Results 21 to 30 of about 1,050,910 (295)
IEEE Access, 2022 In this study, we perform an analytical investigation of the electro-optic (EO), Mach-Zehnder modulator (MZM) transmission boundary area with a nonlinear model.
Yus Natali +2 more
doaj +1 more source
Elf: computer automation and error correction for a microwave network analyzer [PDF]
, 1988 A microwave measurement system has been developed that combines a personal computer (PC) and an conventional vector network analyzer to yield a full complex-error-corrected automatic network analyzer.
Compton, Richard C. +2 more
core +1 more source
Error vector magnitude relation to magnitude andphase distortionin 8-PSK systems
Electronics Letters, 2001 Distortion in 8-PSK systems is a consequence of magnitude and phase disturbances. This work investigates the effects of such distortions (either isolated or combined) due to Gaussian bandpass noise, through analytical and simulation studies. Analytical expressions are derived and analytical-based results, relating error vector magnitude to symbol error
J.L. Pinto, I. Darwazeh
openaire +1 more source
Simultaneous Dual Band Transmission Over Multimode Fiber-Fed Indoor Wireless Network [PDF]
, 2006 Performance measurements of different combinations of digital enhanced cordless telecommunications packet radio service, global system for mobile communications, universal mobile telecommunication service, and 802.11g (54 Mbps) signals in a dual band ...
Batchelor, John C. +7 more
core +1 more source
Doubly Optimized Calibrated Support Vector Machine (DOC-SVM): an algorithm for joint optimization of discrimination and calibration. [PDF]
, 2012 Historically, probabilistic models for decision support have focused on discrimination, e.g., minimizing the ranking error of predicted outcomes. Unfortunately, these models ignore another important aspect, calibration, which indicates the magnitude of ...
Jiang, Xiaoqian +4 more
core +2 more sources
MATEC Web of Conferences, 2016 In digital modulation quality parameters traceability, the Error Vector Magnitude, Magnitude Error and Phase Error must be traced, and the measurement uncertainty of the above parameters needs to be assessed.
Zhan Zhiqiang +3 more
doaj +1 more source
BMC Ophthalmology, 2018 Background To evaluate the refractive and visual outcomes of Transepithelial photorefractive keratectomy (TransPRK) in the treatment of low to moderate myopic astigmatism.
Lei Xi, Chen Zhang, Yanling He
doaj +1 more source
IEEE Antennas and Wireless Propagation Letters, 2019 This letter presents the error vector magnitude (EVM), intermodulation (IM), and radiation performances of a reconfigurable antenna capable of varying its bandwidth between 3.4–3.6 and 3.1–3.9 GHz bands, and steering its main beam into three directions ...
M. A. Towfiq +5 more
semanticscholar +1 more source
Concurrent Dual-Band Receiver Based on Novel Six-Port Correlator for Wireless Applications
IEEE Access, 2017 A concurrent dual-band six-port receiver based on real-valued time-delay neural network (RVTDNN) is proposed in this paper to retrieve two baseband signals from a dual-band radio frequency signal, concurrently.
Weiwei Zhang +5 more
doaj +1 more source
Mask testing of 28 gbaud 16-QAM transmitters using time-resolved error vector magnitude [PDF]
, 2015 We propose time-resolved EVM for characterization of 16-QAM transmitters. By designing a mask test, different impairments can be separated and quantified.
Andrekson, Peter +4 more
core +1 more source