Zobrazeno 1 - 10
of 1 363
pro vyhledávání: '"Star sensor"'
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2024, Iss 1, Pp 1-17 (2024)
Abstract This paper proposes an all-sky star map identification algorithm that can simultaneously achieve high identification probability, low algorithm complexity, and small databases for well photometric and intrinsic parameters-calibrated star sen
Externí odkaz:
https://doaj.org/article/5a1131a12e7a4037bb0c2d46add5cf0d
Publikováno v:
Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-21 (2024)
Abstract This paper suggests a new onboard calibration procedure for star sensors installed on low Earth orbit satellites. In this procedure, all the error factors are investigated, and an accurate model of the star sensor is presented. Then, a new s
Externí odkaz:
https://doaj.org/article/3409c3a90c554abca0eebc3982f19f4f
Publikováno v:
IEEE Access, Vol 12, Pp 2340-2348 (2024)
With an increasing demand for nanosatellites to perform accurate pointing, such as on Earth observation missions, the availability and accuracy of the orbital position and velocity information on board the satellite’s computer become indispensable,
Externí odkaz:
https://doaj.org/article/b148d11a123a4eb39c8ae5a8405b8be7
Publikováno v:
Hangkong bingqi, Vol 30, Iss 6, Pp 109-116 (2023)
The novel celestial navigation method based on starlight refraction has attracted widespread attention in the aerospace field due to its strong autonomy and high navigation accuracy. However, aero-optical effect occurs when starlight passes through t
Externí odkaz:
https://doaj.org/article/6fa67b71fb7f4f9fac9fb8c4200a58ae
Autor:
Mona Zahednamazi, Alireza Toloui
Publikováno v:
فصلنامه علوم و فناوری فضایی, Vol 16, Iss 4, Pp 57-70 (2023)
One of the attitude sensors for the spacecraft is the star sensor. The attitude calculation by the star sensor includes several steps: image processing, star identification, database search, and implementation of the attitude determination algorithm.
Externí odkaz:
https://doaj.org/article/9cd9827bcc9b4d6e81044e1751006cd1
Publikováno v:
Remote Sensing, Vol 16, Iss 16, p 3063 (2024)
The star sensor boasts the highest accuracy in spacecraft attitude measurement. However, it is vulnerable to disturbances, including high-dynamic motion, stray light, and various in-orbit environmental factors. These disruptions may lead to a signifi
Externí odkaz:
https://doaj.org/article/75f7af0d054348b5ba966657fdac57b1
Publikováno v:
Sensors, Vol 24, Iss 11, p 3698 (2024)
Aiming to address the chicken-and-egg problem in star identification and the intrinsic parameter determination processes of on-orbit star sensors, this study proposes an on-orbit self-calibration method for star sensors that does not depend on star i
Externí odkaz:
https://doaj.org/article/b8dc6241e73d43cbaad4326168684cfa
Publikováno v:
Hangkong bingqi, Vol 30, Iss 4, Pp 91-97 (2023)
Star sensors installed on near-space vehicles are susceptible to earth-atmosphere radiation. As a result, the accuracy of star extraction and the performance of celestial system is significantly degraded. Aiming at this problem, a high precision star
Externí odkaz:
https://doaj.org/article/c0652bd9e14e4f7da112825907db8b48
Publikováno v:
Hangkong bingqi, Vol 30, Iss 3, Pp 87-92 (2023)
To solve the guidance error caused by inaccurately initial position of rapid launch in inertial navigation, a navigation method using a single satellite sensor to observe the near Earth communication satellite is proposed, which can correct the posit
Externí odkaz:
https://doaj.org/article/54a23f5430b64f1cb6316f61f28266da
Publikováno v:
IEEE Access, Vol 11, Pp 91100-91115 (2023)
The algorithm for star identification is a crucial technology for determining the orientation of spacecraft using star sensors. Traditional star identification algorithms achieve matching by seeking a unique or a few optimal solutions. However, in hi
Externí odkaz:
https://doaj.org/article/4e65dd89831046419f99de5b9f6f4f64