A Generalized Method for Analyzing Servomechanisms

Through the use of the algebra of dyadics a unification of dc and ac servo theory is obtained. The effects arising from the asymmetry of the sidebands in an ac (carrier-frequency) servo are automatically taken into account. In the case of a symmetrical sideband carrier-frequency servo or a dc servo, the generalized operators introduced reduce to the ordinary transfer functions of the system components.