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Gain, Phase Imbalance, and Phase Noise Effects on Error Vector Magnitude
IEEE Transactions on Vehicular Technology, 2004The error vector magnitude (EVM) is extensively applied as a measure of communication systems' performance. In this paper, the effects of gain, phase imbalance, and phase noise on EVM are examined. The work is focused on single-carrier, linear, and memoryless modulated signals, such as phase-shift keying and quadrature amplitude modulation (QAM).
Apostolos Georgiadis
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Error Vector Magnitude as a Performance Measure for Advanced Modulation Formats
IEEE Photonics Technology Letters, 2012We examine the relation between optical signal-to-noise ratio (OSNR), error vector magnitude (EVM), and bit-error ratio (BER). Theoretical results and numerical simulations are compared to measured values of OSNR, EVM, and BER. We conclude that the EVM is an appropriate metric for optical channels limited by additive white Gaussian noise.
Jürgen Becker +2 more
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Study of Digital Modulation Signal Error Vector Magnitude Based on Vector Signal Analyzer
2015 8th International Symposium on Computational Intelligence and Design (ISCID), 2015In this article, based on the working principle of vector signal analyzer and theories of error vector magnitude (EVM), Combined signal demodulation experiment of vector signal analyzer, converting some types of digital modulation signal EVM into root mean square of error vector magnitude(EVMRMS).
Huan Li, Wenhua Ye
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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.
Shingo Yamanouchi +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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Replacing Error Vector Magnitude Test with RF and Analog BISTs
IEEE Design & Test of Computers, 2011RF and analog BIST techniques are capable of replacing the traditional error vector magnitude (EVM) test used in production. In a case study, four BISTs detected actual production faults in a commercial, highly integrated WLAN device. In combination with traditional digital testing, the BISTs caught an impressive 100% of EVM failures during production ...
Dallas Webster +2 more
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Test setup for error vector magnitude measurement on WLAN transceivers
2012 19th IEEE International Conference on Electronics, Circuits, and Systems (ICECS 2012), 2012This paper presents a measurement system and experimental examples of error vector magnitude measurements on a wireless local area network receiver under several radio frequency impairments, with emphasis to local oscillator phase noise. An algorithm that cancels the phase and frequency carrier synchronization error is presented.
Vitor Fialho +2 more
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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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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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