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Journal articles on the topic 'IMPULSIVE MODULATION'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Wallace, John F., Joseph P. Newman, and Jo-Anne Bachorowski. "Failures of response modulation: Impulsive behavior in anxious and impulsive individuals." Journal of Research in Personality 25, no. 1 (1991): 23–44. http://dx.doi.org/10.1016/0092-6566(91)90003-9.

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2

Miller, Lisa A., Robert L. Collins, and Thomas A. Kent. "Language and the Modulation of Impulsive Aggression." Journal of Neuropsychiatry and Clinical Neurosciences 20, no. 3 (2008): 261–73. http://dx.doi.org/10.1176/jnp.2008.20.3.261.

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3

Ogiwara, Haruo, and Ryuichi Ootaki. "Trellis coded modulation for additive impulsive noise." Electronics and Communications in Japan (Part III: Fundamental Electronic Science) 73, no. 12 (1990): 71–78. http://dx.doi.org/10.1002/ecjc.4430731208.

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4

Mahmudul, Hasan, Mumtahina Tuba Sadia, Janefar Sumaiya, Juberi Hridi, and Rahimi Jakaria. "An Orthogonal Frequency Division Multiplexing and Universal Filtered Multi-Carrier System with Degraded Impulsive Noise Channel Analytical Bit Error Rate Performance Assessment." Advancement of Signal Processing and its Applications 6, no. 1 (2023): 8–16. https://doi.org/10.5281/zenodo.7664148.

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<em>In this era of IoT and Industry 4.0, the evolving ubiquitous networking infrastructure includes the WSN and PLC with 5G mobile communication technology to extend the network coverage to remote locations. In such heterogeneous integration, the end-to-end channel noise cannot be properly characterized by AWGN Noise, since the WSN and PLC networks are usually affected by non-white Gaussian noise like Impulsive noise. No studies have been conducted on how impulsive noise affects UFMC performance. In order to assess the BER performance of OFDM and UFMC multicarrier modulation schemes in the Ray

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Miranda, Igor D. dos S., and Antonio C. de C. Lima. "Impulsive Sound Detection Directly in Sigma-Delta Domain." Archives of Acoustics 42, no. 2 (2017): 255–61. http://dx.doi.org/10.1515/aoa-2017-0028.

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Abstract Recent implementations of Sigma-Delta (ΣΔ) converters have achieved low cost, low power consumption, and high integration while maintaining resolution as high as in Nyquist-rate converters. However, its usage implies demodulating the source signal delivered from ΣΔ modulation to Pulse-Code Modulation (PCM) on a pre-processing stage. This work proposes an algorithm based on Discrete Cosine Transform for impulsive signal detection to be applied directly on a modulated ΣΔ bitstream, targeting to reduce computational cost in acoustic event detection applications such as gunshot recognitio

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Hamlili, Heyem, Samir Kameche та Abdelhafid Abdelmalek. "SαS noise suppression for OFDM wireless communication in rayleight channel". International Journal of Electrical and Computer Engineering (IJECE) 10, № 2 (2020): 2003. http://dx.doi.org/10.11591/ijece.v10i2.pp2003-2010.

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Orthogonal frequency division multiplexing (OFDM) is a form of multi-carrier transmission technique widely used in the modern wireless network to achieve high-speed data transmission with good spectral efficiency. However, in impulsive noise environement BER performances of these systems, originally designed for a Gaussian noise model, are much degraded. In this paper, a new symmetric-alpha-stable (SαS) noise suppression technique based conjointly on adaptive modulation, convolutional coding (AMC) and Recursive Least Square (RLS) filtering is presented. The proposed scheme is applied on OFDM s

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Heyem, Hamlili, Kameche Samir та Abdelmalek Abdelhafid. "SαS noise suppression for OFDM wireless communication in rayleight channel". International Journal of Electrical and Computer Engineering (IJECE) 10, № 2 (2020): 2003–10. https://doi.org/10.11591/ijece.v10i2.pp2003-2010.

