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When transmitting a signal over a large distance it is more efficient to send a brief beamed signal than a continuous omni-directional transmission but this requires that the receiver knows where and when to look for the transmission. For…

Astrophysics · Physics 2009-10-31 Robin H. D. Corbet

A system of synchronized radio telescopes is utilized to search for hypothetical wide bandwidth interstellar communication signals. Transmitted signals are hypothesized to have characteristics that enable high channel capacity and minimally…

Signal Processing · Electrical Eng. & Systems 2022-03-01 William J. Crilly

This paper exhibits a short-run correspondence method appropriate for swarm versatile robots application. Infrared is utilized for transmitting and accepting information and obstruction location. The infrared correspondence code based swarm…

Robotics · Computer Science 2016-08-15 Rafiqul Islam , Iftekharul Mobin , Md. Nazmus Shakib , Md Matiur Rahman

The Star Watch extreme-precision astrometry mission (0.1 - 1.0 uas) builds on technology developed, and validated, during the SIM (Space Interferometry Mission) project. The sole science instrument is an optical interferometer with 50-cm…

Instrumentation and Methods for Astrophysics · Physics 2019-07-19 Philip Horzempa

Under the hypothesis that self-reproducing probes have formed a galactic-scale communication network by direct Gravitationally-Lensed (GL) links between neighboring systems, we identify Wolf 359, the third nearest stellar system, as an…

Instrumentation and Methods for Astrophysics · Physics 2022-12-14 Michael Gillon , Artem Burdanov , Jason T. Wright

In this paper we outline the considerations required in order to select a target star system for the Icarus interstellar mission. It is considered that the maximum likely range for the Icarus vehicle will be 15 light-years, and a list is…

Astrophysics of Galaxies · Physics 2011-06-07 I. A. Crawford

This paper proposes a novel swarm-based control algorithm for exploration and coverage of unknown environments, while maintaining a formation that permits short-range communication. The algorithm combines two elements: swarm rules for…

Robotics · Computer Science 2022-01-26 Vu Phi Tran , Matthew A. Garratt , Kathryn Kasmarik , Sreenatha G. Anavatti

The on-orbit intelligent planning of satellites swarm has attracted increasing attention from scholars. Especially in tasks such as the pursuit and attachment of non-cooperative satellites, satellites swarm must achieve coordinated…

Multiagent Systems · Computer Science 2024-06-04 yonghao Li

The analysis of Proxima Centauri's radial velocities recently led Anglada-Escud\'e et al. (2016) to claim the presence of a low mass planet orbiting the Sun's nearest star once every 11.2 days. Although the a-priori probability that Proxima…

Telescope missions are currently being designed which will make direct imaging of habitable exoplanets possible in the near future, and studies are needed to quantify the detectability of biosignature features in the planet's reflectance…

Earth and Planetary Astrophysics · Physics 2024-09-12 Connor O. Metz , Nancy Y. Kiang , Geronimo L. Villanueva , Mary N. Parenteau , Vincent Kofman

Planetary bodies such as asteroids, comets, and planetary moons are high-value science targets as they hold important information about the formation and evolution of our solar system. However, due to their low-gravity, variable sizes and…

Instrumentation and Methods for Astrophysics · Physics 2019-01-15 Ravi Teja Nallapu , Jekan Thangavelautham

In this work we consider development of IR-based communication and perception mechanisms for real microrobotic systems. It is demonstrated that a specific combination of hardware and software elements provides capabilities for navigation,…

Robotics · Computer Science 2011-09-19 S. Kornienko , S. Kornienko

The detection and characterisation of Earth-like planets with Doppler signals of the order of 1 m/s currently represent one of the greatest challenge for extrasolar-planet hunters. As results for such findings are often controversial, it is…

Earth and Planetary Astrophysics · Physics 2017-03-15 M. Damasso , F. Del Sordo

Small satellite systems enable whole new class of missions for navigation, communications, remote sensing and scientific research for both civilian and military purposes. As individual spacecraft are limited by the size, mass and power…

Networking and Internet Architecture · Computer Science 2016-09-29 Radhika Radhakrishnan , William Edmonson , Fatemeh Afghah , R. Rodriguez-Osorio , Frank Pinto , Scott Burleigh

A search was conducted for laser signals, both sub-second pulses and continuous emission, from the regions of the sky opposite Proxima and Alpha Centauri. These regions are located at the foci of the gravitational lensing caused by the Sun,…

Instrumentation and Methods for Astrophysics · Physics 2021-11-03 Geoffrey W. Marcy , Nathaniel K. Tellis , Edward H. Wishnow

The detection of Earth-like exoplanets in the habitable zone of their stars, and their spectroscopic characterization in a search for biosignatures, requires starlight suppression that exceeds the current best ground-based performance by…

Instrumentation and Methods for Astrophysics · Physics 2017-09-26 Brendan Crill , Nicholas Siegler

A key requirement in robotics is the ability to simultaneously self-localize and map a previously unknown environment, relying primarily on onboard sensing and computation. Achieving fully onboard accurate simultaneous localization and…

Robotics · Computer Science 2024-08-28 Vlad Niculescu , Tommaso Polonelli , Michele Magno , Luca Benini

The Breakthrough Starshot project aims to send centimeter-sized, gram-scale "StarChip" probes to Alpha Centauri at a speed of $\sim0.2c$. On the other hand, Zhang \& Li recently proposed that trans-relativistic cameras may be sent to any…

High Energy Astrophysical Phenomena · Physics 2019-05-28 Jin-Ping Zhu , Bing Zhang , Yuan-Pei Yang

Proxima c, a candidate second planet orbiting Proxima Centauri, was detected with the radial velocity method. The announced long orbital period (5.21$^{+0.26}_{-0.22}$ years), and small semi-amplitude of the induced Doppler signal…

Earth and Planetary Astrophysics · Physics 2020-04-01 Mario Damasso , Fabio Del Sordo

In this paper, we propose a swarming approach and optimize the one-hop delay for interplatoon communications through adjusting the minimum contention window size of each backbone vehicle in two steps. In the first step, we first set a small…

Networking and Internet Architecture · Computer Science 2020-11-03 Qiong Wu , Shuzhen Nie , Pingyi Fan , Hanxu Liu , Fan Qiang , Zhengquan Li