Results 91 to 100 of about 2,477 (201)

Pre-Flight Calibration of the Mars 2020 Rover Mastcam Zoom (Mastcam-Z) Multispectral, Stereoscopic Imager. [PDF]

Space Sci Rev, 2021
Hayes AG, Corlies P, Tate C, Barrington M, Bell JF, Maki JN, Caplinger M, Ravine M, Kinch KM, Herkenhoff K, Horgan B, Johnson J, Lemmon M, Paar G, Rice MS, Jensen E, Kubacki TM, Cloutis E, Deen R, Ehlmann BL, Lakdawalla E, Sullivan R, Winhold A, Parkinson A, Bailey Z, van Beek J, Caballo-Perucha P, Cisneros E, Dixon D, Donaldson C, Jensen OB, Kuik J, Lapo K, Magee A, Merusi M, Mollerup J, Scudder N, Seeger C, Stanish E, Starr M, Thompson M, Turenne N, Winchell K.   +42 more
europepmc   +1 more source

Improving bit error rate in optical wireless OFDM systems through hybrid companding and precoding strategies

EURASIP Journal on Wireless Communications and Networking
Visible light communication (VLC) is a promising wireless high-data-rate transmission technology that uses visible light. Optical Orthogonal Frequency Division Multiplexing (OOFDM)-based systems, especially asymmetrically clipped optical OFDM (ACO-OFDM),
Amal Yasser, Albashir A. Youssef, Mohamed Abaza   +2 more
doaj   +1 more source

ACSB: A minimum performance assessment [PDF]

Amplitude companded sideband (ACSB) is a new modulation technique which uses a much smaller channel width than does conventional frequency modulation (FM). Among the requirements of a mobile communications system is adequate speech intelligibility.
Jones, Lloyd Thomas, Kissick, William A.
core   +1 more source

Fano resonant optical coatings platform for full gamut and high purity structural colors. [PDF]

Nat Commun, 2023
ElKabbash M, Hoffman N, Lininger AR, Jalil SA, Letsou T, Hinczewski M, Strangi G, Guo C.   +7 more
europepmc   +1 more source

Testbed Configuration for Minimizing PAPR in GFDM Systems Through a Novel Companding Approach

IEEE Access
Generalized frequency division multiplexing (GFDM) has emerged as a quintessential waveform candidate poised to meet the stringent requirements of next-generation wireless communication frameworks, addressing pivotal 5G physical layer challenges through ...
Sowbhagya Appalla, Siva Prasad Valluri, K. N. G. B. Yaswanth, Kishore Vejandla, Chakravarthy Gunturu, Gundla Jagapathi, Nittala Noel Anurag Prashanth, A. V. Prabu   +7 more
doaj   +1 more source

Energy-Limited Joint Source-Channel Coding of Gaussian Sources over Gaussian Channels with Unknown Noise Level. [PDF]

Entropy (Basel), 2023
Lev O, Khina A.
europepmc   +1 more source

Symbol interferometry and companding transform for PAPR reduction of OTFS signal

ETRI Journal
This paper presents methods for reducing the peak-to-average power ratio (PAPR) of the orthogonal time frequency space (OTFS) signal. These methods mainly consist of two operations: symbol interferometry (SI) and either μ-law or A-law companding.
Aare Gopal, Desireddy Krishna Reddy, Srinivasarao Chintagunta   +2 more
doaj   +1 more source

Underlying Security Transmission Design for Orthogonal Time Frequency Space (OTFS) Modulation. [PDF]

Sensors (Basel), 2022
Liang W, Liu X, Shi J, Li L, Hu J.
europepmc   +1 more source

A Novel partial sequence technique based Chaotic biogeography optimization for PAPR reduction in eneralized frequency division multiplexing waveform. [PDF]

Heliyon, 2023
Xue X, Palanisamy S, A M, Selvaraj D, Khalaf OI, Abdulsahib GM.   +5 more
europepmc   +1 more source

A Comprehensive Experimental Emulation for OTFS Waveform RF-Impairments. [PDF]

Sensors (Basel), 2022
Abushattal A, Zegrar SE, Yazgan A, Arslan H.   +3 more
europepmc   +1 more source