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Orthogonal frequency division multiplexing (OFDM) is a form of multicarrier transmission technique widely used in the modern wireless network to achieve high-speed data transmission with good spectral efficiency. However, in impulsive noise environement BER performances of these systems, originally designed for a Gaussian noise model, are much degraded. In this paper, a new symmetric-alpha-stable (SαS) noise suppression technique based conjointly on adaptive modulation, convolutional coding (AMC) and Recursive Least Square (RLS) filtering is presented. The proposed scheme is applied on O

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Varheenmaa, Markus, Jan Wikgren, Owen Thomas, Aaron Kortteenniemi, Anna-Katharine Brem, and Soili M. Lehto. "Modulation of impulsive behaviours using transcranial random noise stimulation." Brain Stimulation 15, no. 1 (2022): 32–34. http://dx.doi.org/10.1016/j.brs.2021.11.002.

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9

Vishnu, Hari, and Mandar Chitre. "Robust Estimation of Modulation Frequency in Impulsive Acoustic Data." IEEE Transactions on Aerospace and Electronic Systems 53, no. 4 (2017): 1932–46. http://dx.doi.org/10.1109/taes.2017.2677621.

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10

Mostacciuolo, Elisa, Stephan Trenn, and Francesco Vasca. "Averaging for switched impulsive systems with pulse width modulation." Automatica 160 (February 2024): 111447. http://dx.doi.org/10.1016/j.automatica.2023.111447.

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11

Huang, Yunxia, and Shuwu Xu. "Controlling population of the molecular rotational state and the alignment theoretically by tailored femtosecond laser pulse." Royal Society Open Science 5, no. 1 (2018): 171502. http://dx.doi.org/10.1098/rsos.171502.

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We demonstrate that the population of the molecular rotational state through a stimulated impulsive Raman excitation can be controlled by tailoring the femtosecond laser pulse with a V-style phase modulation. The results show that, by precisely manipulating the modulation parameters, both the odd and even populations of the molecular rotational state can be completely suppressed or reconstructed. Meanwhile, the relative excitation between the odd and even populations can be obtained. Finally, we show that field-free molecular alignment can be controlled due to the modulation of the molecular r

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12

Kim, Bokyeong, Sehyoun Yoon, Ryuichi Nakajima, et al. "Dopamine D2 receptor-mediated circuit from the central amygdala to the bed nucleus of the stria terminalis regulates impulsive behavior." Proceedings of the National Academy of Sciences 115, no. 45 (2018): E10730—E10739. http://dx.doi.org/10.1073/pnas.1811664115.

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Impulsivity is closely associated with addictive disorders, and changes in the brain dopamine system have been proposed to affect impulse control in reward-related behaviors. However, the central neural pathways through which the dopamine system controls impulsive behavior are still unclear. We found that the absence of the D2 dopamine receptor (D2R) increased impulsive behavior in mice, whereas restoration of D2R expression specifically in the central amygdala (CeA) of D2R knockout mice (Drd2−/−)normalized their enhanced impulsivity. Inhibitory synaptic output from D2R-expressing neurons in t

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13

Cai, Jingjing, Fengming Gan, Xianghai Cao, Wei Liu, and Peng Li. "Radar Intra–Pulse Signal Modulation Classification with Contrastive Learning." Remote Sensing 14, no. 22 (2022): 5728. http://dx.doi.org/10.3390/rs14225728.

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The existing research on deep learning for radar signal intra–pulse modulation classification is mainly based on supervised leaning techniques, which performance mainly relies on a large number of labeled samples. To overcome this limitation, a self–supervised leaning framework, contrastive learning (CL), combined with the convolutional neural network (CNN) and focal loss function is proposed, called CL––CNN. A two–stage training strategy is adopted by CL–CNN. In the first stage, the model is pretrained using abundant unlabeled time–frequency images, and data augmentation is used to introduce

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14

Liu, Mingxuan, Yiping Shen, and Yuandong Xu. "A Resonance-Identification-Guided Autogram for the Fault Diagnosis of Rolling Element Bearings." Machines 13, no. 3 (2025): 169. https://doi.org/10.3390/machines13030169.

