Satellite navigation system baseband signal processing system and method

A technology of baseband signal processing and satellite navigation system, applied in the field of satellite navigation, can solve the problems of large receiver scale and increased equipment cost, and achieve the effect of improving acquisition speed and high efficiency

Inactive Publication Date: 2015-12-09
WUHAN MENGXIN TECH CO LTD
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Problems solved by technology

With the development of global satellite navigation technology, multi-system integration is one of the inevitable development trends. If the number of physical channels inside the baseband of the receiver is simply expanded by the fusion of existing technologies, it can adapt to the integration of multiple global satellite navigation systems. needs, it will inevitably lead to larger and larger receiver scales, and a significant increase in equipment costs

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  • Satellite navigation system baseband signal processing system and method

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Embodiment Construction

[0044] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0045] like figure 1 As shown, a satellite navigation system baseband signal processing system includes a multi-channel preprocessing module, a multi-channel data buffer module, a capture channel, a tracking channel and a control module;

[0046] The multi-channel preprocessing module can be flexibly configured by the control module to receive the input of single-channel or multi-channel input signals, and realize the conversion of different data formats according to the configuration parameters after the discrimination of the scene mode by the control module. Adjust, down-sample and filter, and pass the processed signal to the multi-channel data buffer module;

[0047] The data format of the input signal supports ...

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Abstract

The invention relates to a satellite navigation system baseband signal processing system, which belongs to the field of satellite navigation. The system comprises a multi-channel pre-processing module, a multi-channel data buffer module, a code generation/external interface module, a capturing channel, a tracking channel and a control module. The multi-channel pre-processing module is used for pre-processing an input signal. The multi-channel data buffer module forms one or more data buffer areas. The code generation/external interface module provides a pseudo-random code for the capturing channel and the tracking channel. The capturing channel captures data from a multi-channel data buffer area. The tracking channel tracks a signal in the multi-channel data buffer area. The control module carries out scene mode judgment according to signals in the capturing channel and the tracking channel, and determines configuration parameters for each module based on a judgment result. According to the invention, the configuration parameters of each module can be adjusted according to an environment state; hardware resources are flexibly and rationally allocated; and an optimum performance result is realized through the minimum hardware resource.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a satellite navigation system baseband signal processing system and method. Background technique [0002] Global Navigation Satellite System (GNSS) is a general name for a standard satellite navigation system that provides autonomous geospatial positioning around the world. GNSS allows small electronic receiving devices to measure their position (including longitude, latitude and altitude), speed and time by regularly receiving radio wave signals emitted by satellites within the range along the line of sight. [0003] So far, the US Navigation Star (NAVSTAR) Global Positioning System (GPS) is the only GNSS that has been fully implemented. Russia's GLONASS navigation system is currently in the process of being repaired and is expected to be fully operational in 2010. The EU Galileo positioning system (Galileopositioningsystem) is still in the initial stage of deployment. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/37G01S19/30
CPCG01S19/37G01S19/30
Inventor 屠恩源韩绍伟莫钧
Owner WUHAN MENGXIN TECH CO LTD
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