Results 151 to 160 of about 2,378,563 (194)

Prediction based direct blind decision feedback equalization

IEEE International Conference on Acoustics Speech and Signal Processing, 2002
We propose a blind decision feedback equalizer (DFE) using second-order statistics (SOS). The proposed blind decision feedback equalization technique does not require channel estimation and obtains the equalizer coefficients directly from SOS of the received signals.
Hwasun Yoo, Sunghwan Ong, Changeon Kang, Daesik Hong   +3 more
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

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

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

ParTool: A Feedback-Directed Parallelizer

2011
We present a tool which gives detailed feedback to application developers on how their programs can be made amenable to parallelization. Also, the tool automatically parallelizes the code for a large number of constructs. Since the tool outputs a parallelized code with OpenMP pragmas, the feedback cycle can be run any number of times till the desired ...
Varun Mishra, Sanjeev K. Aggarwal
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.
David Xinliang Li, Raksit Ashok, Robert Hundt   +2 more
openaire   +1 more source

Feedback-directed specialization of code

Computer Languages, Systems & Structures, 2010
Based on feedback information, a large number of optimizations can be performed by the compiler. This information actually indicates the changing behavior of the applications and can be used to specialize code accordingly. Code specialization is a way to facilitate the compiler to perform optimizations by providing the information regarding variables ...
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

Online feedback-directed optimization of Java

Proceedings of the 17th ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications - OOPSLA '02, 2002
This paper describes the implementation of an online feedback-directed optimization system. The system is fully automatic; it requires no prior (offline) profiling run. It uses a previously developed low-overhead instrumentation sampling framework to collect control flow graph edge profiles. This profile information is used to drive several traditional
Matthew Arnold, Michael Hind, Barbara G. Ryder   +2 more
openaire   +1 more source

Virtual reference feedback tuning: a direct method for the design of feedback controllers

Automatica, 2002
The authors present a design plant of a controller for an unknown plant based on input/output measurement.
M. Campi, A. Lecchini, SAVARESI, SERGIO MATTEO   +2 more
openaire   +3 more sources