Results 11 to 20 of about 796 (242)

Onboard software of Plasma Wave Experiment aboard Arase: instrument management and signal processing of Waveform Capture/Onboard Frequency Analyzer [PDF]

Earth, Planets and Space, 2018
We developed the onboard processing software for the Plasma Wave Experiment (PWE) onboard the Exploration of energization and Radiation in Geospace, Arase satellite.
Shoya Matsuda, Yoshiya Kasahara, Hirotsugu Kojima, Yasumasa Kasaba, Satoshi Yagitani, Mitsunori Ozaki, Tomohiko Imachi, Keigo Ishisaka, Atsushi Kumamoto, Fuminori Tsuchiya, Mamoru Ota, Satoshi Kurita, Yoshizumi Miyoshi, Mitsuru Hikishima, Ayako Matsuoka, Iku Shinohara   +15 more
doaj   +2 more sources

Enhanced Real-Time Onboard Orbit Determination of LEO Satellites Using GPS Navigation Solutions with Signal Transit Time Correction

Aerospace
Enhanced real-time onboard orbit determination for low-Earth-orbit satellites is essential for autonomous spacecraft operations. However, the accuracy of such systems is often limited by signal propagation delays between GPS satellites and the user ...
Daero Lee, Soon Sik Hwang
doaj   +2 more sources

Enhancing onboard orbit propagation : a deep dive into FPGA capabilities [PDF]

, 2023
LAUREA MAGISTRALELe missioni nello spazio profondo si basano principalmente su stazioni terrestri e coinvolgimento umano per determinare la posizione del veicolo spaziale tramite il tracciamento radiometrico e pianificare l'esecuzione delle manovre per ...
GIACOMINI, DAVIDE
core  

Evaluation of Geometric and Atmospheric Doppler for GNSS-RO Payloads [PDF]

AUT Journal of Electrical Engineering, 2017
To reduce the sampling rate in global navigation satellite system (GNSS)-radio occultation receivers, it is essential to establish a suitable estimation of Doppler frequency from the received signal in the satellite onboard receiver.
L. Mohammadi, S. Amiri, G.R. Mohammadkhani   +2 more
doaj   +1 more source

The CALorimetric Electron Telescope (CALET) on the International Space Station: Results from the First Two Years of Operation [PDF]

EPJ Web of Conferences, 2019
The CALorimetric Electron Telescope (CALET) space experiment, which has been developed by Japan in collaboration with Italy and the United States, is a high-energy astroparticle physics mission on the International Space Station (ISS).
Asaoka Y, Adriani O, Akaike Y, Asano K, Bagliesi MG, Berti E, Bigongiari G, Binns WR, Bonechi S, Bongi M, Bruno A, Brogi P, Buckley J H, Cannady N, Castellini G, Checchia C, Cherry M L, Collazuol G, Di Felice V, Ebisawa K, Fuke H, Guzik T G, Hams T, Hasebe N, Hibinov K, Ichimura M, Ioka K, Ishizaki W, Israel M H, Kasahara K, Kataoka J, Kataoka R, Katayose Y, Kato C, Kawanaka N, Kawakubo Y, Kohri K, Krawczynski H S, Krizmanic J F, Lomtadze T, Maestro P, Marrocchesi P S, Messineo A M, Mitchell J W, Miyake S, Moiseev A A, Mori K, Mori M, Mori N, Motz H M, Munakata K, Murakami H, Nakahira S, Nishimura J, De Nolfo G A, Okuno S, Ormes J F, Ozawa S, Pacini L, Palma F, Pal'shin V, Papini P, Penacchioni A V, Rauch B F, Ricciarini S B, Sakai K, Sakamoto T, Sasaki M, Shimizu Y, Shiomi A, Sparvoli R, Spillantini P, Stolzi F, Sugita S, Suh J E, Sulaj A, Takahashi I, Takayanagi M, Takita M, Tamura T, Tateyama N, Terasawa T, Tomida H, Torii S, Tsunesada Y, Uchihori Y, Ueno S, Vannuccini E, Wefel J P, Yamaoka K, Yanagita S, Yoshida A, Yoshida K   +92 more
doaj   +1 more source

Possibilities of Estimating F2 Layer Peak Plasma Frequency Using HF Radiation from High Apogee Satellites over Arctic Region

Remote Sensing, 2021
Based on the results of mathematical modeling, we consider the possibility to estimate the plasma frequency F2 layer maximum of the polar ionosphere (critical frequency, foF2) using frequency-sweeping radiation from a highly elliptical spacecraft orbit ...
Igor Krasheninnikov, Givi Givishvili
doaj   +1 more source

A Comparative Study of Vinti-Based Orbit Propagation and Estimation for CubeSats in Very Low Earth Orbits

, 2023
In recent years, there has been a growing interest in CubeSats and very low Earth orbit (VLEO) space missions. Mission SeaLion, a collaborative CubeSat mission between Old Dominion University, the U.S. Coast Guard Academy, and U.S. Air Force Institute of
Senecal, Ethan Michael
core   +1 more source

Fast On-orbit Pulse Phase Estimation of X-ray Crab Pulsar for XNAV Flight Experiments

, 2022
The recent flight experiments with Neutron Star Interior Composition Explorer (\textit{NICER}) and \textit{Insight}-Hard X-ray Modulation Telescope (\textit{Insight}-HXMT) have demonstrated the feasibility of X-ray pulsar-based navigation (XNAV) in the ...
Ge, Minyu, Lu, Fangju, Zheng, Shijie, Wang, Yidi, Zheng, Wei, Chen, Xiaoqian, Zhang, Shuangnan   +6 more
core   +1 more source

Positionless Attitude Estimation With Integrated Star and Horizon Sensors

IEEE Access
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,
Fernando de Almeida Martins, Valdemir Carrara, Roberto D'Amore   +2 more
doaj   +1 more source

Whistler waves observed by Solar Orbiter during its first orbit

, 2021
International audiencePlasma waves can play an important role in the evolution of the solar wind and the particle velocity distribution functions in particular. We analyzed the electromagnetic waves observed above a few Hz by the Radio Plasma Waves (RPW)
Louarn, Philippe, Chust, Thomas, Maksimovic, Milan, Colomban, Lucas, Krasnosekskikh, Volodya, Graham, Daniel, Horbury, Timothy, Owen, Christofer, Kretzschmar, Matthieu   +8 more
core   +1 more source