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Rolling element bearings are key components for reducing friction and supporting rotors. Harsh working conditions contribute to the wear of bearings and consequent breakdown of machines, which leads to economic losses and even catastrophic accidents. Faulty impulses from bearings can excite resonance behavior in a system and produce modulation phenomena. Fault characteristics in modulated signals can be extracted using demodulation analysis methods, significantly improving the reliability and effectiveness of the fault diagnosis of rolling bearings. Optimal demodulation frequency band selectio

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15

Wang, Haiying, Qunying Zhang, Wenhai Cheng, Jiaming Dong, and Xiaojun Liu. "A Novel Parameter Estimation Method Based on Piecewise Nonlinear Amplitude Transform for the LFM Signal in Impulsive Noise." Electronics 12, no. 11 (2023): 2530. http://dx.doi.org/10.3390/electronics12112530.

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In a complex electromagnetic environment, any noise present generally exhibits strong impulsive characteristics. The performance of existing parameter estimation methods carried out in Gaussian white noise for the linear frequency modulation (LFM) signal degrades or even fails under impulsive noise. This paper proposes a novel parameter estimation method to address this problem. Firstly, the properties of the piecewise nonlinear amplitude transform (PNAT) are derived. This manuscript verifies that the PNAT can retain phase information of the LFM signal while suppressing the impulsive noise. Su

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Masihzadeh, Omid, Mark Baertschy, and Randy A. Bartels. "Optimal single-pulse excitation of rotational impulsive molecular phase modulation." Optics Express 14, no. 6 (2006): 2520. http://dx.doi.org/10.1364/oe.14.002520.

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17

Nguyen, Ha H., and Trung Q. Bui. "Bit-Interleaved Coded Modulation With Iterative Decoding in Impulsive Noise." IEEE Transactions on Power Delivery 22, no. 1 (2007): 151–60. http://dx.doi.org/10.1109/tpwrd.2006.881602.

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18

Ma, Jitong, and Tianshuang Qiu. "Automatic Modulation Classification Using Cyclic Correntropy Spectrum in Impulsive Noise." IEEE Wireless Communications Letters 8, no. 2 (2019): 440–43. http://dx.doi.org/10.1109/lwc.2018.2875001.

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19

Chang, Chih-Hua, and Po-Wu Gean. "Role of ventral hippocampus in the modulation of impulsive aggression." Proceedings for Annual Meeting of The Japanese Pharmacological Society WCP2018 (2018): PO3–1–40. http://dx.doi.org/10.1254/jpssuppl.wcp2018.0_po3-1-40.

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20

Churilov, Alexander N., Alexander Medvedev, and Zhanybai T. Zhusubaliyev. "Discrete-Time Mapping for an Impulsive Goodwin Oscillator with Three Delays." International Journal of Bifurcation and Chaos 27, no. 12 (2017): 1750182. http://dx.doi.org/10.1142/s0218127417501826.

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A popular biomathematics model of the Goodwin oscillator has been previously generalized to a more biologically plausible construct by introducing three time delays to portray the transport phenomena arising due to the spatial distribution of the model states. The present paper addresses a similar conversion of an impulsive version of the Goodwin oscillator that has found application in mathematical modeling, e.g. in endocrine systems with pulsatile hormone secretion. While the cascade structure of the linear continuous part pertinent to the Goodwin oscillator is preserved in the impulsive Goo

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21

Lin, Jianbo, Han Zhang, Yunfei Li, and Zhaohui Du. "An Adaptive Multi-D-Norm-Driven Sparse Unfolding Deconvolutional Network for Bearing Fault Diagnosis." Sensors 24, no. 8 (2024): 2624. http://dx.doi.org/10.3390/s24082624.

