Vector signal analyzer: Difference between revisions

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Vector signal analyzers are useful in measuring and [[Demodulation|demodulating]] [[Modulation #Digital modulation methods |digitally modulated signals]] like [[W-CDMA (UMTS)|W-CDMA]], [[3GPP Long Term Evolution|LTE]], and [[Wireless LAN|WLAN]]<ref>National Institute of Technology and Standards [http://www.eeel.nist.gov/kate_papers/R13_NIST_TN1546_Modulated_Signal_(Web)1.pdf], ''Measurement to Support Modulated-Signal Radio Transmissions for the Public-Safety Sector'', pg. 15, April, 2008, accessed July 19, 2011.</ref>. These measurements are used to determine the quality of [[modulation]] and can be used for design validation and compliance testing of electronic devices.
 
===Operation===
[[Image:Vsa block.PNG|right|400px|thumb|A vector signal analyzer block diagram featuring a down-convert stage, a digitizing stage, and a [[digital signal processing|DSP]] and display stage]]
The vector signal analyzer spectrum analysis process typically has a down-convert & digitizing stage and a [[digital signal processing|DSP]] & display stage.