SPECTRA OF QUANTIZED SIGNALS 



451 



^-3 



2 



2 10- 



2 



3 4 



t 10 ' 



120 160 200 240 280 320 



FREQUENCY/ SIGNAL BAND WIDTH 



360 



400 



440 



Fig. 4 — Spectrum of distortion from quantizing the magnitudes of a random noise 

 wave. Full load on the quantizer is reached by peaks 12 db above the r.m.s. value of 

 input. 



