaging crystals. The embodiment of the invention adopts an optimized circuit structure and the optimized electronic elements, which can reduce the size of the circuit and power consumption.

Description

technical field [0001] The invention relates to the field of electronic communication, in particular to a Beidou satellite navigation and positioning system receiver. Background technique [0002] The Beidou satellite navigation and positioning system is a regional active three-dimensional satellite positioning and communication system (CNSS) independently developed by China. It is the third mature satellite navigation system after the US GPS and Russia's GLONASS. The system consists of three satellites to form the Beidou satellite positioning system. The ground part is divided into the ground control center and the Beidou user receiving terminal, consisting of three parts in total. The Beidou positioning system can provide users with all-weather, 24-hour real-time positioning services, and the positioning accuracy can reach the synchronization accuracy of tens of nanoseconds (ns), which is comparable to GPS. [0003] At present, the role of the satellite mobile receiver is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/13
Inventor 陈志伟
Owner GUANGDONG SHENGDA ELECTRONICS