Results 291 to 300 of about 337,357 (338)

Feasibility study of LTE signal as a new illuminators of opportunity for passive radar applications [PDF]

open access: yes, 2013
Recently, there has been an evolution of mobile networks towards the fourth generation radio wireless communications (4G) as LTE (Long Term Evolution). In this paper, the feasibility of using LTE-based passive radar is investigated to take advantage of ...
Raja Syamsul Azmir Raja Abdullah   +1 more
exaly   +2 more sources

Spectrum opportunity detection with weak and correlated signals

2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2012
We present a novel score detector for temporal spectrum opportunity detection in cognitive radio by exploiting the differences in both energy and correlation of the empty band and the occupied band. Motivated by the challenge of detecting a weak primary user's signal without precise knowledge of the signal, where the conventional energy detector faces ...
Yao Xie, David Siegmund
openaire   +1 more source

The Significant Gains From Optimally Processed Multiple Signals of Opportunity and Multiple Receive Stations in Passive Radar

IEEE Signal Processing Letters, 2014
Target position and velocity estimation using a passive radar with multiple signals of opportunity and multiple receive stations is investigated. The maximum likelihood (ML) estimate of the unknown position and velocity vector of a target is presented ...
Qian He, Rick S. Blum
semanticscholar   +1 more source

Pervasive broadband: opportunities for signal processing

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2003
Summary form only given. With the emergence of broadband telecommunications, we are moving in well-measured steps from nearly universal telephony to increasingly pervasive multimedia services. The author describes some of the fundamental opportunities that this context presents to the practitioners of advanced signal processing.
openaire   +1 more source

Ocean altimetry using wideband signals of opportunity

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
Coastal altimetry plays a prominent role in measuring the total water-level envelope directly, and is one of the key measurements required by storm surge applications and services. It can also provide important information about the wave field, leading to development of more realistic wave models and therefore improving forecasts of wave setup and ...
Rashmi Shah   +8 more
openaire   +1 more source

Signal to symbol converters: Overview, opportunities and challenges

2013 47th Annual Conference on Information Sciences and Systems (CISS), 2013
Signal to symbol converters (SSCs) are an emerging class of integrated microsystems aimed at an informed and intelligent conversion of signals to symbols. We present an architecture overview for signal to symbol converters, discuss related prior work and outline future opportunities and challenges.
Andreas G. Andreou   +2 more
openaire   +1 more source

Measurement of atmospheric refractivity using signals of opportunity

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
High-resolution numerical weather models require fine-scale (1–5 km) measurements of moisture fields over large areas (>20,000 km2). Existing techniques such as GPS are not able to meet these requirements. This paper discusses the feasibility of a novel method for measuring atmospheric refractivity by the opportunistic reception and processing of ...
Robert J. Watson   +3 more
openaire   +1 more source

Signal Encryption Opportunities for Photonic Networks

OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF), 2020
We discuss signal encryption opportunities in photonic networks (PNs). In particular, we use computer simulations to show that dynamic keys lead to diffusion when two phase-encoded signals are shuffled and transmitted through PNs.
Marcelo Luís Francisco Abbade   +6 more
openaire   +1 more source

Navigation with Multi-Constellation LEO Satellite Signals of Opportunity: Starlink, OneWeb, Orbcomm, and Iridium

2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2023
Z. Kassas   +7 more
semanticscholar   +1 more source

Opportunities and challenges in signal processing and analysis

2007
This paper provides an overview of the author's perspective on the numerous challenges and opportunities in signal and image processing. In particular we focus for the most part on problems and critical issues for problems of statistical processing of spatially-distributed data.
openaire   +1 more source

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