Patent ID: 7791329

Claim:
A method of equalization of a vector/signal analyzer, the vector signal/analyzer including a linear filter in a signal path between an input terminal and an output terminal, wherein the linear filter is responsive to applied coefficients to correct frequency distortion, comprising: (a) providing a structured test signal within a selected frequency range, the structured test signal comprising a plurality of frequency components each having a respective amplitude and phase; (b) inputting the test signal to the analyzer; the analyzer operating to condition the test signal; (c) determining information representative of frequency distortion of the conditioned test signal introduced by the analyzer; (d) generating a set of equalization coefficients based on the information representative of the frequency distortion, the set of coefficients corresponding to the selected frequency range; (e) storing the set of equalization coefficients and the correspondence of the set of coefficients to the selected frequency range; and (f) applying the stored coefficients to the linear filter; wherein the determining information representative of frequency distortion of the condition test signal introduced by the analyzer comprises evaluating variations in the phases and amplitudes of the frequency components of the conditioned test signal.