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Impulsive blind deconvolution (IBD) is a popular method to recover impulsive sources for bearing fault diagnosis. Its underpinnings are in the design of objective functions based on prior knowledge of impulsive sources and a transfer function to describe transmission path influences. However, popular objective functions cannot retain waveform impulsiveness and periodicity cyclostationarity simultaneously, and the single convolution operation of IBD methods is insufficient to describe transmission paths composed of multiple linear and nonlinear units. Inspired by the MaxPooling period modulatio

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22

Pattij, Tommy, Dustin Schetters, and Anton N. M. Schoffelmeer. "Dopaminergic modulation of impulsive decision making in the rat insular cortex." Behavioural Brain Research 270 (August 2014): 118–24. http://dx.doi.org/10.1016/j.bbr.2014.05.010.

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23

Camara, Tales V. R. O., Arthur D. L. Lima, Bruno M. M. Lima, Aluisio I. R. Fontes, Allan De M. Martins, and Luiz F. Q. Silveira. "Automatic Modulation Classification Architectures Based on Cyclostationary Features in Impulsive Environments." IEEE Access 7 (2019): 138512–27. http://dx.doi.org/10.1109/access.2019.2943300.

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24

Song, Youngbum, Sang-Young Park, Geuk-Nam Kim, and Dong-Gu Kim. "Design of Orbit Controls for a Multiple CubeSat Mission Using Drift Rate Modulation." Aerospace 8, no. 11 (2021): 323. http://dx.doi.org/10.3390/aerospace8110323.

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For the low-cost improvement of laser communication, which is critical for various applications such as surveillance systems, a study was conducted on relative distance control based on orbital drift rate modulations for multiple CubeSats during formation flying. The VISION mission covered in this paper comprises two CubeSats to demonstrate laser communication technology in space. During the mission, the deputy CubeSat changes the relative distance to execute mission objectives within various scenarios. Impulsive controls decrease, maintain, and increase the relative distance between the CubeS

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25

Mahmudul, Hasan, Musarrat Zarin, Mumtahina Tuba Sadia, Juberi Hridi, and Rahimi Jakaria. "Performance Evaluation of OFDM vs FBMC in Impulsive Noise Channel." Journal of Optoelectronics and Communication 5, no. 1 (2023): 18–25. https://doi.org/10.5281/zenodo.7694933.

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<em>The fifth-generation wireless mobile communication technology, which has already been released, represents a new progression. But for those who study and develop mobile communication technology, greatly increased data rates and the required mobility of new wireless applications have become difficult challenges.</em> <em>Great data rates, huge channel capacities, high quality, and a low Peak-to-Average Power Ratio are requirements for 5G wireless networks (PAPR). For 5G wireless communication networks, the Filter Bank Multicarrier (FBMC) technique is viewed as a potential solution.   T

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26

Lv, Xin-Rong, Youming Li, and Yu-Cheng He. "Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers." Mathematical Problems in Engineering 2018 (June 7, 2018): 1–11. http://dx.doi.org/10.1155/2018/4968682.

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An efficient impulsive noise estimation algorithm based on alternating direction method of multipliers (ADMM) is proposed for OFDM systems using quadrature amplitude modulation (QAM). Firstly, we adopt the compressed sensing (CS) method based on the l1-norm optimization to estimate impulsive noise. Instead of the conventional methods that exploit only the received signal in null tones as constraint, we add the received signal of data tones and QAM constellations as constraints. Then a relaxation approach is introduced to convert the discrete constellations to the convex box constraints. After

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27

Shelesh, Kumar Jain* Rekha Gupta. "IMPULSIVE NOISE CANCELLATION IN SINGLE-CARRIER FDMA TRANSMISSION USING DIFFERENT MODULATION SCHEMES." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 2 (2017): 35–42. https://doi.org/10.5281/zenodo.266751.

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Communication signals over power-line channels can be affected greatly by impulsive noise (IN). The effect of this noise is commonly reduced with the application of a nonlinear preprocessor at the receiver such as blanking or clipping that blanks and/or clips the received signal when it exceeds a certain threshold. Erroneous blanking/clipping of the unaffected signals can lead to significant performance degradations. It is found that determining the optimal blanking/clipping threshold is the key for achieving best performance. In contract to these studies, we show in this paper that the perfor

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28

Wodecki, Jacek, and Anna Michalak. "Fault-related impulsive component detection for vibration-based diagnostics in the presence of random impulsive noise." IOP Conference Series: Earth and Environmental Science 942, no. 1 (2021): 012016. http://dx.doi.org/10.1088/1755-1315/942/1/012016.

