Browsing by Author "Singh, V"

Now showing 1 - 20 of 22

Citation - WoS: 4
Citation - Scopus: 4
Comments on "global Robust Stability of Delayed Neural Networks"
(Ieee-inst Electrical Electronics Engineers inc, 2006) Singh, V; Department of Mechatronics Engineering
A recently reported result concerning the global robust stability of the equilibrium point of Hopfield-type delayed neural networks is revisited. It is shown that the result is not always right.
Citation - WoS: 21
Citation - Scopus: 21
Elimination of Overflow Oscillations in 2-D Digital Filters Employing Saturation Arithmetic: an Lmi Approach
(Ieee-inst Electrical Electronics Engineers inc, 2005) Singh, V; Department of Mechatronics Engineering
A computationally tractable, i.e., linear matrix inequality (LMI)-based criterion for the elimination of overflow oscillations in two-dimensional (2-D) state-space digital filters described by the Roesser model using saturation arithmetic is presented. The criterion is a generalization over an earlier LMI-based criterion.
Citation - WoS: 49
Citation - Scopus: 54
Elimination of Overflow Oscillations in Digital Filters Employing Saturation Arithmetic
(Academic Press inc Elsevier Science, 2005) Kar, H; Singh, V; Department of Mechatronics Engineering
A criterion for the nonexistence of overflow oscillations in a class of digital filters employing saturation arithmetic is presented. The criterion is based on a novel characterization of the saturation nonlinearity (namely, the 'reduced sector' characterization) and, hence, is quite distinct from previously reported criteria. (c) 2005 Elsevier Inc. All rights reserved.
Citation - WoS: 18
Citation - Scopus: 19
Elimination of Overflow Oscillations in Fixed-Point State-Space Digital Filters Using Saturation Arithmetic: an Lmi Approach
(Academic Press inc Elsevier Science, 2006) Singh, V; Department of Mechatronics Engineering
A criterion for the nonexistence of overflow oscillations in fixed-point state-space digital filters employing saturation arithmetic is presented. The criterion possesses the structure of linear matrix inequality and hence is computationally tractable. The criterion is compared with an earlier LMI-based criterion. (c) 2005 Elsevier Inc. All rights reserved.
Citation - WoS: 54
Elimination of Overflow Oscillations in Fixed-Point State-Space Digital Filters With Saturation Arithmetic: an Lmi Approach
(Ieee-inst Electrical Electronics Engineers inc, 2004) Kar, H; Singh, V; Department of Mechatronics Engineering
A novel, linear-matrix inequality (LMI) based, criterion for the nonexistence of overflow oscillations in fixed-point state-space digital filter employing saturation arithmetic is presented. The criterion is based on a unique characterization (as prevailing in the filter under consideration) of the saturation nonlinearities, namely, an "effective" reduction of the sector.
Citation - WoS: 12
Citation - Scopus: 16
Equivalent Forms of Dual-Ota Rc Oscillators With Application To Grounded-Capacitor Oscillators
(institution Engineering Technology-iet, 2006) Singh, V; Department of Mechatronics Engineering
The equivalent forms (i.e. possessing a common characteristic equation) of some classes of dual-operational transconductance amplifier (OTA) sinusoidal oscillators are brought out. The present results turn out to be an aid to a synthesis procedure previously given by Tao and Fidler for the generation of dual-OTA oscillators.
Citation - WoS: 5
Citation - Scopus: 5
Floating Operational Transconductance Amplifier Based Grounded Impedance
(Iee-inst Elec Eng, 2003) Singh, V; Department of Mechatronics Engineering
A technique to reproduce, in floating form, a given operational transconductance amplifier (OTA) based grounded impedance (GI) is presented. Unlike the back-to-back technique, the technique presented has the feature that the required additional matching constraints (i.e. in addition to those, if any, in the given GI) are independent of the original components, implying that the canonicity with regard to the number of capacitors and the single-element tunability, if any, in the given GI are fully retained in the resulting floating impedance.
Citation - WoS: 193
Citation - Scopus: 210
A Generalized Lmi-Based Approach To the Global Asymptotic Stability of Delayed Cellular Neural Networks
(Ieee-inst Electrical Electronics Engineers inc, 2004) Singh, V; Department of Mechatronics Engineering
A novel linear matrix inequality (LMI)-based criterion for the global asymptotic stability and uniqueness of the equilibrium point of a class of delayed cellular neural networks (CNNs) is presented. The criterion turns out to be a generalization and improvement over some previous criteria.
Citation - WoS: 24
Citation - Scopus: 27
Global Asymptotic Stability of Cellular Neural Networks With Unequal Delays Lmi Approach
(Iee-inst Elec Eng, 2004) Singh, V; Department of Mechatronics Engineering
A criterion for the global asymptotic stability and uniqueness of the equilibrium point of cellular neural networks with unequal delays is presented. The criterion is computationally efficient, since it is in the form of linear matrix inequality (LMI).
Citation - WoS: 116
Citation - Scopus: 126
Global Robust Stability of Delayed Neural Networks: an Lmi Approach
(Ieee-inst Electrical Electronics Engineers inc, 2005) Singh, V; Department of Mechatronics Engineering
New criteria for the uniqueness and global robust stability of the equilibrium point of the interval Hopfield-type delayed neural networks are presented. The criteria possess the structure of linear matrix inequality and, hence, are computationally efficient.
