The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
Wusheng Lu - One of the best experts on this subject based on the ideXlab platform.
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roundoff noise minimization for 2 d separable denominator digital Filters using jointly optimal high order error feedback and realization
International Symposium on Circuits and Systems, 2017Co-Authors: Takao Hinamoto, Wusheng LuAbstract:The joint optimization problem of high-order error feedback and realization for minimizing roundoff noise at the Filter Output subject to-scaling constraints for two-dimensional (2-D) separable-denominator digital Filters is investigated. Linear algebraic techniques that convert the problem at hand into an unconstrained optimization problem are explored, and an efficient quasi-Newton algorithm is then applied to solve the unconstrained optimization problem iteratively. Closed-form formulas for fast and accurate gradient evaluation are derived. A numerical example is presented to demonstrate the validity and effectiveness of the proposed technique.
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jointly optimal high order error feedback and realization for roundoff noise minimization in 1 d and 2 d state space digital Filters
IEEE Transactions on Signal Processing, 2013Co-Authors: Takao Hinamoto, Wusheng LuAbstract:Joint optimization of high-order error feedback and state-space realization for minimizing roundoff noise at Filter Output subject to l2-scaling constraints is investigated for one- and two-dimensional state-space digital Filters. Linear algebraic techniques that convert the problems at hand into an unconstrained optimization problem are explored, and an efficient quasi-Newton algorithm is then applied to solve the unconstrained optimization problem iteratively. In this connection, closed-form formulas are derived for fast and accurate gradient evaluation. Finally, case studies are presented to demonstrate that the high-order error feedback does offer much improved performance and that the proposed joint optimization is superior relative to a sequentially optimized system where the state-space coordinate transformation and high-order error feedback matrices are optimized separately.
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jointly optimal high order error feedback and realization for roundoff noise minimization in 2 d state space digital Filters
European Conference on Circuit Theory and Design, 2013Co-Authors: Takao Hinamoto, Wusheng LuAbstract:The joint optimization problem of high-order error feedback and realization for minimizing roundoff noise at Filter Output subject to l2-scaling constraints is investigated for two-dimensional (2-D) state-space digital Filters. Linear algebraic techniques that convert the problem at hand into an unconstrained optimization problem are explored, and an efficient quasi-Newton algorithm is then applied to solve the unconstrained optimization problem iteratively. In this connection, closed-form formulas are derived for fast and accurate gradient evaluation. Finally a numerical example is presented to illustrate the validity and effectiveness of the proposed algorithm.
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joint optimization of high order error feedback and realization for roundoff noise minimization in the fornasini marchesini second model
International Midwest Symposium on Circuits and Systems, 2012Co-Authors: Takao Hinamoto, Wusheng LuAbstract:For two-dimensional (2-D) state-space digital Filters described by the Fornasini-Marchesini second local state-space model, the joint optimization of high-order error feedback and realization for minimizing roundoff noise at Filter Output subject to l 2 -scaling constraints is investigated. We present linear-algebraic techniques that convert the problem at hand into an unconstrained optimization problem, and present an efficient quasi-Newton algorithm to solve the unconstrained optimization problem iteratively, in which closed-form formulas are derived for fast and accurate gradient evaluation. A numerical example is presented to illustrate the utility and effectiveness of the proposed algorithm.
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jointly optimized high order error feedback and realization for roundoff noise minimizaion in state space digital Filters
International Midwest Symposium on Circuits and Systems, 2011Co-Authors: Takao Hinamoto, Wusheng LuAbstract:The joint optimization problem of high-order error feedback and realization for state-space digital Filters to minimize the effects of roundoff noise at the Filter Output subject to l 2 -scaling constraints is investigated. The problem is converted into an unconstrained optimization problem by using linear-algebraic techniques. The unconstrained optimization problem at hand is then solved iteratively by applying an efficient quasi-Newton algorithm with closed-form formulas for key gradient evaluation. Finally, a numerical example is presented to illustrate the utility of the proposed technique.
Takao Hinamoto - One of the best experts on this subject based on the ideXlab platform.
