Results 1 to 10 of about 101 (82)

FH/MFSK Performance in Multitone Jamming [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 1985
The performance of frequency-hopped (FH) M -ary frequency-shift keyed (MFSK) signals in partial-band noise has been extensively analyzed in the open literature. This paper extends the previous research to the usually more effective class of multitone jamming. Specifically, this paper will 1) categorize several different multitone jamming strategies; 2)
Yu, Z., Tjhung, T.T., Chai, C.C.
exaly   +5 more sources

Effective power analysis of multi-tone excitation transmitting system

open access: yesThe Journal of Engineering, 2019
Inter-modulation would occur when the transmitting system is under multi-tone excitation; therefore, the non-linear response of power amplifier unit should be considered in the system design.
Maogang Wei   +3 more
doaj   +2 more sources

Development of Multitone Jamming Technique Using DDS Core in FPGA [PDF]

open access: yesThe Journal of Korean Institute of Electromagnetic Engineering and Science, 2011
Communication is very important in warfare. Dispatch riders were used in ancient warfare, but communication system is used in modern warfare, as the advancement of communication equipments. In order to weaken enemy military strength, communication jamming signal disrupts enemy communication systems.
Sang-Geun Hong   +2 more
exaly   +2 more sources

Performance analysis of FFH/MFSK receivers with self-normalization combining in the presence of multitone jamming [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2002
An analytical study is presented for the performance of fast frequency-hopping (FFH) self-normalized orthogonal M-ary frequency-shift-keyed (MFSK) noncoherent receivers in the presence of multitone jamming. The multiple equal-power jamming tones are assumed to correspond to some of the possible FFH/M-ary orthogonal signaling tones.
Jiangzhou Wang
exaly   +4 more sources

Performance analysis of a subset‐based coherent FFH system with spatial modulation in Rayleigh fading channels with multitone jamming

open access: yesIET Communications, 2016
Conventionally, fast frequency hopping (FFH) is regarded as a non‐coherent system, which has inevitable shortcomings in low spectral efficiency. To achieve a high spectral efficiency while maintaining a favourable bit error ratio (BER) performance in FFH systems, in this study, the authors extend their previously proposed subset‐based coherent FFH (S ...
Gang Wu
exaly   +2 more sources

Efficient Open-Set Recognition for Interference Signals Based on Convolutional Prototype Learning

open access: yesApplied Sciences, 2022
Interference classification plays an important role in anti-jamming communication. Although the existing interference signal recognition methods based on deep learning have a higher accuracy than traditional methods, these have poor robustness while ...
Xiangwei Chen   +5 more
doaj   +1 more source

On Maximum-Likelihood Detection for Non-coherent FH/BFSK in Multitone Jamming

open access: yesJournal of Computers, 2006
We derive the optimum maximum-likelihood (ML) non-coherent detector for FH/BFSK systems in the environment of multitone jamming and additive white Gaussian noise with no aid of jamming state indication and the resultant signal-plus- jammer tone, which, however, were required in K. C. Teh’s previous work [1].
openaire   +3 more sources

Implementasi Hybrid DS/FH Spread Spectrum menggunakan DSK TMS302C6416T

open access: yesJurnal Teknik ITS, 2014
Spread spectrum adalah sebuah metode komunikasi dimana semua sinyal komunikasi disebar di seluruh spektrum frekuensi yang tersedia. Sinyal informasi akan ditebarkan pada seluruh pita frekuensi yang disediakan dan dilakukan secara acak.
Aji Wisnu Laksita   +2 more
doaj  

Kajian Implementasi Standar Long-Term Evolution (LTE) pada Sistem Komunikasi Taktis Militer

open access: yesJurnal Teknik ITS, 2012
Sistem komunikasi taktis memungkinkan banyak pengguna dengan mobilitas tinggi, memiliki kemampuan network recovery dan network entry yang baik, serta diperkuat dengan sistem keamanan transmisi yang tahan terhadap jamming.
Aris Pradana   +2 more
doaj  

Implementasi Direct Sequence Spread Spectrum pada DSK TMS320C6416T

open access: yesJurnal Teknik ITS, 2014
Spread spectrum merupakan teknik pengiriman sinyal yang tahan terhadap gangguan dan mempunyai tingkat keamanan informasi yang cukup tinggi pada saat pengiriman. Salah satu teknik spread spectrum yang dikembangkan adalah direct sequence.
Nanang Arif Haryadi   +2 more
doaj  

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