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Abstract In this paper, the authors propose the methodology for vibration-based diagnostics towards local damage detection in rolling element bearings in the presence of non-Gaussian noise. In real-life cases, the main problem making the analysis difficult is the non-Gaussianity of the high-energy noise present in the operational environment. Because of this fact, popular impulsiveness-related detection techniques cannot be used. In the presented article, a real-life data measured in an industrial scenario will be presented and a proposition of an approach to cyclic component extraction will b

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Riganello, Francesco, Martina Vatrano, Paolo Tonin, Antonio Cerasa, and Maria Daniela Cortese. "Heart Rate Complexity and Autonomic Modulation Are Associated with Psychological Response Inhibition in Healthy Subjects." Entropy 25, no. 1 (2023): 152. http://dx.doi.org/10.3390/e25010152.

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Background: the ability to suppress/regulate impulsive reactions has been identified as common factor underlying the performance in all executive function tasks. We analyzed the HRV signals (power of high (HF) and low (LF) frequency, Sample Entropy (SampEn), and Complexity Index (CI)) during the execution of cognitive tests to assess flexibility, inhibition abilities, and rule learning. Methods: we enrolled thirty-six healthy subjects, recording five minutes of resting state and two tasks of increasing complexity based on 220 visual stimuli with 12 × 12 cm red and white squares on a black back

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Wen, Jian Ming, and Qi Feng. "Two-Stage Stochastic Model on Rattling Vibration with Amplitude Modulation." Shock and Vibration 11, no. 5-6 (2004): 693–702. http://dx.doi.org/10.1155/2004/685892.

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Rattling vibration in gear boxes of automobiles is an annoying problem. It may be generated in those gear wheels of a car transmission system, which are unloaded. In recent years, very general models have been developed to analyze the rattling phenomenon. One of them, in consideration of plays being the consequence of tolerances, backlashes and others, is modeled as an impulsive system that consists of some unloaded gears being able to rattle. Modern research has shown that the chaotic vibration may occur on a rattling system. In this paper, a stochastic modulated rattling system with two-stag

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Silva, Hugerles S., Marcelo S. Alencar, Wamberto J. L. Queiroz, Danilo B. T. Almeida, and Francisco Madeiro. "Closed-Form Expression for the Bit Error Probability of the M-QAM for a Channel Subjected to Impulsive Noise and Nakagami Fading." Wireless Communications and Mobile Computing 2018 (October 21, 2018): 1–9. http://dx.doi.org/10.1155/2018/5934267.

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In this paper, new exact expressions for evaluating the bit error probability (BEP) of the M-ary quadrature amplitude modulation scheme (M-QAM) for a channel model characterized by double gated additive white Gaussian noise (G2AWGN) and Nakagami fading are presented. The derivation of the BEP is performed considering a method in which the multiplicative fading is transformed in an additive noise R obtained by dividing the received signal by the estimated fading envelope. In addition, the probability density function (PDF) and cumulative density function (CDF) of the random variable R that repr

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32

Lee, Royce J., Andrew Gill, Bing Chen, Michael McCloskey, and Emil F. Coccaro. "Modulation of Central Serotonin Affects Emotional Information Processing in Impulsive Aggressive Personality Disorder." Journal of Clinical Psychopharmacology 32, no. 3 (2012): 329–35. http://dx.doi.org/10.1097/jcp.0b013e31825368b7.

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33

Lin, Jing, Tarkesh Pande, Il Han Kim, Anuj Batra, and Brian L. Evans. "Time-Frequency Modulation Diversity to Combat Periodic Impulsive Noise in Narrowband Powerline Communications." IEEE Transactions on Communications 63, no. 5 (2015): 1837–49. http://dx.doi.org/10.1109/tcomm.2015.2411601.

