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A gnss/ins integrated navigation synchronization simulation system

A technology of integrated navigation and simulation system, which is applied in the field of GNSS/INS integrated navigation synchronization simulation system, can solve the problems of increasing the amount of navigation calculation data, unable to guarantee the synchronization of the output signal of the GNSS signal simulator and the output data of the INS simulation system, etc., to achieve The effect of reducing complexity and improving accuracy and precision

Active Publication Date: 2015-10-21
SPACE STAR TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0005] However, the GNSS signal simulator and the INS simulation system are two separate simulation systems, and the synchronization of the output signal of the GNSS signal simulator and the output data of the INS simulation system cannot be guaranteed
The out-of-synchronization of GNSS signal output and INS data output and the inconsistency of output frequency sometimes lead to the need to design multiple filters for the receiver, thus increasing the amount of data for navigation calculation

Method used

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  • A gnss/ins integrated navigation synchronization simulation system
  • A gnss/ins integrated navigation synchronization simulation system
  • A gnss/ins integrated navigation synchronization simulation system

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be further introduced below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, the GNSS / INS integrated navigation synchronization simulation system of the present invention is used to provide the GNSS / INS integrated navigation receiver with an analog signal for testing, specifically including a carrier trajectory generation module, a GNSS (satellite navigation) simulation subsystem, an INS (inertial navigation system) navigation) simulation subsystem, radio frequency module and clock shunt synchronization module. The clock branch synchronization module includes a clock synchronization unit and an inertial navigation data output unit, which are used to realize the synchronization of GNSS simulation and INS simulation.

[0028] The carrier movement trajectory generation module generates carrier movement parameters according to the set carrier type, motion type and parameters...

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Abstract

The invention discloses a synchronous simulation system of a GNSS (Global Navigation Satellite System) / INS (Inertial Navigation System) integrated navigation. The synchronous simulation system includes a carrier motion trajectory generation module, a GNSS simulation subsystem, an INS simulation subsystem, a radio frequency module, and a clock shunt synchronization module; the carrier motion trajectory generation module, according to a set carrier type and a motion type and parameter, generates a carrier motion parameter; the clock shunt synchronization module includes a clock synchronization unit and an inertial navigation data output unit; the clock synchronization unit through a clock synchronization bus is connected with the inertial navigation data output unit and the GNSS simulation subsystem; and the INS simulation subsystem includes an inertial measurement device simulation module and an inertial navigation positioning calculation module. In the invention, the synchronous simulation of the GNSS signal and the INS data is realized, can meet the test requirements of loose integrated navigation system, tight integrated navigation system, and deep integrated navigation system of the GNSS / INS.

Description

technical field [0001] The invention relates to a synchronous simulation system of integrated navigation of satellite navigation (GNSS) and inertial navigation (INS), which realizes the synchronous simulation of satellite navigation signal and inertial navigation data, and can meet the requirements of GNSS / INS loose integrated navigation system, tight integrated navigation system and The test of the deep integrated navigation system provides a comprehensive simulation environment for the development and testing of the integrated navigation system of vehicles, ships, aircraft, missiles and other high-precision and high-dynamic carriers. Background technique [0002] The GNSS signal simulator simulates various satellite navigation signals received by the receiver according to the influence of various factors such as the dynamic characteristics of the carrier, thereby providing a simulation environment for the development and testing of the receiver. Due to the shortcomings of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/23G01S19/47G01S19/49G01C25/00
CPCG01C25/005G01S19/23G01S19/47G01S19/49
Inventor 郝庆畅陈潇王晔毕亮蔡乐邹国际郭大军李醒华
Owner SPACE STAR TECH CO LTD
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