Results 251 to 260 of about 4,702,853 (289)

DIRECT FEEDBACK IN AUTOMATA NETWORKS

IFAC Proceedings Volumes, 2005
Abstract This paper investigates the problem posed by direct feedback in automata networks. Such a feedback introduces a direct instantaneous depending of the input of a system upon itself through a signal path within the network. In continuous system theory such a feedback yields an algebraic loop, which may render the overall system ill-posed.
Jörg Neidig, Jan Lunze
openaire   +1 more source

A high-directivity microstrip directional coupler with feedback compensation

2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278), 2003
A new directivity-enhancement method for a microstrip directional coupler is presented. The method utilizes feedback elements between the collinear ports of the parallel-line coupler to generate an isolation zero at the desired frequency. The closed-form equations for designing such compensating elements are developed.
null Jia-Liang Chen, null Sheng-Fuh Chang, null Chain-Tin Wu   +2 more
openaire   +1 more source

Robot visual servoing by direct image feedback

1999 European Control Conference (ECC), 1999
This paper analyzes the robot hand-eye coordination from the view point of integration of vision and control. A new scheme of direct image feedback control is proposed. It compares the real time sampled image with the desired one and forms an error image.
Ping Jiang 0001, Rolf Unbehauen
openaire   +1 more source

The Direct Synthesis of Compensators for Nonlinear Feedback Systems

IFAC Proceedings Volumes, 1983
Abstract A computer method is devised for the direct time domain synthesis of linear compensators for feedback systems containing a single, bounded nonlinearity. A linear equivalent gain is first defined to represent the nonlinearity over a specified range of input signals and the nonlinear error function so generated is used to impose bounds on the ...
J.O. Gray, D. Valsamis
openaire   +1 more source

Feedback-directed thread scheduling with memory considerations

Proceedings of the 16th international symposium on High performance distributed computing, 2007
This paper describes a novel approach to generate an optimized schedule to run threads on distributed shared memory (DSM) systems. The approach relies upon a binary instrumentation tool to automatically acquire the memory sharingrelationship between user-level threads by analyzing their memory trace.
Song, Fengguang, Moore, Shirley, Dongarra, Jack   +2 more
openaire   +1 more source

Feedback directed optimization

1990
Optimization is a very important part of the design process. There are few design problems where concerns for either cost, quality, design time, etc., are not important. A great deal of time and design effort is spent on determining how to generate a solution that is optimized for a particular set of criteria, e.g., cost or time.
openaire   +1 more source

Feedback directed modification of designs

Sixth Conference on Artificial Intelligence for Applications, 2002
Feedback-directed modification, a technique for efficiently improving the solution to a structure-sharing problem, is discussed. This technique uses an analysis of the solution to effect structural modifications to reduce resource usage. Efficiency is obtained through: the reuse of the previous solution and the addition of constraints to prevent ...
openaire   +1 more source

Lightweight feedback-directed cross-module optimization

Proceedings of the 8th annual IEEE/ACM international symposium on Code generation and optimization, 2010
Cross-module inter-procedural compiler optimization (IPO) and Feedback-Directed Optimization (FDO) are two important compiler techniques delivering solid performance gains. The combination of IPO and FDO delivers peak performance, but also multiplies both techniques' usability problems.
Xinliang David Li, Raksit Ashok, Robert Hundt   +2 more
openaire   +1 more source

Direct Field-Feedback Control

2018
With the rotor dynamics of PMSMs presented in Chap. 2 (Sect. 2.2), the conventional control methods for controlling the multi-DOF orientation of a PMSM are introduced at the beginning of this chapter.
Kun Bai, Kok-Meng Lee
openaire   +1 more source

Directives and Statistics Feedback

2017
In 11g there was a feature called Cardinality Feedback. This reoptimized (hard parsed) a query if the Cardinality Estimate of the final result was more than a certain factor out from the actual result. This was a nice simple feature that was easy to understand. If you saw this note at the end of an execution plan, you knew that Cardinality Feedback had
openaire   +1 more source