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34

Naumenko, A. V., N. A. Loiko, S. I. Turovets, P. S. Spencer, and K. A. Shore. "Chaos Control in External Cavity Laser Diodes using Electronic Impulsive Delayed Feedback." International Journal of Bifurcation and Chaos 08, no. 09 (1998): 1791–99. http://dx.doi.org/10.1142/s0218127498001509.

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In this paper an examination is made of the performance characteristics of a scheme of chaos control using optimised impulsive delayed feedback. The scheme is applied in a model of external cavity laser diodes giving attention to the application of the feedback via modulation of the laser drive current taking into account practical constraints arising from technical delay and the frequency in application of the control signal. It is demonstrated that by use of a so-called ∊-ball condition chaos control is achievable in the fully developed coherence collapse regime without preliminary targeting

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Skandali, N., J. Rowe, J. Deakin, T. Robbins, and B. Sahakian. "Serotonergic modulation of cognition; An acute challenge." European Psychiatry 41, S1 (2017): S350. http://dx.doi.org/10.1016/j.eurpsy.2017.02.326.

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AbstractSerotonin is well known to affect the multifaceted construct of impulsivity. Lowering brain serotonin levels is shown to increase impulsive choice in delay-discounting tasks (1) but improves response inhibition in stop-signal paradigms. (2) Administration of the antidepressant citalopram in healthy people increases tendency to perform go choices in a Go/No-Go task independent of outcome valence (3). It is rather unclear thought how serotonergic neurotransmission affects several aspects of cognition. We administered a single dose of 20 mg escitalopram, a selective serotonin reuptake inh

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Li, Dong, Mingyu Ge, Marie Dominique та ін. "Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyα, Hard X-Ray, and Radio Emissions Simultaneously". Astrophysical Journal 921, № 2 (2021): 179. http://dx.doi.org/10.3847/1538-4357/ac1c05.

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Abstract Quasi-periodic pulsations (QPPs), which usually appear as temporal pulsations of the total flux, are frequently detected in the light curves of solar/stellar flares. In this study, we present the investigation of nonstationary QPPs with multiple periods during the impulsive phase of a powerful flare on 2017 September 6, which were simultaneously measured by the Hard X-ray Modulation Telescope (Insight-HXMT), as well as the ground-based BLENSW. The multiple periods, detected by applying a wavelet transform and Lomb–Scargle periodogram to the detrended light curves, are found to be ∼20–

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Marwa, Jaleel Mohsin, Kadhim Saad Wasan, J. Hamza Bashar, and A. Jabbar Waheb. "Performance analysis of image transmission with various channel conditions/modulation techniques." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 3 (2020): 1158–68. https://doi.org/10.12928/TELKOMNIKA.v18i3.14172.

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This paper investigates the impact of different modulation techniques for digital communication systems that employ quadrature phase shift keying (QPSK) and quadrature amplitude modulation (16-QAM and 64-QAM) to transmit images over AWGN and Rayleigh fading channels for the cellular mobile networks. In the further steps, wiener and median filters has been adopted to the simulation are used at the receiver side to remove the impulsive noise present in the received image. This work is performed to evaluate the transmission of two dimensional (2D) gray-scale and color-scale (RGB) images with diff

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Gong, Tingkai, Yanbin Yuan, Xiaohui Yuan, Xiyang Wang, Xiaotao Wu, and Yuanzheng Li. "Iterative asymmetric multiscale morphology and its application to fault detection for rolling element bearing." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 2 (2017): 316–30. http://dx.doi.org/10.1177/0954406216679690.

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The impulsive signals produced by bearing faults are usually modulated in amplitude. Multiscale morphology is suited to demodulate the signal because of its powerful demodulation ability. However, when the structuring element scales are increased gradually, the multiscale morphology method using closing and/or opening allows the low-amplitude impulses to be eliminated. Therefore, iterative asymmetric multiscale morphology is explored in this paper to handle the problem. Firstly, a modified difference filter is developed based on closing and opening to conduct iterative morphology operation, an

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Tseng, Andy, Emmanuel Felix, Nidia Espinoza Serrano, and Arbi Nazarian. "GONADAL HORMONE MODULATION OF PAIN-INDUCED IMPULSIVE CHOICE AND THE EFFECTS OF MORPHINE IN RATS." IBRO Neuroscience Reports 15 (October 2023): S875—S876. http://dx.doi.org/10.1016/j.ibneur.2023.08.1826.

