Results 81 to 90 of about 22,220 (107)

Acquisition of DS/FH spread spectrum TTC signals in the presence of multitone jamming

IEEE 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 Shengyun, Yang Wenge, Yu Jinfeng, Lu Weitao   +3 more
openaire   +1 more source

Performance analysis of an FFH/BFSK self-normalising receiver under multitone jamming

IEE Proceedings - Communications, 1998
Analytical expressions for bit-error probability are derived for a fast frequency-hopping binary frequency-shift-keying (FFH/BFSK) spread-spectrum (SS) communication system based on Taylor-series expansion. The FFH system employs a soft-decision self-normalising receiver against the worst-case multitone jamming (MTJ) and additive white Gaussian noise ...
K.C. Teh, K.H. Li, A.C. Kot
openaire   +1 more source

Order statistics diversity combining in worst case noise and multitone jamming

MILCOM 91 - Conference record, 2002
A previously known diversity combining method which uses order statistics (OS) has been investigated in both noise and multitone jamming. Based on the results of this investigation, a concatenation of order statistics and normalized envelope detection (NED) is proposed.
openaire   +1 more source

Error probabilities of an FFH/BFSK self-normalizing receiver in a Rician fading channel with multitone jamming

IEEE Transactions on Communications, 2000
We derive the analytical bit-error rate (BER) expressions for a fast frequency-hopped binary frequency-shift keying self-normalizing receiver over a fading channel with the worst-case band multitone jamming (MTJ) and additive white Gaussian noise (AWGN).
Kah Chan Teh, Alex C. Kot, Kwok H. Li
openaire   +2 more sources

Error probability for FH/MDPSK in multitone jamming, fast Rician fading, and Gaussian noise

IEEE Transactions on Communications, 1995
A method is presented for the calculation of M-ary DPSK error probability in partial-band multitone jamming and white gaussian noise. Both unfaded and faded signals and jamming tones may be analyzed by the method. The fading considered is frequency-flat, time selective, Rician fading.
openaire   +1 more source

Performance of frequency hopped MSK signals in multitone jamming and additive white Gaussian noise

IEEE Conference on Military Communications, 2002
Because of advantageous spectral properties, coherent minimum shift keying (MSK) is attractive for electronic counter-counter measures (ECCM) systems where high data throughput is required. These high rate ECCM systems typically use frequency-hopped (FH) spread-spectrum techniques to enhance antijam capabilities. The performance of MSK signals combined
S.W. Doyle, J.W. Marshall
openaire   +1 more source

Performance analysis of a suboptimum fast frequency-hopped/M-ary frequency-shift-keying maximum-likelihood receiver over Rician-fading channels with composite effects of partial-band noise jamming and multitone jamming

IET Communications, 2012
Bit-error rate (BER) expressions of a suboptimum maximum-likelihood (ML) receiver with the composite effect of partial-band noise jamming and multitone jamming are derived for fast frequency-hopped systems employing M-ary frequency-shift-keying ...
Teh, Kah Chan, Le, Ly-Minh-Duy., Li, Kwok Hung   +2 more
exaly   +2 more sources

A moment method for the detection of synchronization probes in worst case noise and multitone jamming

MILCOM 91 - Conference record, 2002
A technique recently devised for diversity combining is used to detect the presence of a burst of continuous wave (CW) synchronization probes in a fast frequency-hopped communication system. Often noise samples from unused channels are used to generate interference statistics to ensure a low false alarm rate.
openaire   +1 more source

Performance analsis of hybrid DS-SFH/MSK spread-spectrum system under multitone jamming

MILCOM 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.
null Zheng Haiou, null Zhang Naitong
openaire   +1 more source

Rejection of Multitone Jamming for FFH/MFSK Spread-Spectrum Systems over Frequency-Selective Rayleigh-Fading Channels

VTC 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 0003, Kah Chan Teh, Kwok Hung Li   +2 more
openaire   +1 more source