Results 81 to 90 of about 511 (153)

Performance analysis of frequency hopped/coherent MPSK in the presence of multitone jamming

open access: closedIEEE Transactions on Communications, 2002
This paper studies the performance of frequency hopped/coherent M-ary PSK signals in the presence of partial-band multitone jamming. The probability density function for the jammed received signal phase is found and utilized in obtaining a probability of error expression.
Ibrahim Ghareeb, Abbas Yongaçoğlu
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Hybrid spread spectrum signal acquisition in the presence of worst case multitone jamming

open access: closedMILCOM 97 MILCOM 97 Proceedings, 2002
The acquisition performance of a hybrid slow frequency hopped direct sequence spread spectrum (SFH/DS SS) communication link in the presence of multitone jamming is analysed. Equations are derived to enable analysis of the optimisation of the jamming strategy. It is shown that the jamming strategy may be optimised by varying the number of tones.
Siew-Kee Loh
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Acquisition of DS/FH spread spectrum TTC signals in the presence of multitone jamming

open access: closedIEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, 2010
The paper investigates the acquisition performance of DS/FH TTC signals in the presence of multi-tone (MT) jamming. A model describing the impact of MT jamming on signal acquisition is proposed and expressions of both detection and false alarm probabilities are mathematically formulated.
Meng Sheng-yun   +3 more
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Rejection of Multitone Jamming for FFH/MFSK Spread-Spectrum Systems over Frequency-Selective Rayleigh-Fading Channels

open access: closedVTC Spring 2008 - IEEE Vehicular Technology Conference, 2008
Analytical expressions of bit-error rate (BER) are derived for a fast-frequency-hopping M-ary frequency-shift- keying (FFH/MFSK) spread-spectrum communication system over frequency-selective Rayleigh-fading channels with multitone jamming (MTJ) and additive white Gaussian noise.
Jiliang Zhang   +2 more
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Performance analsis of hybrid DS-SFH/MSK spread-spectrum system under multitone jamming

open access: closedMILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341), 2003
This paper studies the performance of a hybrid DS-SFH signal in the presence of partial band multitone jamming and AWGN. MSK is employed as FH spread spectrum modulation. The DS spread signal bandwidth is equal to the FH slot spacing. An equation for the BER is developed. Performance is evaluated, assuming a worst case jammer strategy.
Zheng Haiou, Qinyu Zhang
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Multitone jamming rejection of FFH/BFSK spread-spectrum system over fading channels

open access: closedIEEE Transactions on Communications, 1998
Analytical expressions for bit-error probability are derived for a fast frequency-hopping binary frequency-shift keying (FFH/BFSK) spread-spectrum communication system over a fading channel with worst-case band multitone jamming (MTJ) and additive white Gaussian noise (AWGN).
Kah Chan Teh, Alex C. Kot, Kwok Hung Li
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Performance comparison between FH-FDMA and FHMA systems under the worst case band multitone jamming

open access: closedMILCOM 2002. Proceedings, 2003
The bit error rate (BER) performance of a fast frequency-hopped (FH) frequency division multiple access (FDMA) system is evaluated under the environment with band multitone jamming (MTJ), with the clipper receiver and the normalized envelope detection (NED) receiver as combining alternatives.
Yeomin Yoon   +3 more
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Deceiving-Based Anti-Jamming Against Single-Tone and Multitone Reactive Jammers

open access: closedIEEE Transactions on Communications, 2022
Ali Pourranjbar   +2 more
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The performance of LDPC coded FFH/BFSK system over Rician fading channel under multitone jamming

open access: closed2014 International Conference on Information and Communications Technologies (ICT 2014), 2014
Fast frequency hopping (FFH) is a very effective way to combat jamming. In this paper, low density parity check (LDPC) code is employed to enhance the performance of FFH systems over a frequency-nonselective Rician fading channel under band multitone jamming (BMTJ).
Jingke Dai   +3 more
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A Coded DHA FH OFDMA System with a Noncoherent ML Detector under Multitone Jamming

open access: closed, 2012
In what follows an upper bound for the probability of erroneous decoding in a coded DHA FH OFDMA system with a noncoherent ML detector under multitone jamming is introduced.
Dmitry Osipov
openalex   +2 more sources

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