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OTSUJI, TAIICHI, TAKUYA NISHIMURA, YUKI TSUDA, YAHYA MOUBARAK MEZIANI, TETSUYA SUEMITSU, and EIICHI SANO. "EMISSION AND INTENSITY MODULATION OF TERAHERTZ ELECTROMAGNETIC RADIATION UTILIZING 2-DIMENSIONAL PLASMONS IN DUAL-GRATING-GATE HEMT'S." International Journal of High Speed Electronics and Systems 19, no. 01 (2009): 33–53. http://dx.doi.org/10.1142/s0129156409006072.

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Two dimensional plasmons in submicron transistors have attracted much attention due to their nature of promoting emission/detection of electromagnetic radiation in the terahertz range. We have recently proposed and fabricated a highly efficient, broadband plasmon-resonant terahertz emitter. The device incorporates doubly interdigitated grating gates and a vertical cavity into a high electron mobility transistor. The device operates in various modes: (1) DC-current-driven self oscillation, (2) CW-laser excited terahertz emission, (3) two-photon injection-locked difference-frequency terahertz em

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41

Wen, Jiawei, Zhe Ouyang, Donghu Nie, and Cong Ren. "Fast Parameter Estimation of Linear Frequency Modulation Signals in Marine Environments Based on Gradient Optimization Strategy." Journal of Marine Science and Engineering 12, no. 12 (2024): 2195. https://doi.org/10.3390/jmse12122195.

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Multi-buoy sonar systems achieve target localization by receiving broadband Linear Frequency Modulation signals emitted from the transmitter. Accurate estimations of the parameters of Linear Frequency Modulation signals significantly enhance the localization accuracy. Linear Frequency Modulation signals can be focused into the fractional domain through Fractional Fourier Transform, but this increases the computational complexity. In marine environments, the low signal-to-noise ratio and multipath effects degrade the parameter estimation accuracy further. To address these issues, this paper pro

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GIESBRECHT, J. "AN EMPIRICAL STUDY OF THE PROBABILITY DENSITY FUNCTION OF HF NOISE (PART II)." Fluctuation and Noise Letters 08, no. 03n04 (2008): L305—L314. http://dx.doi.org/10.1142/s0219477508005008.

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The impetus for investigating the probability density function of high-frequency (HF) noise arises from the requirement for a better noise model for automatic modulation recognition techniques. Many current modulation recognition methods still assume Gaussian noise models for the transmission medium. For HF communications this can be an incorrect assumption. Whereas a previous investigation [1] focuses on the noise density function in an urban area of Adelaide Australia, this work studies the noise density function in a remote country location east of Adelaide near Swan Reach, South Australia.

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EL GHZAOUI, Mohammed. "Performance Analysis of MIMO System over an In-home PLC Channel." ASM Science Journal 15 (May 17, 2021): 1–10. http://dx.doi.org/10.32802/asmscj.2020.460.

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Power line communication (PLC) system is an attractive technology for Smart Grid applications. One key benefit of PLC is its low installation cost because, in PLC technology, we do not need to install any extra cable to extend a network due to the accessibility to low voltage power network. Orthogonal frequency division multiplexing (OFDM) is widely used in PLC networks. Currently, Multiple Input Multiple Output (MIMO) technology is one of the processing techniques appropriate to PLC networks, allowing high data rate. In this work, the MIMO-OFDM system is established to provide better performa

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Manuel, Aurélie L., Daniel Roquet, Ramon Landin-Romero, et al. "Interactions between decision-making and emotion in behavioral-variant frontotemporal dementia and Alzheimer’s disease." Social Cognitive and Affective Neuroscience 15, no. 6 (2020): 681–94. http://dx.doi.org/10.1093/scan/nsaa085.

