Stabilization of Relay-Type Discrete Systems Using Triangular and Square Wave Dither

In a previous correspondence1, stabilization of relay-type discrete systems using high-frequency sinusoidal dither, by the method of a dual input discrete describing function was discussed. The dual input discrete describing function reduces to the ordinary describing function of a saturating amplifier and a relay with dead zone when triangular and square wave stabilizing signals are used. © 1970 IEEE