Pulse or digital communications – Testing
Reexamination Certificate
2006-04-25
2006-04-25
Chin, Stephen (Department: 2634)
Pulse or digital communications
Testing
C375S226000, C375S227000, C324S613000, C324S614000, C324S622000, C324S076190, C324S076220
Reexamination Certificate
active
07035324
ABSTRACT:
A method and apparatus compensates for phase noise added by a spectrum analyzer from phase noise measurements of a signal under test (SUT) taken by the spectrum analyzer. The method comprises the steps of measuring the phase noise of the SUT, determining the added phase noise of the spectrum analyzer, and applying a mathematical correction to the measured phase noise. A spectrum analyzer apparatus that compensates for added phase noise comprises a controller portion, a memory portion, a signal conversion and detection portion, and a compensation algorithm stored in the memory portion. A system that compensates for added phase noise comprises a controller having a control algorithm and a spectrum analyzer. The compensation and control algorithms are computer programs that implement the method of the present invention.
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Rhode & Schwarz Data Sheet for “Phase Noise Measurement Software FS-K4” for use with Spectrum Analyzer Models FSE/FSIQ/FSP/FSU.
Rhode & Schwarz help menus for using phase noise measurement software, Figs. 1-3, including “Making a Phase Noise Measurement”.
Gorin Joseph Michael
Mar Wing Jong
Agilent Technologie,s Inc.
Chin Stephen
Wang Ted M.
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