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Citation - WoS: 22
Citation - Scopus: 24
A Note on Determination of Oscillation Startup Condition
(Springer, 2006) Singh, Vimal
There prevails a widespread notion that, given a closed-loop system, oscillation will commence and build up therein if the magnitude of loop gain is greater than unity at the frequency at which the angle of loop gain is zero degree. Three novel examples in which this notion fails are presented.
Citation - WoS: 58
Citation - Scopus: 68
Stability of 2-D Systems Described by the Fornasini-Marchesini First Model
(Ieee-inst Electrical Electronics Engineers inc, 2003) Kar, H; Singh, V
A sufficient condition for the stability of linear two-dimensional (2-D) systems described by the Fornasini-Marchesini (FM) first model is presented. The condition is compared with previously reported conditions.
Citation - WoS: 29
Citation - Scopus: 32
Stability Analysis of 2-D Digital Filters With Saturation Arithmetic: an Lmi Approach
(Ieee-inst Electrical Electronics Engineers inc, 2005) Kar, H; Singh, V
An improved LMI-based criterion for the nonexistence of overflow oscillations in two-dimensional (2-D) digital filters described by the Roesser model employing saturation arithmetic is presented. The criterion makes use of the structural properties (as prevailing in the system under consideration) of the saturation nonlinearities in a greater detail than the usual sector restriction [0, 1].