Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Jeffrey N. Twigg"'
Autor:
Brian M. Sadler, Fikadu T. Dagefu, Jeffrey N. Twigg, Gunjan Verma, Predrag Spasojevic, Richard J. Kozick, Justin Kong
Publikováno v:
IEEE Access, Vol 12, Pp 21954-21984 (2024)
Autonomous teams of unmanned ground and air vehicles rely on networking and distributed processing to collaborate as they jointly localize, explore, map, and learn in sometimes difficult and adverse conditions. Co-designed intelligent wireless networ
Externí odkaz:
https://doaj.org/article/87e8680c592c4656b8a9101cb421c003
Publikováno v:
IEEE Robotics and Automation Letters. 7:9167-9174
Publikováno v:
2022 56th Asilomar Conference on Signals, Systems, and Computers.
Publikováno v:
IEEE Transactions on Antennas and Propagation. 69:4569-4579
The radiation pattern of an antenna within an array environment is modified by mutual coupling to neighboring elements, which can create unknown phase and amplitude variation on the order of 10° and 5 dB. This uncertainty in the element patterns res
Publikováno v:
IEEE Robotics and Automation Letters. 5:6475-6482
Recent developments in low-VHF antenna design and parasitic antenna array research show it is possible to form multi-robot antenna arrays. These arrays have the potential to extend communication range in urban and indoor environments. However, existi
Publikováno v:
Autonomous Robots. 44:721-737
We consider the problem of simultaneous exploration and information collection in an initially unknown environment by multiple autonomous robots when the communication between robots is unreliable and intermittent. We propose a novel algorithm where
Publikováno v:
IEEE Transactions on Vehicular Technology. 67:10856-10870
Direction of arrival (DoA) estimation has wide-ranging applications and is particularly challenging in complex propagation environments. Conventional approaches estimate the DoA based on the phase of the impinging signal on a sensor array. This appro
Publikováno v:
SSRR
Radio communication between ground robots at low VHF frequencies is generally more reliable in complex environments compared to conventional systems operating at higher UHF frequencies. Unfortunately, high-gain directional antennas operating at low f
Publikováno v:
SPAWC
We consider the fundamental problem of direction of arrival (DoA) estimation for autonomous agents in obstacle-rich, near-ground channels. Classical phase-based approaches to DoA estimation rely on the impingement of the direct path signal on an ante
Publikováno v:
The International Journal of Robotics Research. 32:1398-1410
Many applications of autonomy are significantly complicated by the need for wireless networking, with challenges including scalability and robustness. Radio accomplishes this in a complex environment, but suffers from rapid signal strength variation