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System and method for real-time high-dynamic navigation signal simulator

A navigation signal and satellite navigation technology, applied in the field of satellite navigation, can solve the problems of low real-time performance of navigation signal simulation, difficult to meet the strong real-time requirements of closed loop, etc., and achieve the effects of fast simulation speed, high dynamic performance and high precision

Active Publication Date: 2012-02-15
SPACE STAR TECH CO LTD
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Problems solved by technology

Domestic research is still in its infancy, and there is no published literature abroad
Moreover, the current simulation of navigation signals is not very real-time, and it is difficult to meet the closed-loop strong real-time requirements

Method used

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  • System and method for real-time high-dynamic navigation signal simulator
  • System and method for real-time high-dynamic navigation signal simulator
  • System and method for real-time high-dynamic navigation signal simulator

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Embodiment Construction

[0044] Such as figure 1 As shown, the main difference between the real-time and high-dynamic navigation signal simulator of the present invention and the ordinary navigation signal simulator is the real-time capability. figure 1 It is a semi-physical simulation example of building an aircraft control system using a highly dynamic navigation signal simulator. In the hardware-in-the-loop simulation system, the high-dynamic navigation signal simulator receives the aircraft motion information from the aircraft control system in real time, and then generates the radio frequency signal in real time. From receiving aircraft movement information to generating radio frequency signals, the time delay of the real-time high-dynamic navigation signal simulator is less than 10ms, which meets the closed-loop simulation requirements of the entire system.

[0045] Such as figure 2 As shown, the system of the present invention includes: a satellite navigation message generation module, a real-time...

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Abstract

The invention relates to a system and a method for a real-time high-dynamic navigation signal simulator. The system comprises a satellite navigation message generating module, a real-time simulating control module, an observation data generating module, a navigation signal processing module, an intermediate-frequency signal generating module and an up-conversion module. The system provided by theinvention can be used for solving the problem of generating a track real-time navigation signal for an external user, meet the developing demands of real-time closed-loop simulation and navigation half-physical simulation, and support an index test of a flight control system.

Description

Technical field [0001] The invention belongs to the technical field of satellite navigation, and relates to a real-time high-dynamic navigation signal simulator system and method. Background technique [0002] In recent years, with the technological development of global satellite navigation systems, navigation receivers have been widely used. In order to meet the development and testing of navigation receivers, satellite navigation simulators are required. [0003] The satellite navigation simulator is used to simulate the multi-channel navigation satellite signals received by the receiver antenna under different conditions. The satellite navigation simulator can fully simulate the various complex situations encountered by the navigation receiver during the movement of the dynamic carrier. It can provide a simulation environment for the development and testing of the navigation receiver, especially the high dynamic receiver. It can also be used for system-level navigation. Simul...

Claims

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Application Information

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IPC IPC(8): G01S19/13G01S19/23
Inventor 陈潇孟斌王宏伟王晔王玲毕亮刘红轩徐振兴蔡乐张爽娜俞能杰
Owner SPACE STAR TECH CO LTD
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