Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Grace Gao"'
Autor:
Adyasha Mohanty, Grace Gao
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2024, Iss 1, Pp 1-40 (2024)
Abstract Global Navigation Satellite Systems (GNSS)-based positioning plays a crucial role in various applications, including navigation, transportation, logistics, mapping, and emergency services. Traditional GNSS positioning methods are model-based
Externí odkaz:
https://doaj.org/article/1bf609e049424a0cb7f35018d96a45e3
Publikováno v:
SoftwareX, Vol 27, Iss , Pp 101811- (2024)
This paper presents gnss_lib_py, a Python library used to parse, analyze, and visualize data from a variety of GNSS (Global Navigation Satellite Systems) data sources. The gnss_lib_py library’s ease of use, modular capabilities, testing coverage, a
Externí odkaz:
https://doaj.org/article/545565d376f24c9abfc23c1f85f4b43c
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2024, Iss 1, Pp 1-16 (2024)
Abstract Optimizing the correlation properties of spreading codes is critical for minimizing inter-channel interference in satellite navigation systems. By improving the codes’ correlation sidelobes, we can enhance navigation performance while mini
Externí odkaz:
https://doaj.org/article/15a136663af44bfe9abcea19a3afed27
Publikováno v:
Navigation, Vol 71, Iss 2 (2024)
To protect civilian Global Positioning System (GPS) users from spoofing, the Air Force Research Lab has developed the chips-message robust authentication (Chimera) signal enhancement for the GPS L1C signal. With Chimera, standalone receivers that onl
Externí odkaz:
https://doaj.org/article/59b575180685487a9a2cbfe334996b09
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2023, Iss 1, Pp 1-30 (2023)
Abstract We propose a robust Bayesian filtering framework for state and multi-modal uncertainty estimation in urban settings by fusing diverse sensor measurements. Our framework addresses multi-modal uncertainty from various error sources by tracking
Externí odkaz:
https://doaj.org/article/4bb22d7ca36a4e4d8556f827fd1668b5
Publikováno v:
Navigation, Vol 71, Iss 1 (2024)
There is a growing interest in the use of legacy terrestrial Global Positioning System (GPS) signals to determine the precise positioning and timing onboard a lunar satellite. Unlike prior works that utilize pseudoranges with meter-level accuracy, we
Externí odkaz:
https://doaj.org/article/e3140afa2dbb48aaa80e2e63406e73fe
Autor:
Pavel Shekhtmeyster, Erin M. Carey, Daniela Duarte, Alexander Ngo, Grace Gao, Nicholas A. Nelson, Charles L. Clark, Axel Nimmerjahn
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-14 (2023)
Fluorescence imaging of the spinal cord poses challenges, including depth of imaging. Here the authors describe a custom microscope and chronically implanted microprism that enables multicolor translaminar imaging of sensory and motor evoked activity
Externí odkaz:
https://doaj.org/article/137a447789d147fbaeb10f29fbabd697
Autor:
Adyasha Mohanty, Grace Gao
Publikováno v:
Navigation, Vol 70, Iss 4 (2023)
Smartphone receivers comprise approximately 1.5 billion global navigation satellite system receivers currently manufactured worldwide. Smartphone receivers provide measurements with lower signal levels and higher noise than commercial receivers. Beca
Externí odkaz:
https://doaj.org/article/6c1db9b077bc425dba46c987349bc0af
Publikováno v:
Navigation, Vol 70, Iss 4 (2023)
To protect civilian global positioning system (GPS) users from spoofing attacks, the U.S. Air Force Research Lab has proposed the chips-message robust authentication (Chimera) enhancement for the L1C signal. In particular, the Chimera fast channel al
Externí odkaz:
https://doaj.org/article/257cd1fb38e84dc4a7816fd87b8126d9
Publikováno v:
Navigation, Vol 70, Iss 4 (2023)
There has been a growing interest in using small satellites (SmallSats) for a future lunar navigation and communication satellite system (LNCSS). We conceptualize the design of a SmallSat-based LNCSS with Earth-global positioning system (GPS) time tr
Externí odkaz:
https://doaj.org/article/f4a96ebd24d34b6ebea80f6347c5195f