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Multifrequency and multi-mode RTK positioning system

A positioning system, radio frequency module technology, applied in the field of satellite navigation, can solve the problem of high cost

Active Publication Date: 2018-05-04
杭州中科微电子有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The demand for high-precision positioning is very extensive, but due to the high cost of high-precision RTK baseband chip solutions or FPGA chip solutions, it has become one of the main obstacles to the popularization of applications

Method used

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  • Multifrequency and multi-mode RTK positioning system
  • Multifrequency and multi-mode RTK positioning system
  • Multifrequency and multi-mode RTK positioning system

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Embodiment Construction

[0028] The multi-frequency and multi-mode RTK positioning system of the present invention will be described in detail below in conjunction with the specific chip configuration and combination shown in the accompanying drawings.

[0029] figure 1 It is a structural schematic diagram of the system of the present invention. The architecture includes a broadband antenna system 1, a pre-stage multi-mode multi-frequency radio frequency chip or a corresponding circuit 2, a plurality of multi-mode multi-frequency navigation baseband chips or a corresponding circuit 3; a plurality of multi-mode multi-frequency navigation baseband chips or a corresponding circuit 3 The measurement synchronization link 4 and the positioning calculation communication link 5 are interconnected together. Through the multi-mode multi-frequency navigation baseband chip or the software configuration of the corresponding circuit 3, different measurement configurations, positioning calculation configurations, an...

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Abstract

The invention discloses a multifrequency and multi-mode RTK (Real-time Kinematic) positioning system, and relates to the field of satellite positioning systems. The multifrequency and multi-mode RTK positioning system includes a wideband antenna system, a pre-stage multi-mode and multifrequency navigation radio frequency chip or a corresponding circuit, and multiple parallel processing multi-modeand multifrequency navigation base-band chip or corresponding circuits. The homogeneously parallel processing multi-mode and multifrequency navigation base-band chip or corresponding circuits have satellite navigation positioning signal measuring synchronization functions and positioning calculation communication functions, so measured values of the chips or the circuits can be combined with resolving position information, differential information can be utilized, and then high-precision real-time dynamic differential positioning can be realized. The multiple homogeneously parallel processingnavigation positioning chips are utilized by the multifrequency and multi-mode RTK positioning system to form a new realization scheme, thereby satisfying synchronous large-scale measuring processingconditions required by a real-time positioning technology. Therefore, the scheme replaces a conventional expensive single-chip scheme and provides conditions for application and popularization.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a system for realizing multi-frequency high-precision real-time dynamic differential positioning technology by using signals of a satellite navigation and positioning system. Background technique [0002] The satellite navigation and positioning system can realize positioning at any place and at any time without occlusion. Satellite navigation and positioning systems include China's Beidou second-generation satellite navigation and positioning system, the United States' GPS global satellite navigation and positioning system, Russia's GLONASS satellite navigation and positioning system, the European Union's Galileo satellite navigation and positioning system, and other regional satellite navigation systems GPS. Among the four global navigation systems, each system has multiple frequency band signals for simultaneous reception. The most commonly used concentrated single frequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/43G01S19/41
CPCG01S19/41G01S19/43
Inventor 何文涛李晓江殷明甘业兵
Owner 杭州中科微电子有限公司
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