Log-domain All-pass Filter-based Multiphase Sinusoidal Oscillators [PDF]
, 2013 Log-domain current-mode multiphase sinusoidal oscillators based on all-pass filters are presented in this paper. The first-order differential equation is used for obtaining inverting and non-inverting all-pass filters.
Prommee, P., Wongprommoon, N.
core
An Enhanced Companding Algorithm for Universal Filtered Multi-Carrier System
ETRI JournalThis paper proposes a new companding scheme called three μ-law compand-ing to reduce the peak-to-average power ratio (PAPR) in a universal filtered multicarrier system. The proposed scheme is more flexible and provides better PAPR reduction and bit error
Vijaya Durga Chintala +3 more
doaj +1 more source
Piecewise-linear companding transform for peak-to-average power ratio reduction of OFDM signals
Tongxin xuebao, 2011 In order to reduce the peak-to-average power ratio（PAPR） of orthogonal frequency division multiplexing（OFDM） signals,a piecewise-linear companding transform was proposed.Small amplitudes were multiplied by a scale factor,while large ones were not only ...
YANG Pin-lu, HU Ai-qun
doaj +2 more sources
Performance Analysis of Hybrid Peak to Average Power Ratio Reduction Techniques in 5G UFMC Systems
IEEE Access, 2019 The universal filtered multi-carrier (UFMC) technique has been proposed as a prominent waveform candidate for fifth generation (5G) communication techniques.
Ali F. Almutairi +2 more
doaj +1 more source
ICT ExpressThe filter bank multi-carrier with offset quadrature amplitude modulation (FBMC/OQAM) is extensively utilized in communication scenarios characterized by severe Doppler interference, owing its remarkable ability for precise time–frequency positioning ...
Xinyu Liu +4 more
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Analisa Kualitas Sinyal Suara pada Layanan MailBox Berbasis Teknologi Interactive Voice Response(IVR) [PDF]
, 2010 Salah satu Aplikasi IVR yang diimplementasikan pada layanan mailbox memiliki kegunaan untuk meninggalkan pesan jika penerima telepon tidak ada di rumah. Kendala yang dihadapi adalah kurang jernihnya pesan yang ditinggalkan, sehingga aplikasi IVR tesebut ...
Yuliana, Mieke
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An FFT-Based Companding Front End for Noise-Robust Automatic Speech Recognition
EURASIP Journal on Audio, Speech, and Music Processing, 2007 We describe an FFT-based companding algorithm for preprocessing speech before recognition. The algorithm mimics tone-to-tone suppression and masking in the auditory system to improve automatic speech recognition performance in noise.
Turicchia Lorenzo +3 more
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PERANCANGAN UPGRADEABLE DIGITAL ANSWERING MACHINE BERBASIS TEKNOLOGI FPGA [PDF]
, 2002 Mesin penjawab telepon digital menggunakan chip-chip memori media penyimpanan informasi (pesan)
Baki, Siti Halimah, Sugiarto, Indar
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Efficient Digital Signal Processing Techniques and Architectures for On-Board Processors [PDF]
, 2016 In this paper, we present a number of algorithmic and architectural DSP solutions to be incorporated in digital OBPs for communication satellites to boost the system performance primarily in terms of reducing their power consumption.
Angeletti, P. +11 more
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Piecewise companding transform assisted optical-OFDM systems for indoor visible light communications
, 2017 In visible light communications (VLCs) relying on intensity-modulation and direct detection (IM/DD), the conversion from electrical signals to optical signals and the limited dynamic range of the light-emitting diodes (LEDs) constitute the fundamental ...
Hanzo, Lajos +2 more
core +1 more source