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The advent of 6G is expected to enable many use cases which may rely on accurate knowledge of the location and orientation of user equipment (UE). The conventional localization methods suffer from limitations such as synchronization and…

Signal Processing · Electrical Eng. & Systems 2025-05-06 Srikar Sharma Sadhu , Praful D. Mankar , Santosh Nannuru

This paper presents an information-based guidance and control architecture for an autonomous deputy spacecraft tasked with inspecting a chief satellite in orbit. The primary objective is for the deputy spacecraft to maximize information…

Systems and Control · Electrical Eng. & Systems 2025-12-03 Tochukwu Elijah Ogri , Muzaffar Qureshi , Zachary I. Bell , Wanjiku A. Makumi , Kyle Volle , Rushikesh Kamalapurkar

Multi orbit low earth orbit (LEO) satellites communication is envisioned as a key infrastructure to deliver global coverage, enabling future services from space air ground integrated networks.However, the optimized design of LEO which…

Systems and Control · Electrical Eng. & Systems 2025-11-18 Yingzhuo Sun , Yulan Gao , Ming Xiao , Zhu Han , Octavia A. Dobre

Exploration of extreme or remote environments such as Mars is often recognized as an opportunity for multi-robot systems. However, this poses challenges for maintaining robust inter-robot communication without preexisting infrastructure. It…

Robotics · Computer Science 2024-10-11 Gjosse Zijlstra , Karen L. Aplin , Edmund R. Hunt

Interest in the use of the low earth orbit (LEO) in space - from $160 \text{ km}$ to $2000 \text{ km}$ - has skyrocketed; this is evident by the fact that National Aeronautics and Space Administration (NASA) has partnered with various…

Signal Processing · Electrical Eng. & Systems 2025-02-11 Don-Roberts Emenonye , Harpreet S. Dhillon , R. Michael Buehrer

We present a method for autonomous exploration of large-scale unknown environments under mission time constraints. We start by proposing the Frontloaded Information Gain Orienteering Problem (FIG-OP) -- a generalization of the traditional…

We present a machine learning based information retrieval system for astronomical observatories that tries to address user defined queries related to an instrument. In the modern instrumentation scenario where heterogeneous systems and…

Instrumentation and Methods for Astrophysics · Physics 2018-03-28 Nikhil Mukund , Saurabh Thakur , Sheelu Abraham , A. K. Aniyan , Sanjit Mitra , Ninan Sajeeth Philip , Kaustubh Vaghmare , D. P. Acharjya

Spacecraft must operate under environmental and actuator uncertainties while meeting strict safety requirements. Traditional approaches rely on scenario-based heuristics that fail to account for stochastic influences, leading to suboptimal…

Systems and Control · Electrical Eng. & Systems 2025-12-10 Quentin Rommel , Michael Hibbard , Pavan Shukla , Himanshu Save , Srinivas Bettadpur , Ufuk Topcu

The Iterative Closest Point (ICP) algorithm is a crucial component of LiDAR-based SLAM algorithms. However, its performance can be negatively affected in unstructured environments that lack features and geometric structures, leading to low…

Robotics · Computer Science 2025-06-03 Haosong Yue , Qingyuan Xu , Fei Chen , Jia Pan , Weihai Chen

In this chapter we review our knowledge of our galaxy's cometary population outside our Oort Cloud - exocomets and Interstellar Objects (ISOs). We start with a brief overview of planetary system formation, viewed as a general process around…

Earth and Planetary Astrophysics · Physics 2023-04-03 Alan Fitzsimmons , Karem Meech , Luca Matrà , Susanne Pfalzner

A model predictive control (MPC) framework is developed for station-keeping in spacecraft formation flight along libration point orbits. At each control period, the MPC policy solves a multi-vehicle optimal control problem (MVOCP) that…

Systems and Control · Electrical Eng. & Systems 2026-03-11 Yuri Shimane , Purnanand Elango , Avishai Weiss

The following paper presents a novel orthogonal pilot design dedicated for \textcolor{black}{integrated sensing and communications (ISAC)} systems performing multi-user communications and target detection. After careful characterization of…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Ahmad Bazzi , Marwa Chafii

The emergence of time-domain multi-messenger (astro)physics requires for new, improved ways of interchanging scheduling information, in order to allow more efficient collaborations between the various teams. Currently space- and…

Low Earth Orbit (LEO) satellite constellations are bringing the Internet of Things (IoT) to the space arena, also known as non-terrestrial networks. Several IoT satellite applications for tracking ships and cargo can be seen as exemplary…

Networking and Internet Architecture · Computer Science 2020-07-13 Federico Chiariotti , Olga Vikhrova , Beatriz Soret , Petar Popovski

The observation of small bodies in the Space Environment is an ongoing important task in astronomy. While nowadays new objects are mostly detected in larger sky surveys, several follow-up observations are usually needed for each object to…

A tripartite system with entangled non-orthogonal states is used to transfer retrievable or usable information without requiring an external channel, ipso-information-transfer (IIT). The non-Schmidt decomposable entanglement couples two…

Quantum Physics · Physics 2007-05-23 John V. Corbett , Dipankar Home

In recent years, a large number of geosynchronous satellites are being planned to provide augmentation services for enhancing the precision to global positioning systems, e.g., GPS, in applications such as aircraft landing. In this paper,…

Space Physics · Physics 2011-09-23 C. R. Subrahmanya , Peeyush Prasad , R. Somashekar

We develop a new Location Verification System (LVS) focussed on network-based Intelligent Transport Systems and vehicular ad hoc networks. The algorithm we develop is based on an information-theoretic framework which uses the received…

Information Theory · Computer Science 2014-10-10 Shihao Yan , Robert Malaney , Ido Nevat , Gareth W. Peters

In medical decision making, we have to choose among several expensive diagnostic tests such that the certainty about a patient's health is maximized while remaining within the bounds of resources like time and money. The expected increase…

Artificial Intelligence · Computer Science 2019-09-19 Sarthak Ghosh , C. R. Ramakrishnan

The problem of mobile position estimation in multipath scenarios is addressed. A low-complexity, fully-adaptive algorithm is proposed, based on the pseudo maximum likelihood approach. The processing is done exclusively on-board at the…

Signal Processing · Electrical Eng. & Systems 2019-02-12 Alessio Fascista , Angelo Coluccia , Giuseppe Ricci
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