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Satellite quantum communications are emerging within the panorama of quantum technologies as a more effective strategy to distribute completely-secure keys at very long distances, therefore playing an important role in the architecture of a…

Quantum Physics · Physics 2021-05-20 Stefano Pirandola

We introduce a new real-time pipeline for Simultaneous Localization and Mapping (SLAM) and Visual Inertial Odometry (VIO) in the context of planetary rovers. We leverage prior information of the location of the lander to propose an…

Robotics · Computer Science 2020-12-01 J. de Curtó , R. Duvall

Air-gapped systems are considered highly secure against data leaks due to their physical isolation from external networks. Despite this protection, ultrasonic communication has been demonstrated as an effective method for exfiltrating data…

Cryptography and Security · Computer Science 2025-06-11 Mordechai Guri

Radio frequency fingerprint identification (RFFI) distinguishes wireless devices by the small variations in their analog circuits, avoiding heavy cryptographic authentication. While deep learning on spectrograms improves accuracy, models…

Cryptography and Security · Computer Science 2025-09-22 Aarushi Mahajan , Wayne Burleson

Passive emitter tracking (PET) algorithms can estimate both the range and Doppler of a wireless emitter when it uses orthogonal frequency division multiplexing (OFDM). In this paper we are interested to prevent this from happening by an…

Signal Processing · Electrical Eng. & Systems 2023-03-14 Antonios Argyriou

The ultra-secure quantum network leverages quantum cryptography to deliver unsurpassed data transfer security. In principle, the well-known quantum key distribution (QKD) achieves unconditional security, which raises concerns about the…

A GNSS signal authentication concept named semi-assisted authentication is proposed. It is based on the re-encryption and publication of keystream sequences of some milliseconds from an already existing encrypted signal. Some seconds after…

In this paper, we investigate the secrecy performance of radio frequency (RF) eavesdropping for a high altitude platform station (HAPS) aided satellite communication (SatCom) system. More precisely, we propose a new SatCom scheme where a…

Signal Processing · Electrical Eng. & Systems 2021-06-16 Olfa Ben Yahia , Eylem Erdogan , Gunes Karabulut Kurt

The 70-m DSN's Deep Space Station antenna 14 (DSS-14) at Goldstone has recently been outfitted with instrumentation to enable pulsar searching and timing operation. Systems capable of similar operations are undergoing installation at…

Instrumentation and Methods for Astrophysics · Physics 2017-03-07 J. Kocz , W. Majid , L. White , L. Snedeker , M. Franco

Satellite-based quantum repeaters are a promising means to reach global distances in quantum networking due to the polynomial decrease of optical transmission with distance in free space, in contrast to the exponential decrease in optical…

Quantum Physics · Physics 2024-11-15 V. Domínguez Tubío , M. Badás Aldecocea , J. van Dam , A. S. Sørensen , J. Borregaard

NenuFAR (New extension in Nan\c{c}ay upgrading LoFAR) is a new radio telescope developed and built on the site of the Nan\c{c}ay Radio Observatory. It is designed to observe the largely unexplored frequency window from 10 to 85\,MHz,…

Satellite communication networks have attracted widespread attention for seamless network coverage and collaborative computing. In satellite-terrestrial networks, ground users can offload computing tasks to visible satellites that with…

Cryptography and Security · Computer Science 2024-02-21 Wenjun Lan , Kongyang Chen , Yikai Li , Jiannong Cao , Yuvraj Sahni

Source location privacy (SLP) protection is an emerging research topic in wireless sensor networks (WSNs). Because the source location represents the valuable information of the target being monitored and tracked, it is of great practical…

Networking and Internet Architecture · Computer Science 2021-10-01 Yuling Chen , Jing Sun , Yixian Yang , Tao Li , Xinxin Niu , Huiyu Zhou

Wireless sensing technologies can now detect heartbeats using radio frequency and acoustic signals, raising significant privacy concerns. Existing privacy solutions either protect from all sensing systems indiscriminately preventing any…

Cryptography and Security · Computer Science 2025-11-07 Yixuan Gao , Tanvir Ahmed , Zekun Chang , Thijs Roumen , Rajalakshmi Nandakumar

In this paper we present a novel analysis of the feasibility of quantum key distribution between a LEO satellite and a ground station. First of all, we study signal propagation through a turbulent atmosphere for uplinks and downlinks,…

Quantum Physics · Physics 2015-05-13 Cristian Bonato , Andrea Tomaello , Vania Da Deppo , Giampiero Naletto , Paolo Villoresi

Event cameras capture sparse, asynchronous brightness changes which offer high temporal resolution, high dynamic range, low power consumption, and sparse data output. These advantages make them ideal for Space Situational Awareness,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Sami Arja , Alexandre Marcireau , Nicholas Owen Ralph , Saeed Afshar , Gregory Cohen

Satellites carrying sources of entangled photons could establish a global quantum network, enabling private encryption keys between any two points on Earth. Despite numerous proposals, demonstration of space-based quantum systems has been…

The X/$\gamma$ ray polarimetry of the Crab pulsar/nebula is believed to hold crucial information on their emission models. In the past, several missions have shown evidence of polarized emission from the Crab. The significance of these…

Global Positioning System (GPS) is used ubiquitously in a wide variety of applications ranging from navigation and tracking to modern smart grids and communication networks. However, it has been demonstrated that modern GPS receivers are…

Cryptography and Security · Computer Science 2016-03-18 Aanjhan Ranganathan , Hildur Ólafsdóttir , Srdjan Capkun

Recent advancements in satellite technologies and the declining cost of access to space have led to the emergence of large satellite constellations in Low Earth Orbit. However, these constellations often rely on bent-pipe architecture,…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-11-13 Shangguang Wang , Qiyang Zhang , Ruolin Xing , Fei Qi , Mengwei Xu
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