EVM Measurement Design for 3G Test Equipment
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With the rapid development in technology and in standardization for the moble communications, the test equipment for the new generation mobile becompes more complicated, which results in the measurement accuracy being more complicated. Error Vector Magnitude (EVM) is specified as a modulation quality metric by 3GPP. This paper discusses the relationships among the test unit noise, the target EVM, and its deviation.
For more information on EVM measurement design, visit Willtek Communications' Web site.