Results 251 to 260 of about 5,050 (279)

Anti-jamming on the OR-channel

Proceedings of 1994 IEEE International Symposium on Information Theory, 2002
We propose a frequency hopping scheme with M-ary frequency shift keying applied to the OR-channel and give its error and erasure probabilities. Asymptotically, the bit error probability is bounded away from zero whereas it polynomially tends to zero for our previously proposed generalized scheme. >
openaire   +2 more sources

A self-coherence anti-jamming GPS receiver

IEEE Transactions on Signal Processing, 2005
In this correspondence, we present a self-coherence anti-jamming Global Positioning System (GPS) receiver that relies on the unique structure of the coarse/acquisition (C/A) code of the GPS signals. Since the C/A-code is repeated 20 times within each navigation symbol, the GPS signal exhibits strong self-coherence between chip-rate samples separated by
Sun, Wei., Amin, Moeness G.
openaire   +2 more sources

Optimal anti-jamming strategy in sensor networks

2012 IEEE International Conference on Communications (ICC), 2012
Wireless sensor networks have been widely applied to various application domains such as environmental monitoring and surveillance. Because of reliance on the open transmission media, a sensor network may suffer from radio jamming attacks, which is easy to launch but difficult to defend.
Xiangpeng Li, Yanmin Zhu, Bo Li
openaire   +2 more sources

Anti-Jamming Transmitter Independent Radar Networks

2008 International Conference on Signal Processing, Communications and Networking, 2008
A transmitter independent receiver network (TIRN) is a network of radar receivers that operates in an area without cooperating with a particular radar transmitter, but rather using transmitters of opportunity (TOA) in order to detect and track airborne, ballistic or surface targets.
Nikos J. Farsaris, P. Stavroulakis, Thomas D. Xenos   +2 more
openaire   +2 more sources

A space-frequency anti-jamming algorithm for GPS

2007 IEEE Antennas and Propagation Society International Symposium, 2007
In this paper, we proposed a space-frequency GPS anti-jamming technique with constant beamwidth. The proposed method sets up a new data model by Fourier transformation. On the basis of the new model, the optimal output SINR can be obtained by using Capon beamforming similar to the only spatial domain. Also, in order to obtain the distortless GPS signal,
Dan Lu, Renbiao Wu, Zhigang Su, Wei Huang   +3 more
openaire   +2 more sources

Anti-jamming Performance Analysis of FRFT-OFDM

2010 First International Conference on Pervasive Computing, Signal Processing and Applications, 2010
The OFDM system based on the fractional Fourier transform (FRFT-OFDM) is robust against fast-fading channel. However, the performance of anti-jamming is not analyzed. In this paper, the anti-jamming performance of the FRFT-OFDM system under multitone jamming (MTJ) and linear frequency modulated (LFM) jamming is evaluated.
Qian Yang, Jia Ni, Ran Tao
openaire   +2 more sources

Anti-Jamming Radiometric Automatic Tracking System

2021 XXIV International Conference on Soft Computing and Measurements (SCM), 2021
The paper studies an anti-jamming system for automatic tracking of single vehicles. Tracking is implemented by vehicles radiation in the millimeter wavelength range. Authors synthesized tracking using statistically optimal algorithm for joint filtering of continuous and discrete Markov sequences.
Vladimir E. Mager, Elena N. Desyatirikova, Vladimir I. Lutin   +2 more
openaire   +2 more sources

Dynamic Adaptive Anti-Jamming via Controlled Mobility

IEEE Transactions on Wireless Communications, 2013
In this paper, the mobility of network nodes is explored as a new promising approach for jamming defense. To fulfill it, properly designed node motion that can intelligently adapt to the jammer's action is crucial. In our study, anti-jamming mobility control is investigated in the context of the single and multiple commodity flow problems, in the ...
Huaiyu Dai, Xiaofan He, Peng Ning
openaire   +3 more sources

Geographic-Based Satellite Anti-Jam Strategies [PDF]

28th AIAA International Communications Satellite Systems Conference (ICSSC-2010), 2010
The cancellation of the transformational Satellite (TSAT) program has created interest in commercial satellite use for military purposes. A key requirement difference between these two is the need for anti-jam (AJ) protection in military systems.
J. Dimarogonas, C. Cerasoli
openaire   +1 more source

Naval radar anti-jamming technique

Journal of the Institution of Electrical Engineers - Part IIIA: Radiolocation, 1946
The use of radar in the 1939-45 War was quickly followed by the development of methods of "jamming" radar equipments in order to reduce their operational value. Specimen photographs are shown in the paper of the appearances of various types of jamming signal on radar displays.
openaire   +2 more sources