Laser strapdown inertial navigation system

A strapdown inertial navigation and laser technology, applied in the field of inertial navigation, can solve the problems of poor versatility and high cost, and achieve the effect of strong versatility and cost reduction.

Inactive Publication Date: 2013-10-16
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0010] The purpose of the present invention is to overcome the defects of high cost and poor versatility in the prior art, and provide a simple, effecti

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  • Laser strapdown inertial navigation system
  • Laser strapdown inertial navigation system
  • Laser strapdown inertial navigation system

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[0050] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0051] Such as figure 1 As shown, a laser strapdown inertial navigation system is characterized in that the system includes:

[0052] Man-machine interface module: used to realize man-machine dialogue, parameter setting of carrier motion trajectory in simulation system, software gyroscope and accelerometer model parameter setting and simulation result display;

[0053] Dynamic trajectory generation: used to generate aircraft trajectory;

[0054] Sensor module: The attitude angle information and accelerometer information at a certain time point output by the dynamic trajectory generation algorithm module are used as the input of the software sensor, and the attitude of the aircraft at that time is calculated by the mathematical model of the gyroscope and the accelerometer model Information and acceleration information;

[0055] Software error model: used to ...

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Abstract

The invention discloses a laser strapdown inertial navigation system comprising a human-machine interaction interface module, a dynamic trajectory generation, a sensor module, a software error model, sensor simulation excitation hardware module, and a laser inertial navigation computer electronic component. With the system provided by the invention, cost is effectively reduced, and excessive consumption caused by the purchasing of physical inertial sensors or an actual flight test or a flight simulation test during testing, adjusting, and performance evaluation of the strapdown inertial navigation system computer electronic component are avoided. The system has high versatility, and can simulate inertial sensors of various types, such that the performance of a strapdown inertial navigation system computer electronic component can be comprehensively verified.

Description

technical field [0001] The invention relates to the technical field of inertial navigation, in particular to a laser strapdown inertial navigation system. Background technique [0002] The laser strapdown inertial navigation system (Strapdown Inertial Navigation System, SINS) consists of inertial sensors (including three-axis laser gyroscopes and three-axis accelerometers), laser electronic circuits, navigation computers, navigation programs, bus interfaces and some accessories. The system is connected to the carrier through the bracket, and the angular velocity and acceleration information output by the inertial measurement element is transmitted to the navigation computer, and the navigation computer calculates the position, velocity and attitude information of the carrier in real time through a specific navigation solution method. [0003] In the laser strapdown inertial navigation system, the attitude matrix is ​​the key element of the system, and the navigation compute...

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Application Information

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IPC IPC(8): G01C25/00
Inventor 高社生何鹏举魏文辉赵岩
Owner NORTHWESTERN POLYTECHNICAL UNIV
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