Results 61 to 70 of about 2,410 (185)
Syllabic-companding log domain filters [PDF]
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 2001 A general theory for companding log domain filters is proposed which combines not only exponential mappings, but also a new translational mapping approach which guarantees suitable operating conditions in any log domain filter. The filter equations resulting from the use of the theory ultimately contain translinear terms which are known to be ...
D. Frey +3 more
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On Optimizing the PAPR of OFDM Signals With Coding, Companding, and MIMO
IEEE Access, 2019 One main disadvantage of the multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system is that the signals transmitted on each antenna may experience high peak-to-average-power ratio (PAPR). We will present a new hybrid
Francisco Sandoval +2 more
doaj +1 more source
Single-input Multiple-output Tunable Log-domain Current-mode Universal Filter [PDF]
, 2013 This paper describes the design of a current-mode single-input multiple-output (SIMO) universal filter based on the log-domain filtering concept.
Dejhan, K., Prommee, P.
core +1 more source
IEEE Access, 2017 Generally, the probability density function (PDF) of orthogonal frequency division multiplexing (OFDM) signal amplitudes follow the Rayleigh distribution, thus, it is difficult to correctly predict the existence of impulsive noise (IN) in powerline ...
Kelvin Anoh +4 more
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Low-voltage CMOS log-companding techniques for audio applications [PDF]
, 2004 This paper presents a collection of novel current-mode circuit techniques for the integration of very low-voltage (down to 1 V) low-power (few hundreds of μA) complete SoCs in CMOS technologies.
Huertas Díaz, José Luis +2 more
core +1 more source
Multipurpose audio signal compander
IEEE Transactions on Consumer Electronics, 1993 A new 20 b digital signal processor is presented which is especially designed to provide a cost-effective solution for audio data reduction and corresponding channel decoding tasks. The Multipurpose Audio Signal Compander (MASC) combines the computing power of a digital signal processor, the sophisticated features of a single chip controller, and ...
Witte, F.-O. +4 more
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Companding in signal processing
Electronics Letters, 1990 The use of companding in signal processing is considered. The applications discussed include noise reduction as well as increasing selectivity in single sinusoid detection.
Y.P. Tsividis, V. Gopinathan, L. TóTh
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AN IMPROVED PAPR REDUCTION TECHNIQUE FOR UNIVERSAL FILTER MULTI-CARRIER MODULATION [PDF]
Acta Electrotechnica et Informatica, 2018 Universal Filter Multi-Carrier (UFMC) modulation is a potential candidate for next generation wireless communication due to its advantages like better sub carrier separation and less complexity.
Pooja RANI, Silki BAGHLA, Himanshu MONGA
doaj +1 more source
Nonlinear companding transform for PAPR reduction in lattice-OFDM system
Tongxin xuebao, 2015 Since the inherent higher peak-to-average power ratio (PAPR) in lattice OFDM (LOFDM) is higher than that of conventional OFDM systems, a novel continuous and differentiable nonlinear companding scheme is investigated and analyzed when employing the ...
Si-ming PENG +4 more
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IEEE Access, 2019 Reliable wireless data transmission in intelligent transportation systems (ITS) has drawn a wide concern in recent years. As an efficient wireless transmission technology, multi-carrier communication (MCM) finds its way in many applications. However, the
Jun Hou +5 more
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