How Many Points to Acquire in a 1-D Spectrum

25 kHz. With a single A/D, we sample rvith a dwell time of 16ps, and with a pair of A/D s we sample with a dwell time of 32 ps. 

Zero filling. Addition of O s at the tail end of time domain data for the purpose of improving the digital resolution in the frequency spectrum fol low ng Fou her tra nsformation. Zero filling increases the number of points per unit frequency (a good thing). 

Digital resolution. The number of FIz per data point in a spectrum. The digital resolution is the sweep width divided by the number of data points in one channel of the spectrum. 

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