Patent ID: 8249386

Claim:
A method of emulating a specified video bandwidth (VBW) in a spectrum analyzer using overlapping resolution bandwidth (RBW) frames, the method comprising the steps of: acquiring a contiguous block of time data from a radio frequency signal to create a VBW frame, the VBW frame having a number of samples based on the specified VBW, a specified RBW, and a specified sampling frequency; dividing the VBW frame into a number of overlapping RBW frames, the number of overlapping RBW frames being based on the number of samples in the VBW frame and a number of samples in each RBW frame, and the number of samples in each RBW frame being based on the specified RBW, the sampling frequency, and a window-related coefficient; performing a time domain to frequency domain transform on each RBW frame to generate a spectrum trace for each RBW frame; and averaging the spectrum traces for each of the RBW frames to generate a composite spectrum trace that emulates the specified VBW.