Results 51 to 60 of about 7,335,937 (186)
IET Microwaves, Antennas & PropagationBased on the mechanical regulation mechanism, a super‐low‐frequency (SLF) reconfigurable magnetoelectric (ME) antenna is proposed for underwater frequency‐hopping communication.
Shi‐Yu Wang +4 more
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Slow Frequency Hopping Assisted MC DS-CDMA using Large Area Synchronised Spreading Sequences
, 2005 The family of Multi-Carrier Direct-Sequence CDMA (MC DS- CDMA) systems exhibits numerous attractive properties, which render them attractive candidates for next-generation wireless communications.
Wei, H, Yang, L-L., Hanzo, L.
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New Families of Frequency-Hopping Sequence Sets with a Low-Hit-Zone
EntropyAs a means of spread spectrum communication, frequency-hopping technology has good performance in anti-jamming, multiple-access, security, covert communications, and so on.
Limengnan Zhou, Hanzhou Wu
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Nature Communications, 2020 Designing efficient power and communication electronics remains a challenge. Here, the authors reveal info characteristics of power electronics and propose a modulation strategy based on frequency hopping-differential phase shift keying to enable power ...
Xiangning He +3 more
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Identification of Frequency Hopping Communications
, 2000 A method to detect and characterize a frequency hopping (FH) signal is proposed. The context is Spectrum Surveillance. Hence, no a priori information is available: the parameters of the modulation must be automatically determined. Spread spectrum (SS) modulations are well-known for their low probability of interception (LPI).
Berder, Olivier +2 more
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Joint signal parameter estimation of frequency-hopping communications
IET Communications, 2012 In the problem of the parameter estimation of frequency-hopping (FH) signals, most of existing works can only provide the unauthorised detection of the FH signals or estimate the part of parameters of FH signals, therefore cannot provide sufficient information to demodulate signals for message deciphering applications in a non-cooperative ...
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A Novel Optical Frequency-Hopping System Based on DFB Laser Integrated With an EA Modulator
IEEE Photonics Journal, 2019 A novel optical frequency-hopping system based on distributed feedback laser integrated with an electroabsorption modulator is proposed and demonstrated.
Dechao Ban +9 more
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Mobile peer-to-peer frequency-hopping communications [PDF]
IEEE Military Communications Conference. Proceedings. MILCOM 98 (Cat. No.98CH36201), 2002 The potential performance of mobile peer-to-peer frequency-hopping communication systems in multiple-access networks is studied. Through analysis and simulation, the effects of Rayleigh fading, shadowing, spectral splatter, the number of frequency channels, spatial diversity, and thermal noise are examined.
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Error rate analysis for indoor wireless networks [PDF]
, 1992 An attempt is made to predict the maximum data rates for a typical wireless computer network operating in an indoor frequency-selective environment. To lower the error rates for high-speed data transmission, the impact of techniques such as diversity ...
Nix, AR, Norton, GH, McGeehan, JP
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Research on end hopping for active network confrontation
Tongxin xuebao, 2008 Motivated by frequency hopping for military communication, end hopping tactic was proposed which can mitigate those threats such as DoS and eavesdrop greatly by changing the end information of port, address, timeslot, cryptographic algorithm or even ...
SHI Le-yi1, 2, JIA Chun-fu2
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