Results 51 to 60 of about 1,404 (166)
A New Approach to Peak Threshold Estimation for Impulsive Noise Reduction Over Power Line Fading Channels [PDF]
, 2018 Impulsive noise (IN) is a major component that degrades signal integrity in power line communication (PLC) systems. PLC systems driven by orthogonal frequency-division multiplexing (OFDM) have Rayleigh distributed amplitudes.
Adebisi, Bamidele +5 more
core +2 more sources
C Implementation & comparison of companding & silence audio compression techniques
, 2010 International Journal of Computer Science Issues online at http://ijcsi.org/articles/C-Implementation-comparison-of-companding-silence-audio-compression-techniques ...
Dangarwala, Kruti, Shah, Jigar
openaire +2 more sources
A Novel Differential Log‐Companding Amplifier for Biosignal Sensing
Journal of Sensors, Volume 2016, Issue 1, 2016., 2016 We proposed a new method for designing the CMOS differential log‐companding amplifier which achieves significant improvements in linearity, common‐mode rejection ratio (CMRR), and output range. With the new nonlinear function used in the log‐companding technology, this proposed amplifier has a very small total harmonic distortion (THD) and ...
Zigang Dong +3 more
wiley +1 more source
Earth and Space Science, Volume 11, Issue 8, August 2024.Abstract The Terminal Tracking Camera (TTCam) imaging system on the NASA Lucy Discovery mission consists of a pair of cameras that are being used mainly as a navigation and target acquisition system for the mission's asteroid encounters. However, a secondary science‐focused function of the TTCam system is to provide wide‐angle broadband images over a ...
Y. Zhao +11 more
wiley +1 more source
International Journal of Antennas and Propagation, Volume 2016, Issue 1, 2016., 2016 Orthogonal Frequency Division Multiplexing (OFDM) is a popular multicarrier technique used to attain high spectral efficiencies. It also has other advantages such as multipath tolerance and ease of implementation. However, OFDM based systems suffer from high Peak‐to‐Average Power Ratio (PAPR) problem. Because of the nonlinearity of the power amplifiers,
Hidekazu Shimodaira +3 more
wiley +1 more source
On the efficiency of PAPR reduction schemes deployed for DRM systems [PDF]
, 2016 Digital Radio Mondiale (DRM) is the universally, openly standardized digital broadcasting system for all frequencies including LW, MW, and SW as well as VHF bands.
Fuhrwerk, Martin +4 more
core +1 more source
A Scaling Scheme for DCT Precoded Optical Intensity‐Modulated Direct Detection Systems
Journal of Electrical and Computer Engineering, Volume 2015, Issue 1, 2015., 2015 A scaling technique is employed to improve the performance of a Discrete Cosine Transform (DCT) precoded optical intensity‐modulated direct detection (IM/DD) OFDM system, which fully exploits the dynamic range of a digital‐to‐analog converter (DAC). The theoretical analysis shows that the proposed scaling scheme can improve the BER performance of DCT ...
Zhongpeng Wang +5 more
wiley +1 more source
Constrained RS coding for Low Peak to Average Power Ratio in FBMC - OQAM Systems [PDF]
Journal of Electrical and Electronics Engineering, 2019 Multi-carrier modulation techniques have now become a standard in many communication protocols. Filter bank based multi-carrier (FBMC) generation techniques have been discussed in the literature as a means for overcoming the shortcomings of IFFT/FFT ...
Job CHUNKATH +2 more
doaj
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
Analogue to Digital and Digital to Analogue Converters (ADCs and DACs): A Review Update [PDF]
, 2016 This is a review paper updated from that presented for CAS 2004. Essentially, since then, commercial components have continued to extend their performance boundaries but the basic building blocks and the techniques for choosing the best device and ...
Pickering, J.
core +3 more sources