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roundoff noise minimization for 2 d separable denominator digital Filters using jointly optimal high order error feedback and realization
International Symposium on Circuits and Systems, 2017Co-Authors: Takao Hinamoto, Wusheng LuAbstract:The joint optimization problem of high-order error feedback and realization for minimizing roundoff noise at the Filter Output subject to-scaling constraints for two-dimensional (2-D) separable-denominator digital Filters is investigated. Linear algebraic techniques that convert the problem at hand into an unconstrained optimization problem are explored, and an efficient quasi-Newton algorithm is then applied to solve the unconstrained optimization problem iteratively. Closed-form formulas for fast and accurate gradient evaluation are derived. A numerical example is presented to demonstrate the validity and effectiveness of the proposed technique.
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jointly optimal high order error feedback and realization for roundoff noise minimization in 1 d and 2 d state space digital Filters
IEEE Transactions on Signal Processing, 2013Co-Authors: Takao Hinamoto, Wusheng LuAbstract:Joint optimization of high-order error feedback and state-space realization for minimizing roundoff noise at Filter Output subject to l2-scaling constraints is investigated for one- and two-dimensional state-space digital Filters. Linear algebraic techniques that convert the problems at hand into an unconstrained optimization problem are explored, and an efficient quasi-Newton algorithm is then applied to solve the unconstrained optimization problem iteratively. In this connection, closed-form formulas are derived for fast and accurate gradient evaluation. Finally, case studies are presented to demonstrate that the high-order error feedback does offer much improved performance and that the proposed joint optimization is superior relative to a sequentially optimized system where the state-space coordinate transformation and high-order error feedback matrices are optimized separately.
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jointly optimal high order error feedback and realization for roundoff noise minimization in 2 d state space digital Filters
European Conference on Circuit Theory and Design, 2013Co-Authors: Takao Hinamoto, Wusheng LuAbstract:The joint optimization problem of high-order error feedback and realization for minimizing roundoff noise at Filter Output subject to l2-scaling constraints is investigated for two-dimensional (2-D) state-space digital Filters. Linear algebraic techniques that convert the problem at hand into an unconstrained optimization problem are explored, and an efficient quasi-Newton algorithm is then applied to solve the unconstrained optimization problem iteratively. In this connection, closed-form formulas are derived for fast and accurate gradient evaluation. Finally a numerical example is presented to illustrate the validity and effectiveness of the proposed algorithm.
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joint optimization of high order error feedback and realization for roundoff noise minimization in the fornasini marchesini second model
International Midwest Symposium on Circuits and Systems, 2012Co-Authors: Takao Hinamoto, Wusheng LuAbstract:For two-dimensional (2-D) state-space digital Filters described by the Fornasini-Marchesini second local state-space model, the joint optimization of high-order error feedback and realization for minimizing roundoff noise at Filter Output subject to l 2 -scaling constraints is investigated. We present linear-algebraic techniques that convert the problem at hand into an unconstrained optimization problem, and present an efficient quasi-Newton algorithm to solve the unconstrained optimization problem iteratively, in which closed-form formulas are derived for fast and accurate gradient evaluation. A numerical example is presented to illustrate the utility and effectiveness of the proposed algorithm.
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jointly optimized high order error feedback and realization for roundoff noise minimizaion in state space digital Filters
International Midwest Symposium on Circuits and Systems, 2011Co-Authors: Takao Hinamoto, Wusheng LuAbstract:The joint optimization problem of high-order error feedback and realization for state-space digital Filters to minimize the effects of roundoff noise at the Filter Output subject to l 2 -scaling constraints is investigated. The problem is converted into an unconstrained optimization problem by using linear-algebraic techniques. The unconstrained optimization problem at hand is then solved iteratively by applying an efficient quasi-Newton algorithm with closed-form formulas for key gradient evaluation. Finally, a numerical example is presented to illustrate the utility of the proposed technique.
Jagannath Nayak - One of the best experts on this subject based on the ideXlab platform.
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Mathematical model of semiconductor fiber ring laser gyroscope
Journal of Optics, 2017Co-Authors: Arpit Khandelwal, Azeemuddin Syed, Jagannath NayakAbstract:In this paper, we have mathematically modeled and analyzed the composite cavity Semiconductor Fiber Ring Laser for its use as an inertial rotation sensor or gyroscope. The rate equations of Semiconductor Optical Amplifier and the transfer function of other components in the configuration, viz. optical Filter, Output coupler and Y-junction coupler have been considered separately for modelling. The final Output expression shows the effect of these components on the intensity of the beat signal. The frequency of the beat signal intensity is shown to be independent of the parameters of the components, which underlines the advantage of frequency-domain sensing.
