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OFDM Error Vector Magnitude Distortion Analysis
IEICE Transactions on Electronics, 2006We derived explicit formulas for evaluating the error vector magnitude (EVM) from the amplitude distortion (AM-AM) and phase distortion (AM-PM) of power amplifiers (PAs) in orthogonal frequency-division multiplexing (OFDM) systems, such as the IEEE 802.1 1a/g wireless local area networks (WLANs) standards.
S. YAMANOUCHI, K. KUNIHIRO, H. HIDA
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SLIC EVM — Error vector magnitude without demodulation
2017 89th ARFTG Microwave Measurement Conference (ARFTG), 2017We present a method for measuring a communication signal's inband error caused by a non-ideal device under test (DUT). In contrast to the established error vector magnitude (EVM), we do not demodulate the data symbols. Rather, we subtract linearly correlated (SLIC) parts from the DUT output and analyze the power spectral density of the remaining error ...
Karl Freiberger +2 more
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Error Vector Magnitude Analysis for OFDM Systems
2006 Fortieth Asilomar Conference on Signals, Systems and Computers, 2006Error vector magnitude (EVM) is a popular figure-of-merit adopted by various communication standards for evaluating in-band distortions introduced in a communication system. In this paper, we regard EVM as a random variable and investigate its statistical distributions as the result of the following distortion mechanisms: phase noise, amplitude ...
Chunming Zhao, Robert J. Baxley
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Enhanced error vector magnitude (EVM) measurements for testing WLAN transceivers
Proceedings of the 2006 IEEE/ACM international conference on Computer-aided design - ICCAD '06, 2006As wireless LAN devices become more prevalent in the consumer electronics market, there is an ever increasing pressure to reduce their overall cost. The test cost of such devices is an appreciable percentage of the overall cost, which typically results from the high number of specifications, the high number of distinct test set-ups and equipment pieces
Erkan Acar, Sule Ozev, Kevin Redmond
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Error Vector Magnitude Measurement On Cascaded Butler Matrices System
2007 Asia-Pacific Microwave Conference, 2007This paper describes error vector magnitude (EVM) measurement on vehicle communication system that employs low noise amplifiers (LNAs) and cascading Butler Matrices in producing broad beam high linearity and high gain narrow beam system. The output signals from the first Butler Matrix that have high gain and narrow beam width can be used for long ...
Sharul Kamal Abdul Rahim, Peter Gardner
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The Error Vector Magnitude (EVM) performance in LTE Downlink
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2019The Error Vector Magnitude (EVM) is a useful magnitude in the development and design process to indicate the entire signal quality. The post-equalized signal has better performance than pre-equalized signal due to its robustness against noise during channel equalization processing under ideal and interpolation channel estimation.
Hsuan-Fu Wang +2 more
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Importance of Preserving Correlations in Error-Vector-Magnitude Uncertainty
2018 91st ARFTG Microwave Measurement Conference (ARFTG), 2018Correlations between measurement records, e.g., frequencies or time records, are an important consideration in the uncertainty analysis of high-frequency electronic systems. To study the importance of preserving correlations, we introduce a method to scramble the correlations of a correlated uncertainty analysis and develop a software tool to do this ...
Benjamin F. Jamroz +3 more
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