Based on a new approach to constrained optimization, an efficient technique for the generation of useful tradeoff information is presented. The method described can be used to predict the tradeoff curve over quite a l...
详细信息
Based on a new approach to constrained optimization, an efficient technique for the generation of useful tradeoff information is presented. The method described can be used to predict the tradeoff curve over quite a large range of the performances involved. The prediction range can be extended by introducing more optimizations at appropriate points within the range of interest. This method can also serve as a facility for identifying realistic (e.g., preferred) components by providing the corresponding change in the design variables.< >
A semi-random searching algorithm is presented. This algorithm can be used for global optimization problems which can reduce the number of objective function evaluations significantly via a deterministic criterion and...
详细信息
A semi-random searching algorithm is presented. This algorithm can be used for global optimization problems which can reduce the number of objective function evaluations significantly via a deterministic criterion and can find a global optimum via a stochastic criterion. The utility of this algorithm is demonstrated by several numerical examples.< >
Optimum autopilot designs are presented for bank-to-turn CLOS (BTT) guidance. BTT is capable of producing higher lift-to-drag ratio. A linear quadratic optimal technique is used for the design of the roll and pitch au...
详细信息
Optimum autopilot designs are presented for bank-to-turn CLOS (BTT) guidance. BTT is capable of producing higher lift-to-drag ratio. A linear quadratic optimal technique is used for the design of the roll and pitch autopilot. Simulation results have demonstrated the improvements in control with the linear quadratic optimal design.< >
The design of high-frequency GaAs analog sampled data systems using switched capacitor circuit techniques is reviewed including op-amp and switch design and optimization of the circuit for maximum clock-rate. A second...
详细信息
The design of high-frequency GaAs analog sampled data systems using switched capacitor circuit techniques is reviewed including op-amp and switch design and optimization of the circuit for maximum clock-rate. A second order switched capacitor bandpass filter example with high precision measured response characteristics for a clock-rate of 500 MHz is discussed. Possible op-amp and switch designs to allow clock-rates around 1 GHz are presented.< >
GaAs MMIC design techniques and technology can only be accepted if adequate circuit performance is obtained, including wide bandwidth and good linearity. It is shown that the cross-coupled MESFET pair can be viewed in...
详细信息
GaAs MMIC design techniques and technology can only be accepted if adequate circuit performance is obtained, including wide bandwidth and good linearity. It is shown that the cross-coupled MESFET pair can be viewed in a rather general way with the advantage that it facilitates implementation of a whole range of interesting linear circuit building blocks, potentially useful for MMIC applications, including linearized amplifiers, signal splitters, signal combiners, circulators and tunable filters.< >
An interactive filter design program suitable for both nonexperts and experts is described. A system library provides the necessary functionality for most design problems. Its language basis allows extensibility for e...
详细信息
An interactive filter design program suitable for both nonexperts and experts is described. A system library provides the necessary functionality for most design problems. Its language basis allows extensibility for expert users. Examples of code to generate biquads which are automatically paired, ordered, and scaled for dynamic range, and to determine capacitor-ratios for switched-capacitor biquads are provided to illustrate filtorX's potential.< >
The authors propose a novel yield optimization algorithm for IC design. To design a practical yield optimization system, two efforts must be made. One is to get a suitable convergence criterion, the other is to propos...
详细信息
The authors propose a novel yield optimization algorithm for IC design. To design a practical yield optimization system, two efforts must be made. One is to get a suitable convergence criterion, the other is to propose an efficient optimization method, by which one can reach the maximum yield point as soon as possible. A convergence criterion based on sequential tests of a hypothesis is presented. This algorithm was implemented in a CADS (computer-aided design system). Applications of this algorithm show its high efficiency.< >
With the coming of age of CAD workstations based on parallel hardware and the increasing need to accelerate CAD tools, there is a demand to exploit parallelism on general-purpose parallel hardware to achieve speedup. ...
详细信息
With the coming of age of CAD workstations based on parallel hardware and the increasing need to accelerate CAD tools, there is a demand to exploit parallelism on general-purpose parallel hardware to achieve speedup. Hence, a novel VLSI routing framework was investigated for a parallel CAD workstation.< >
A test algorithm and design scheme are proposed for a built-in self testing technique for functional faults in semiconductor random access memories. The test algorithm detects stuck-at and pattern sensitive faults ove...
详细信息
A test algorithm and design scheme are proposed for a built-in self testing technique for functional faults in semiconductor random access memories. The test algorithm detects stuck-at and pattern sensitive faults over a neighborhood of nine cells. An n-bit memory is composed of p square sub-arrays, and this algorithm takes 2310 (n/p)/sup 1/2/ testing cycles. The row address generator, test pattern generator, parallel pattern loader, and parallel data comparator are added to the conventional RAM circuits for the built-in self testing function.< >
For pt.I see ibid., p.2999-3002 (1991). Key circuit techniques are developed for the modification of high frequency, transconductor/multiplier circuit building blocks. A semi-nonlinear analysis technique is developed ...
详细信息
For pt.I see ibid., p.2999-3002 (1991). Key circuit techniques are developed for the modification of high frequency, transconductor/multiplier circuit building blocks. A semi-nonlinear analysis technique is developed and a novel technique for cascoding such circuits is presented. The techniques are illustrated by application to a four-quadrant analog multiplier.< >
暂无评论