Dual-mode navigator with GPS receiving mode and plough receiving mode

A receiving mode, navigator technology, applied in the field of navigation, to reduce errors, improve positioning accuracy, improve flexibility and controllability

Inactive Publication Date: 2013-10-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The early relatively mature products are GPS / GLONASS combined receivers, such as the products of Ashtech and NovAtel, etc., but the dual-constellation system navigation in this product only assists each other after the two constellations are positioned separately, which can only be called a combination Navigation receivers, not dual-mode receivers

Method used

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  • Dual-mode navigator with GPS receiving mode and plough receiving mode
  • Dual-mode navigator with GPS receiving mode and plough receiving mode
  • Dual-mode navigator with GPS receiving mode and plough receiving mode

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] The hardware platform of a kind of portable navigator of the present invention, as figure 1 As shown, it is composed of analog signal processing module 1, Beidou receiving module 2, GPS receiving module 3, processor module 4 and image 3 The configuration of the power module shown.

[0022] The analog signal processing module 1 includes an antenna 1-1, a low noise amplifier 1-2, a filter 1-3 and a power divider 1-4. The signal preprocessed by the analog signal processing module realizes signal separation, frequency conversion and gain amplification through the respective RF front-end modules 2-1 and 3-1 of GPS and Beidou to obtain two intermediate frequency signals. After the GPS signal is processed by the integrated GPS baseband processing chip 3-2, the result is transmitted to the OMAP processor; the Beidou signal is proces...

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Abstract

The invention provides a dual-mode navigator with a GPS receiving mode and a plough receiving mode. Satellites of two constellations can be used at the same time, so that the visible number of the satellites is increased. The navigator comprises an analog signal processing module, a GPS receiving module, a plough receiving module, a processor module and a power supply module. The analog signal processing module comprises an antenna, a low-noise amplifier, a filter and a power divider. The GPS receiving module comprises a GPS radio frequency front end module and a base band signal processing module. The plough receiving module comprises a plough radio frequency front end module, a high-speed A/D converter, an FIFO cache and an FPGA. The processor module is an OMAP dual-core processor which comprises a DSP core and an ARM core.

Description

technical field [0001] The invention relates to a portable dual-mode navigator, in particular to a dual-mode navigator with two receiving modes of GPS and Beidou, which belongs to the field of navigation. Background technique [0002] The global satellite navigation system can provide all-time, all-weather, high-precision positioning services, and has a wide range of applications in various aspects such as weather monitoring, transportation, and emergency rescue. In recent years, with the advancement of embedded technology, the volume of navigation receivers has become smaller and smaller, the speed of processors has become faster and faster, and the functions have also increased. However, receivers based on a single mode have certain limitations when used in certain areas, such as being blocked by obstacles such as tall buildings or mountains, which will reduce the number of visible satellites or even cause signal loss of lock, which will cause positioning s failure. As p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/33
Inventor 陈禾师皓谢宜壮
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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