Results 41 to 50 of about 322 (180)
Earth and Space Science, Volume 4, Issue 7, Page 396-452, July 2017., 2017 Abstract The NASA Curiosity rover Mast Camera (Mastcam) system is a pair of fixed‐focal length, multispectral, color CCD imagers mounted ~2 m above the surface on the rover's remote sensing mast, along with associated electronics and an onboard calibration target.
J. F. Bell III +19 more
wiley +1 more source
Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.Smart hospitals have enormous potential to improve global standards of medical services. Integrating fifth‐generation (5G) and beyond 5G radio with the present healthcare framework can make hospitals smarter. High spectral access, data rate, capacity, low latency, and large data handling are requirements of innovative hospitals.
Arun Kumar +2 more
wiley +1 more source
Companding techniques for high dynamic range audio CODEC receiver path [PDF]
, 2009 Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.Includes bibliographical references (p.
Ma, Yunjie, M. Eng. Massachusetts Institute of Technology
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THE REDUCTION OF PAPR IN OFDM BY USING NEW COMPANDING TRANSFORM
, 2020 The main drawback of the OFDM is its high peak to average power ratio(PAPR).There are several PAPR reduction techniques. Among the various PAPR reduction techniques, companding transform is attractive for its simplicity and effectiveness.
RAMANAIDU, K., NAGARAJU, T.
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A PAPR correction scheme for LoRa self‐jamming waveforms
IET Communications, Volume 18, Issue 19, Page 1588-1603, December 2024.A self‐jamming scheme of LoRa waveforms enabling secure transmissions is recently proposed in literature, which performs well in simulations. However, experiments on SDR equipment immediately showed that a transmission is impossible due to PAPR introduced by the waveform modification.
Clément Demeslay +5 more
wiley +1 more source
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
A Review of Partial Transmit Sequence for PAPR Reduction in the OFDM Systems
IEEE Access, 2019 Orthogonal frequency division multiplexing (OFDM) is a superior technology for the high-speed data rate of wire-line and wireless communication systems.
Yasir Amer Jawhar +6 more
doaj +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
Companding Technique for Reducing Peak-to-Average Power Ratio in OFDM Linear Coded Systems
, 2020 Orthogonal Frequency division multiplexing (OFDM) is a very attractive technique in wireless communications which provides robustness to channel fading and immunity to impulse interference.
Ragini, B. +2 more
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