Citation - WoS: 63
Citation - Scopus: 98
Improved Routh-Pade Approximants: a Computer-Aided Approach
(Ieee-inst Electrical Electronics Engineers inc, 2004) Singh, V; Chandra, D; Kar, H; Department of Mechatronics Engineering
A geometric programming based computer-aided method to derive a reduced order (rth-order) approximant for a given (stable) SISO linear continuous-time system is presented. In this method, stability and the first r time moments/Markov parameters are preserved as well as the errors between a set of subsequent time moments/Markov parameters of the system and those of the model are minimized.
Citation - WoS: 42
Citation - Scopus: 47
A Novel Global Robust Stability Criterion for Neural Networks With Delay
(Elsevier Science Bv, 2005) Singh, V; Department of Mechatronics Engineering
A criterion based on the intervalised network parameters for the global robust stability of Hopfield-type neural networks with delay is presented. The criterion is compared with an earlier criterion. (c) 2005 Elsevier B.V. All rights reserved.
Citation - WoS: 19
Citation - Scopus: 27
Obtaining Routh-Pade Approximants Using the Luus-Jaakola Algorithm
(inst Engineering Technology-iet, 2005) Singh, V; Department of Mechatronics Engineering
The Routh-Pade approximation problem relating to the construction of a stable reduced-order (rth-order) approximant G(r)(s) for a given stable high-order (nth-order) transfer function G(s), so as to fully retain the first r time moments/Markov parameters of G(s) as well as to minimise the errors between a few subsequent time moments/Markov parameters of G(s) and those of G(r)(s), is revisited. For the solution of this problem, a novel computer-aided method based on the well known Luus-Jaakola algorithm is proposed.
Citation - WoS: 14
Citation - Scopus: 18
Optimal Routh Approximants Through Integral Squared Error Minimisation: Computer-Aided Approach
(inst Engineering Technology-iet, 2004) Singh, V; Chandra, D; Kar, H; Department of Mechatronics Engineering
A computer-aided method for obtaining a reduced-order approximant of a given (stable) single-input single-output system based on the minimisation of integral squared error (ISE) pertaining to a unit-step input is presented. Both the numerator and denominator coefficients of the model are treated as free parameters in the process of optimisation. The method has a built-in stability-preserving feature. The problem of formulating the ISE is circumvented by introducing a set of equality constraints.
Citation - WoS: 25
Citation - Scopus: 27
Robust stability of 2-D digital filters employing saturation
(Ieee-inst Electrical Electronics Engineers inc, 2005) Singh, V; Department of Mechatronics Engineering
A computationally tractable, i.e., linear matrix inequality (LMI)-based criterion for the global asymptotic stability of uncertain two-dimensional digital filters described by the Fornasini-Marchesini second local state-space model with saturation overflow arithmetic is presented. The criterion is compared with an earlier LMI-based criterion.
Citation - WoS: 59
Citation - Scopus: 66
Robust Stability of 2-D Discrete Systems Described by the Fornasini-Marchesini Second Model Employing Quantization/Overflow Nonlinearities
(Ieee-inst Electrical Electronics Engineers inc, 2004) Kar, H; Singh, V; Department of Mechatronics Engineering
New criteria for the global asymptotic stability of the uncertain two-dimensional (2-D) discrete systems described by the Fornasini-Marchesini second local state-space model under various combinations of overflow and quantization nonlinearities are established. Sufficient conditions for the uncertain 2-D discrete systems to be free of overflow oscillations under a generalized overflow arithmetic are presented.
Citation - WoS: 177
Citation - Scopus: 211
Robust Stability of Cellular Neural Networks With Delay: Linear Matrix Inequality Approach
(Iee-inst Elec Eng, 2004) Singh, V; Department of Mechatronics Engineering
A criterion for the global asymptotic stability and uniqueness of the equilibrium point of uncertain cellular neural networks with delay is presented. The uncertainties are assumed to be norm-bounded. The criterion is computationally efficient, since it is in the form of a linear matrix inequality.
Citation - WoS: 50
Citation - Scopus: 53
Simplified Lmi Condition for Global Asymptotic Stability of Delayed Neural Networks
(Pergamon-elsevier Science Ltd, 2006) Singh, V; Department of Mechatronics Engineering
A linear matrix inequality (LMI) based criterion for the global asymptotic stability of a class of delayed neural networks is presented. The present criterion is a simplified version of the respective LMI based criterion recently given by Cao and Ho. (c) 2005 Elsevier Ltd. All rights reserved.
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; Department of Mechatronics Engineering
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].
Citation - WoS: 34
Citation - Scopus: 42
Stability Analysis of Discrete-Time Systems in a State-Space Realisation With Partial State Saturation Nonlinearities
(Iee-inst Elec Eng, 2003) Kar, H; Singh, V; Department of Mechatronics Engineering
A criterion for the global asymptotic stability of discrete-time systems in a state-space realisation with partial state saturation nonlinearities is presented. The criterion is compared with a previously reported criterion.