基于简化时空模型的SINS/CNS综合态度决定的精度分析
Conghai Ruan1, Hanxu Li1, Chonghui Li1
1College of Geospatial Information, Information Engineering University, Zhengzhou 450001, China.
Sensors (Basel, Switzerland)
|November 27, 2025
概括
这项研究简化了基于地面的天体导航系统/Strapdown惯性导航系统 (CNS/SINS) 集成导航的复杂时空模型. 简化的模型可以减少90%的计算负载,同时保持弧度第二级的态度准确性.
科学领域:
- 导航系统工程 导航系统工程
- 地质物理学和天文学地质测量
背景情况:
- 目前的地面天文导航系统/Strapdown惯性导航系统 (CNS/SINS) 综合导航模型需要广泛的天文知识,这对导航专业人士来说是一个障碍.
- 对于中枢神经系统/内枢神经系统的时空转换过程中的参数简化,缺乏严格的论证.
研究的目的:
- 开发一个简化的时空转换模型,用于地面的CNS/SINS集成导航.
- 为了减少模型的复杂性和降低使用值,同时确保弧秒级的态度准确性 (满足5弧秒的要求).
主要方法:
- 定量分析和论证,以识别和消除复杂的时空模型组件,对态度准确性的影响最小.
- 分析的因素包括正确运动,年偏差,光偏移,光偏移,前行节点,时间系统和校准参数.
- 在坐标转换过程中对精度贡献不到0.1弧秒的参数被简化或忽略.
主要成果:
- 发现每年对抛物线和光偏移的校正对准确度的影响微不足道.
- UTC时间可以用于大多数天文参数计算,除了地球旋转角度 (UT1-UTC).
- 简化模型将计算负载降低了90%并满足弧度第二级态度准确性要求.
结论:
- 拟议的简化时空模型显著降低了基于地面的CNS/SINS集成导航的复杂性和计算成本.
- 该模型保持了对校准参数的高稳定性和准确性,适用于态度计算.
- 简化的模型显示了扩展到动态,空中或基于太空的智能导航系统的潜力.
更多相关视频
11:14A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants
Published on: October 4, 2015
11.4K
06:37Author Spotlight: Addressing Technical and Subjective Challenges in Measuring Classroom Attention
Published on: December 15, 2023
5.2K
相关概念视频
Stereotype Content Model
15.3K
The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
15.3K
Relative Motion Analysis using Rotating Axes-Problem Solving
685
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
Here, in order to determine the magnitude of velocity and acceleration for point...
685
Relative Motion Analysis using Rotating Axes
865
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
865
Absolute Motion Analysis- General Plane Motion
510
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
510
