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Showing 1 to 20 of 150 for “"amplitude modulation"”.

  1. Laryngeal-Level Amplitude Modulation in Vibrato

    Reese, Lorie C.2006

    … tract filtering is primarily responsible for the amplitude modulation (AM) present in Western classical vibrato. Using electroglottography (EGG) and the EGG speed quotient, which is sensitive to fluctuations in the amplitude of vocal fold vibration, AM was detected at the laryngeal (source) level, …

    byu Repository record

  2. Emona-based interactive amplitude modulation/demodulation iLab

    Achelengwa, Edison MMassachusetts Institute of Technology2011

    … an experiment for studying one of such schemes, Amplitude Modulation. The NI ELVIS is used together with a device called the Emona Digital and Analog Telecommunications Experimenter (DATEx) to achieve the Amplitude Modulation lab setup. This iLab is an Interactive iLab, which gives one student at …

    mit Repository record

  3. The amplitude-modulation-following response as an audiometric tool

    Griffiths, Scott KeithUniversity of Illinois at Urbana-Champaign2011

    The amplitude-modulation-following response (AMFR) is a sinusoidal auditory-evoked potential recorded to continuous, sinusoidally amplitude-modulated tones. Kuwada, et al. (1986) defined the AMFR and argued its audiometric utility. The current study consisted of four experiments designed to …

    uiuc Repository record

  4. Automatic voice disorder recognition using acoustic amplitude modulation features

    Malyska, Nicolas, 1977-Massachusetts Institute of Technology2004

    … recognition system is designed that exploits amplitude modulations (AM) in voice using biologically-inspired models. This system recognizes general dysphonia and four subclasses: hyperfunction, A-P squeezing, paralysis, and vocal fold lesions. The models developed represent processing in the …

    mit Repository record

  5. Modeling amplitude-modulation atomic force microscopy using direct-quadrature transformation

    Xu, YuchenUniversity of Illinois at Urbana-Champaign2020

    The student, Yuchen Xu, accepted the attached license on 2020-04-29 at 12:03.

    uiuc Repository record

  6. Efficient, low-distortion switch-mode power amplifier for amplitude modulation

    Buenrostro, Christopher (Christopher B.)Massachusetts Institute of Technology2011

    Amplitude modulation systems are used in many areas of engineering, especially communication based disciplines. Typical systems have low-level signals which encode the desired information to be transmitted. These low-level signals are usually not of adequate power to transmit the desired …

    mit Repository record

  7. Mechanistic Basis of Signal Amplitude Modulation by the Ras Effector IMP

    Chen, Chiyuan2010

    … Here, we examine the mechanistic basis of signal amplitude modulation by the Ras effector IMP. We show that the capacity of IMP to inhibit signal propagation through RAF to MEK is a consequence of disrupting assembly of multivalent mitogenic complexes that are required for C-RAF kinase activation …

    utswmed Repository record

  8. Advances in tunable diode laser spectroscopy using residual amplitude modulation techniques

    Ruxton, KeithUniversity of Strathclyde2010

    strathclyde Repository record

  9. Amplitude modulation and energy conservation of pulsation modes in delta Scuti stars

    Bowman, Dominic MatthewUniversity of Central Lancashire2016

    … Space Tele-scope. A statistical search for amplitude modu-lation of pulsation modes is carried out and it is shown that 61.3 per cent of the 983 δ Sct stars exhibit significant amplitude modulation in at least a single pulsation mode, and that this is uncorrelated with effective temperature …

    cent-lancashire Repository record

  10. Sampling Frequencies Ratio Estimation and Symbol Timing Recovery for Baseband Binary Pulse Amplitude Modulation

    Rodriguez, Ana A. Paniagua

    utahstate Repository record

  11. The Impact of Higher Order Pulse Amplitude Modulation and Transmission Performance over Twisted Pair Cable

    Seitz, KatharinaDe Montfort University2019

    … on the transmission of higher order Pulse Amplitude Modulation and the associated transmission performance. The central research question is:“how well can we optimize the transmission technique in order to be able to maximise the data bandwidth over Ethernet cable and, given that remote …

    de-montfort Repository record

  12. Amplitude modulation of velocity and wall shear stress in turbulent channel flow with hemispherical roughness

    Wu, SicongUniversity of Illinois at Urbana-Champaign2020

    … energy-containing large-scale events amplitude-modulate (AM) the small-scale activities in the near-wall region. While smooth surfaces are ideal for the theoretical modeling of wall turbulence, rough surfaces are more widely encountered in practical engineering problems. The presence …

    uiuc Repository record

  13. A study of the problems involved in finding a location and acquiring a license to build an amplitude modulation radio station

    Brown, Robert Edward1949

    Thesis (M.A.)--Michigan State College of Agriculture and Applied Science. Dept. of Speech, Dramatics, and Radio Education, 1949

    msu Repository record

  14. Auditory spectro-temporal processing in the envelope-frequency domain: experiments and models

    Ewert, StephanUniversität Oldenburg

    … i) envelope-frequency selectivity, ii) coding of amplitude-modulation depth, and the iii) analysis of complex modulations. A functional model of hearing is proposed that successfully accounts for the empirical data. Chapter 1 derives the bandwidth and the shape of auditory modulation filters in …

    oldenburg Repository record

  15. Multimaterial fiber microelectromechanical systems based on electrostrictive P(VDF-TrFE-CFE)

    Clayton, Jefferson (Jefferson Daniel)Massachusetts Institute of Technology2015

    … source reflected off the surface of the fiber. Amplitude modulation of incident light through electric field induced deflection is demonstrated up to the second harmonic frequency of the fiber at 158.3Hz, and a modulation depth of 22.5% is reported; for an array of such fibers in PDMS, amplitude …

    mit Repository record

  16. Near-optimal inversion of incoherent scatter radar measurements: coding schemes, processing techniques, and experiments

    Nikoukar, RominaUniversity of Illinois at Urbana-Champaign2010

    … lag estimates at individual altitudes, and (ii) modulation techniques that can provide more accurate estimates with a specific range resolution. These two aspects suggest a unifying framework for ISR inversion in which modern computational technology and ISR methodology are utilized in a robust …

    uiuc Repository record

  17. An ultra high resolution FMCW radar

    Bas, AlonDepartment of Electrical Engineering1992

    … also found to perform satisfactorily. However, amplitude modulation was observed in the mixing process and subsequently, the modelling process did not perform satisfactorily when interfaced to the hardware. Due to the amplitude modulation problem, two closely-spaced targets disrupted the high …

    cape-town Repository record

  18. The Effectiveness Of Data Codes And Hardware Selection To Mitigate Scintillation Effects On Free Space Optical Data Transmission

    Stein, Keith

    … regards to code techniques for error correction, amplitude modulation and hardware architecture schemes. This study simulated the use of arrays and large apertures for the receiving devices, and compared the resultant scintillation index with the theoretical calculations.

    ucf

  19. Quantum dot gain-lever laser diode

    Naderi, Nader

    … potential for high differential gain and direct modulation with negligible chirp. Recently, substantial efforts have been made to improve the modulation characteristics of QD semiconductor lasers such as enhancing the modulation efficiency and improving the overall modulation bandwidth. The gain …

    unm Repository record

  20. Power allocation and linear precoding for wireless communications with finite-alphabet inputs

    Wang, MingxiMissouri University of Science and Technology2016

    … inputs such as phase-shift keying (PSK), pulse-amplitude modulation (PAM), and quadrature amplitude modulation (QAM) signals. This approach, without the commonly used Gaussian input assumptions, complicates the mutual information analysis and precoder design but improves performance when the …

    must-thes Repository record

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