Aircraft navigation guidance and control ground simulation system performance evaluating method

A technology of ground simulation and simulation system, applied in the field of measurement

Inactive Publication Date: 2014-10-01
HARBIN INST OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

After searching the literature, it is found that there is no method to systematically analyze the effectiveness evaluation of the aircraft navigation guidance and control ground simulation system

Method used

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  • Aircraft navigation guidance and control ground simulation system performance evaluating method
  • Aircraft navigation guidance and control ground simulation system performance evaluating method
  • Aircraft navigation guidance and control ground simulation system performance evaluating method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The following is a description of system performance analysis combined with an actual simulation system.

[0044] Step 1: Select similar elements

[0045]The ground closed-loop simulation system of a twelve-degree-of-freedom space vehicle usually consists of four parts: the motion system, the measurement system, the dynamics simulation system and the GNC control system, such as figure 1 shown. The evaluation of the similarity between the ground simulation system and the actual spacecraft operation can be determined by the similarity between the four subsystems and the actual working conditions of the spacecraft, so we choose the similarity between the four subsystems and the actual situation as the similarity element.

[0046] Step 2: Determine the value of the similarity element

[0047] 2.1 Motion system

[0048] The motion system, also known as the motion simulator, can complete the motion in the three translational directions of X, Y, and Z and the motion in the ...

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Abstract

The invention relates to an aircraft navigation guidance and control ground simulation system performance evaluating method. Firstly, similar elements are chosen according to the system function principle, then numerical values and weight coefficients of all similar elements can be confirmed, and finally the similarity of a simulation system can be calculated out. The method can convert the performance evaluating problem into the practicable degree problem, can quantitatively analyze the heaven-earth consistency problem from aspects of dynamics, kinematics, measurement and navigation guidance and control and can objectively and quantitatively analyze the reliability of the ground simulation system based on the reliability theory. The evaluating method is clear in principle, simple in calculation, wider in application and capable of providing reference for performance analysis of other simulation systems.

Description

technical field [0001] The invention relates to measurement technology, in particular to a method for evaluating the effectiveness of an aircraft navigation guidance and control ground simulation system. Background technique [0002] The special operating environment of the aircraft makes the ground simulation test very important in its development process, and a key issue of the ground simulation test is how to determine the effectiveness of the ground simulation test, that is, to what extent the ground test results indicate the aircraft's performance. The situation in the actual movement is also called the "heaven-earth consistency" verification problem. [0003] Another formulation of performance analysis is the credibility and similarity of the simulation system, that is, the overall structure and behavior level of the simulation system as a simulation substitute system for the prototype system can be achieved under the specific purpose and meaning of modeling and simula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 李莉夏红伟刘飞马广程王常虹李秋实
Owner HARBIN INST OF TECH
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