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Measured Quantizing Noise Spectrum for Single-Integration Delta-Modulation Coders

01 February 1970

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We give experimental verification, for idle-channel and sinusoidal inputs, of a recently developed quantizing noise theory for asymmetrical, singleintegration delta-modulators. A recent paper by Iwersen described a procedure for calculating quantizing noise for single-integration delta-modualtion coders employing unequal positive and negative integrator step sizes.1 The purpose of this note is to provide experimental verification of the theory. Measured quantizing noise for both idle-channel and sinusoidal inputs is given and the idle-channel noise spectrum is calculated. Defining the positive,