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Atomic gyroscope navigation system and navigation solution method thereof

A navigation system and navigation solution technology, applied in the field of inertial navigation system, can solve problems such as application characteristics of SERF atomic spin gyroscope, design navigation system architecture and navigation solution method, etc., and achieve strong effectiveness and practicability. The effect of small error value and high precision

Active Publication Date: 2021-08-03
BEIHANG UNIV
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  • Application Information

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Problems solved by technology

However, due to the different measurement principles and detection methods, the input and output characteristics, error system and even application characteristics of SERF atomic spin gyroscopes are quite different from traditional mechanical gyroscopes and optical gyroscopes.
And the current application of SERF atomic gyroscope is still in the stage of single gyroscope measuring angular rate
Therefore, there is currently no navigation system architecture and navigation solution method designed for the application characteristics of SERF atomic spin gyroscopes

Method used

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  • Atomic gyroscope navigation system and navigation solution method thereof
  • Atomic gyroscope navigation system and navigation solution method thereof
  • Atomic gyroscope navigation system and navigation solution method thereof

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Experimental program
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Embodiment 1

[0102] Such as figure 1 As shown, the atomic gyro navigation system includes a first two-degree-of-freedom SERF atomic gyroscope, a second two-degree-of-freedom SERF atomic gyroscope, a three-axis accelerometer assembly, an installation platform, a four-axis frame system and a navigation computer; the installation platform is set horizontally and Fixed on the top of the four-axis frame system, the first two-degree-of-freedom SERF atomic gyroscope, the second two-degree-of-freedom SERF atomic gyroscope and the three-axis accelerometer assembly are fixed on the installation platform; the navigation computer is set on the adjacent side of the four-axis frame system, and its The data transmission lines are respectively connected to the first two-degree-of-freedom SERF atomic gyroscope, the second two-degree-of-freedom SERF atomic gyroscope, the three-axis accelerometer assembly and the measurement modules of the four-axis frame system; wherein,

[0103] The angle measurement modul...

Embodiment 2

[0110] Such as image 3 Shown, a kind of navigation solving method that adopts the atomic gyro navigation system of embodiment 1 to realize, its steps are as follows:

[0111] S1. Construct the earth-centered inertial coordinate system, the earth-centered fixed earth coordinate system, the local geographic coordinate system, the vehicle coordinate system, the platform coordinate system, the three-axis accelerometer assembly coordinate system and the navigation solution coordinate system;

[0112] The specific construction steps are as follows:

[0113] S101, construct the earth-centered inertial coordinate system, that is, by x i ,y i and z i The i system composed of axes, the origin is at the center of the earth; x i The axis is parallel to the intersection line of the local meridian plane and the equatorial plane at the initial moment (t=0), pointing from the center of the earth to the positive direction of the periphery; z i axis coincides with the Earth's rotation axi...

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Abstract

The invention discloses a navigation solution method realized based on an atomic gyroscope navigation system. The method comprises the following steps of S1, constructing coordinate systems for navigation solution, S2, defining navigation parameters including geographic longitude, geographic latitude, geographic height, north speed, east speed, vertical speed and carrier attitude angle, and related physical parameters including platform attitude angle and accelerometer installation misalignment angle, S3, solving the position and the speed of the atomic gyroscope navigation system, and solving the geographic longitude, the geographic latitude, the geographic height, the north speed, the east speed and the vertical speed of the carrier, and S4, calculating the attitude angle of the carrier according to the navigation parameters. According to the atomic gyroscope navigation system and the navigation solution method thereof, a framework of an inertial navigation system for the atomic gyroscope and the navigation solution method of the atomic gyroscope are provided for the first time, the application of the atomic gyroscope in the inertial navigation system is expanded, the error value between each piece of navigation data resolved by the navigation solution steps and actually measured navigation data is small, the precision is high, and the effectiveness and the practicability are high.

Description

technical field [0001] The invention relates to the technical field of inertial navigation systems, in particular to an atomic gyro navigation system and a navigation solution method thereof. Background technique [0002] Since the beginning of the 21st century, quantum physics science has greatly promoted the development of various disciplines, thereby also promoting the development of various measurement technologies based on quantum regulation. Among them, the atomic gyroscope is called a new type of gyroscope developed with the development of quantum technology, information technology, and instrumentation technology. It is the development direction of a new generation of high-precision gyroscopes. Then the fourth generation of gyro. Atomic gyroscopes can be divided into atomic spin gyroscopes and atomic interference gyroscopes according to their working principles. [0003] High-precision spin-exchange relaxation-free (Spin-ExchangeRelaxation-Free, SERF) atomic spin gy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/18G01C21/20
CPCG01C21/18G01C21/20
Inventor 蔡庆中涂勇强杨功流李健张博雅
Owner BEIHANG UNIV
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