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Global navigation satellite system (GNSS) receiver system with intermediate frequency recording and replaying functions

A receiver, intermediate frequency technology, used in radio wave measurement systems, satellite radio beacon positioning systems, instruments, etc., can solve problems such as difficulty in popularization, achieve high-speed data transmission, system debugging and complete testing convenience, reduce complexity and cost effect

Active Publication Date: 2013-12-18
WUHAN NAVIGATION & LBS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, RPS products have just been launched, and there are still many deficiencies, especially for professional receiver testing; in addition, due to the price of RPS and the reason of the manufacturer, it is difficult to popularize it in China in a short time

Method used

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  • Global navigation satellite system (GNSS) receiver system with intermediate frequency recording and replaying functions
  • Global navigation satellite system (GNSS) receiver system with intermediate frequency recording and replaying functions
  • Global navigation satellite system (GNSS) receiver system with intermediate frequency recording and replaying functions

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Embodiment Construction

[0027] In addition to the energy supply of ordinary GNSS receivers, the present invention can not only synchronously record GNSS intermediate frequency data with flexible formats, but also realize the real-time work of hardware receivers by playing back intermediate frequency data files, ensuring that the hardware receiver system works without external assistance. Reproducibility testing under real conditions is realized autonomously under certain conditions. The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0028] The frame of the GNSS receiver system of the self-contained intermediate frequency recording and playback function of the embodiment is as follows figure 1 As shown, it includes the existing GNSS receiver subsystem of the existing GNSS receiver system, the intermediate frequency data recording subsystem, the intermediate frequency data real-time playback subsystem and the isolation c...

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Abstract

The invention relates to a global navigation satellite system (GNSS) receiver system with intermediate frequency recording and replaying functions. The GNSS receiver system comprises a GNSS receiver subsystem, an intermediate frequency data recording subsystem, an intermediate frequency data real-time replaying subsystem and an isolated compatible interface module; the intermediate frequency data recording subsystem consists of a data packing module, a real-time data uploading module and a data storage module; the intermediate frequency data real-time replaying subsystem consists of a data transmitting module, a real-time data downloading module and a data resolving module; and the subsystems are connected by the isolated compatible interface module. The GNSS receiver system has three working modes, namely a common positioning mode, a recording positioning mode and a replaying positioning mode; and the GNSS receiver system has the characteristics of strong structural compatibility, flexible data format, high-speed and continuous data transmission and the like.

Description

technical field [0001] The invention relates to a GNSS receiver system with an intermediate frequency recording and playback function. Background technique [0002] GNSS is the abbreviation of Global Navigation Satellite System, and the Chinese translation is Global Navigation Satellite System. According to the development requirements of GNSS receivers, people have designed a full-featured GNSS signal simulator on the basis of modeling the characteristics of GNSS signals in complex environments, such as GSS7700 of Spirent Communications. Although the GNSS signal simulator can simulate GNSS signals in various scenarios, its model cannot accurately simulate complex, changing, and polluted GPS signals caused by a series of environmental effects such as atmospheric propagation effects, building occlusion, and ocean surface reflections in real scenarios. distortion. In order to conduct a comprehensive scientific evaluation of receiver performance, it is necessary to evaluate v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/13G01S19/23
Inventor 张提升章红平严昆仑牛小骥
Owner WUHAN NAVIGATION & LBS INC
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