A Satellite Relative Navigation based on Hardware Characteristics of Femtosecond Laser

Kang, Dae Eun; Park, Sang Young; Lee, Jongwoo

doi:10.11159/icmie17.119

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…1 presents the measurement performance of the laser that is described by the mean and standard deviation of the measurement error with respect to distance. The mean and standard deviation of the error diverges after approximately 10 km; thus, 10 km is the distance limit of the femtosecond laser (Kang et al 2017).…”

Section: Laser-based Measurementmentioning

confidence: 95%

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Relative Navigation with Intermittent Laser-based Measurement for Spacecraft Formation Flying

Lee

Park²,

Kang

2018

Journal of Astronomy and Space Sciences

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This paper presents relative navigation using intermittent laser-based measurement data for spacecraft flying formation that consist of two spacecrafts; namely, chief and deputy spacecrafts. The measurement data consists of the relative distance measured by a femtosecond laser, and the relative angles between the two spacecrafts. The filtering algorithms used for the relative navigation are the extended Kalman filter (EKF), unscented Kalman filter (UKF), and least squares recursive filter (LSRF). Numerical simulations reveal that the relative navigation performances of the EKF- and UKF-based relative navigation algorithms decrease in accuracy as the measurement outage period increases. However, the relative navigation performance of the UKF-based algorithm is 95 % more accurate than that of the EKF-based algorithm when the measurement outage period is 80 sec. Although the relative navigation performance of the LSRF-based relative navigation algorithm is 94 % and 370 % less accurate than those of the EKF- and UKF-based navigation algorithms, respectively, when the measurement outage period is 5 sec; the navigation error varies within a range of 4 %, even though the measurement outage period is increased. The results of this study can be applied to the design of a relative navigation strategy using the developed algorithms with laser-based measurements for spacecraft formation flying.

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Section: Laser-based Measurementmentioning

confidence: 95%

“…1. Mean (left figure) and standard deviation (right figure) of the measurement data error from the mtosecond laser with respect to distance(Kang et al 2017).…”

mentioning

confidence: 99%

Relative Navigation with Intermittent Laser-based Measurement for Spacecraft Formation Flying

Lee

Park²,

Kang

2018

Journal of Astronomy and Space Sciences

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“…The laser measurement data was generated by a laser simulation algorithm introduced in Jung et al (2012). The laser measurement data additionally considers the hardware properties caused by electrical circuits and RF elements in the instrument (Kang et al 2017). The generated laser measurement data has about 100 μm level error within 10 km and worse performance as the inter-satellite range increases.…”

Section: Simulation Settingmentioning

confidence: 99%

Characteristics of Relative Navigation Algorithms Using Laser Measurements and Laser-GPS Combined Measurements

Kang

Park²,

Son

2018

Journal of Astronomy and Space Sciences

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This paper presents a satellite relative navigation strategy for formation flying, which chooses an appropriate navigation algorithm according to the operating environment. Not only global positioning system (GPS) measurements, but laser measurements can also be utilized to determine the relative positions of satellites. Laser data is used solely or together with GPS measurements. Numerical simulations were conducted to compare the relative navigation algorithm using only laser data and laser data combined with GPS data. If an accurate direction of laser pointing is estimated, the relative position of satellites can be determined using only laser measurements. If not, the combined algorithm has better performance, and is irrelevant to the precision of the relative angle data between two satellites in spherical coordinates. Within 10 km relative distance between satellites, relative navigation using double difference GPS data makes more precise relative position estimation results. If the simulation results are applied to the relative navigation strategy, the proper algorithm can be chosen, and the relative position of satellites can be estimated precisely in changing mission environments.

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A Satellite Relative Navigation based on Hardware Characteristics of Femtosecond Laser

Cited by 2 publications

References 8 publications

Relative Navigation with Intermittent Laser-based Measurement for Spacecraft Formation Flying

Relative Navigation with Intermittent Laser-based Measurement for Spacecraft Formation Flying

Characteristics of Relative Navigation Algorithms Using Laser Measurements and Laser-GPS Combined Measurements

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