X-ray pulsar/time difference astronomical Doppler combined navigation method of deep space probe
A time-difference and pulsar technology, applied to combined navigators and other directions, can solve problems that affect navigation accuracy, do not have complete observability, and cannot work alone for a long time
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0051] figure 1 The system flow chart of X-ray pulsar / time difference astro-Doppler integrated navigation method for deep space probe is given. Here, taking the approaching section of Mars exploration as an example, the specific implementation process of the present invention is described in detail:
[0052] 1. Establish a system state model based on orbital dynamics
[0053] The motion of the spacecraft during the approach to Mars is described as a heliocentric three-body model, and other perturbations are considered as process noise. The dynamic model in the sun center inertial coordinate system (J2000.0) can be written as:
[0054]
[0055] Where ||·|| represents the 2-norm of the vector, ||·|| 3 Represents the cube of ||·||, r and v are the position and velocity of the spacecraft relative to the sun. mu s and μ m are the gravitational constants of the sun and Mars, r m is the position vector of Mars relative to the sun, r sm =r-r m is the position vector of the...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com