Patent ID: 6763323
Filing Date: 2004-07-13
Classification: G01R,H03H

Abstract:
A spectrum analyzer, comprising a resolution filter for filtering a base band signal for a narrow band and having a complex pulse response hused(t) ofhused(t)=C1Â·eâˆ’C2Â·t2Â·eâˆ’jÂ·C3Â·t2 wherein C1, C2 and C3 are constants, wherein constant C3 equals C3=Ï€K&CenterDot;Bres2wherein Bres is a bandwidth of the resolution filter and K is a K-factor of the resolution filter, while the K factor is defined by the equation f&it;(t)=1K&CenterDot;Bres2&CenterDot;tand f(t) is a variable frequency linear with time t, that is supplied to a mixer coupled in series with the resolution filter of the spectrum analyzer.