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Mathematical model of semiconductor fiber ring laser gyroscope
Journal of Optics (India), 2017Co-Authors: Arpit Khandelwal, Azeemuddin Syed, Jagannath NayakAbstract:© 2016, The Optical Society of India. In this paper, we have mathematically modeled and analyzed the composite cavity Semiconductor Fiber Ring Laser for its use as an inertial rotation sensor or gyroscope. The rate equations of Semiconductor Optical Amplifier and the transfer function of other components in the configuration, viz. optical Filter, Output coupler and Y-junction coupler have been considered separately for modelling. The final Output expression shows the effect of these components on the intensity of the beat signal. The frequency of the beat signal intensity is shown to be independent of the parameters of the components, which underlines the advantage of frequency-domain sensing.
Arpit Khandelwal - One of the best experts on this subject based on the ideXlab platform.
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Mathematical model of semiconductor fiber ring laser gyroscope
Journal of Optics, 2017Co-Authors: Arpit Khandelwal, Azeemuddin Syed, Jagannath NayakAbstract:In this paper, we have mathematically modeled and analyzed the composite cavity Semiconductor Fiber Ring Laser for its use as an inertial rotation sensor or gyroscope. The rate equations of Semiconductor Optical Amplifier and the transfer function of other components in the configuration, viz. optical Filter, Output coupler and Y-junction coupler have been considered separately for modelling. The final Output expression shows the effect of these components on the intensity of the beat signal. The frequency of the beat signal intensity is shown to be independent of the parameters of the components, which underlines the advantage of frequency-domain sensing.
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Mathematical model of semiconductor fiber ring laser gyroscope
Journal of Optics (India), 2017Co-Authors: Arpit Khandelwal, Azeemuddin Syed, Jagannath NayakAbstract:© 2016, The Optical Society of India. In this paper, we have mathematically modeled and analyzed the composite cavity Semiconductor Fiber Ring Laser for its use as an inertial rotation sensor or gyroscope. The rate equations of Semiconductor Optical Amplifier and the transfer function of other components in the configuration, viz. optical Filter, Output coupler and Y-junction coupler have been considered separately for modelling. The final Output expression shows the effect of these components on the intensity of the beat signal. The frequency of the beat signal intensity is shown to be independent of the parameters of the components, which underlines the advantage of frequency-domain sensing.
Azeemuddin Syed - One of the best experts on this subject based on the ideXlab platform.
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Mathematical model of semiconductor fiber ring laser gyroscope
Journal of Optics, 2017Co-Authors: Arpit Khandelwal, Azeemuddin Syed, Jagannath NayakAbstract:In this paper, we have mathematically modeled and analyzed the composite cavity Semiconductor Fiber Ring Laser for its use as an inertial rotation sensor or gyroscope. The rate equations of Semiconductor Optical Amplifier and the transfer function of other components in the configuration, viz. optical Filter, Output coupler and Y-junction coupler have been considered separately for modelling. The final Output expression shows the effect of these components on the intensity of the beat signal. The frequency of the beat signal intensity is shown to be independent of the parameters of the components, which underlines the advantage of frequency-domain sensing.
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Mathematical model of semiconductor fiber ring laser gyroscope
Journal of Optics (India), 2017Co-Authors: Arpit Khandelwal, Azeemuddin Syed, Jagannath NayakAbstract:© 2016, The Optical Society of India. In this paper, we have mathematically modeled and analyzed the composite cavity Semiconductor Fiber Ring Laser for its use as an inertial rotation sensor or gyroscope. The rate equations of Semiconductor Optical Amplifier and the transfer function of other components in the configuration, viz. optical Filter, Output coupler and Y-junction coupler have been considered separately for modelling. The final Output expression shows the effect of these components on the intensity of the beat signal. The frequency of the beat signal intensity is shown to be independent of the parameters of the components, which underlines the advantage of frequency-domain sensing.