Vector signal analyzer: Difference between revisions

Revision as of 10:04, 17 April 2014

Revision as of 09:11, 2 September 2018

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'''Signal Spectrum from FFT'''

{{main|Fast Fourier Transform}}

: A [[fast fourier transform|FFT]] is used to compute the frequency spectrum of the signal. Usually there is a [[window function|windowing function]] option to limit [[spectral leakage]] and enhance frequency resolution.<ref>Agilent [http://cp.literature.agilentcdn.keysight.com/litweb/pdf/59905989-7451EN1121EN.pdf], ''Agilent Vector Signal Analysis Basics'', pg. 12, Figure 8, accessed August 11, 2011.</ref> This window is implemented by multiplying it with the digitized values of the sample period before computing the FFT.

'''Constellation Diagram'''

{{main|Constellation diagram}}

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==References==

* Communications Systems Analysis Using Hardware and Software-Based Vector Signal Analyzers [http://www.usnaewh.eduieee.org/EEr2/researchbaltimore/VSAChapter/lessonsComm/comm_lab_lesson_1_2_3VSA_COMSOC.pdf]

===Footnotes===