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Abstract Negative and positive emotions are known to shape decision-making toward more or less impulsive responses, respectively. Decision-making and emotion processing are underpinned by shared brain regions including the ventromedial prefrontal cortex (vmPFC) and the amygdala. How these processes interact at the behavioral and brain levels is still unclear. We used a lesion model to address this question. Study participants included individuals diagnosed with behavioral-variant frontotemporal dementia (bvFTD, n = 18), who typically present deficits in decision-making/emotion processing and a

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Jia, Guangyao, Hangyu Lu, Shun Wang, Xin Xu, and Xiaojun Liu. "A Novel Demodulation Scheme of MSK Signals Based on One-Dimensional Convolutional Neural Network under Impulsive Noise." Electronics 12, no. 21 (2023): 4520. http://dx.doi.org/10.3390/electronics12214520.

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The atmospheric noise widely present in very-low-frequency and low-frequency (VLF/LF) communication systems is usually considered as a type of impulsive noise, which can degrade the performance of signal processing methods based on Gaussian noise. To solve the problems of difficult model training and complex noise parameter estimation under impulsive noise in other demodulation schemes of minimum shift keying (MSK) signals, we use one-dimensional convolutional neural networks (1D-CNNs) to replace the integrator and decision module in coherent demodulation instead of the entire demodulation pro

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Oh, Hyungkook, and Haewoon Nam. "Maximum Rate Scheduling With Adaptive Modulation in Mixed Impulsive Noise and Additive White Gaussian Noise Environments." IEEE Transactions on Wireless Communications 20, no. 5 (2021): 3308–20. http://dx.doi.org/10.1109/twc.2021.3049124.

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Miyamoto, Shinichi, Norihiko Morinaga, and Masaaki Katayama. "Signal-detection characteristics in trellis-coded modulation system under impulsive noise environment and its optimum reception." Electronics and Communications in Japan (Part I: Communications) 76, no. 5 (1993): 88–100. http://dx.doi.org/10.1002/ecja.4410760509.

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Pasion, Rita, Catarina Prata, Marisa Fernandes, et al. "N2 amplitude modulation across the antisocial spectrum: a meta-analysis." Reviews in the Neurosciences 30, no. 7 (2019): 781–94. http://dx.doi.org/10.1515/revneuro-2018-0116.

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Abstract Despite the accumulated knowledge on antisocial behavior and the positive event-related potential peaking around 300 ms (P3), less is known about the preceding negative electrophysiological response around 200 ms (N2). A systematic search of the literature was conducted to analyze the N2 modulation across the antisocial spectrum. Thirty-seven studies (n = 1199) were retrieved to the quantitative analysis. Reduced N2 amplitudes were found in the more severe antisocial manifestations (violent behavior and antisocial personality disorder), which is consistent with previous findings on P3

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Bharadwaja, Bommagani, Jangili Swagath, Elakatti Ram Charan, and Vatte Sandeep. "Performance Analysis of OFDM under Rician Fading Channel using Various Digital Modulation Methods." Oct-Nov 2023, no. 36 (October 16, 2023): 31–42. http://dx.doi.org/10.55529/ijrise.36.31.42.

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The widespread use of mobile platforms has resulted in significant challenges related to power constraints and the Quality of Service(QoS) provided by Orthogonal Frequency Division Multiplexing (OFDM) systems. The examination of Bit Error Rate (BER) and Signal-to-Noise Ratio (SNR) is of significant importance in comprehending and enhancing the design of OFDM systems. The utilization of wireless technology in everyday life has experienced a gradual and consistent growth. OFDM is a prevalent technique for multicarrier transmission, which effectively utilizes parallel data streams. OFDM is consid

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KEELE, N. BRADLEY, and DAVID R. RANDALL. "Altered Modulation of Excitatory Neurotransmission in the Amygdala by Serotonin in an Animal Model of Impulsive Aggression." Annals of the New York Academy of Sciences 985, no. 1 (2006): 528–32. http://dx.doi.org/10.1111/j.1749-6632.2003.tb07119.x.

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