18,297 research outputs found
Analog, hybrid, and digital simulation
Analog, hybrid, and digital computerized simulation technique
Hybrid computer Monte-Carlo techniques
Hybrid analog-digital computer systems for Monte Carlo method application
A bibliography on parallel and vector numerical algorithms
This is a bibliography of numerical methods. It also includes a number of other references on machine architecture, programming language, and other topics of interest to scientific computing. Certain conference proceedings and anthologies which have been published in book form are listed also
An Algebraic Framework for the Real-Time Solution of Inverse Problems on Embedded Systems
This article presents a new approach to the real-time solution of inverse
problems on embedded systems. The class of problems addressed corresponds to
ordinary differential equations (ODEs) with generalized linear constraints,
whereby the data from an array of sensors forms the forcing function. The
solution of the equation is formulated as a least squares (LS) problem with
linear constraints. The LS approach makes the method suitable for the explicit
solution of inverse problems where the forcing function is perturbed by noise.
The algebraic computation is partitioned into a initial preparatory step, which
precomputes the matrices required for the run-time computation; and the cyclic
run-time computation, which is repeated with each acquisition of sensor data.
The cyclic computation consists of a single matrix-vector multiplication, in
this manner computation complexity is known a-priori, fulfilling the definition
of a real-time computation. Numerical testing of the new method is presented on
perturbed as well as unperturbed problems; the results are compared with known
analytic solutions and solutions acquired from state-of-the-art implicit
solvers. The solution is implemented with model based design and uses only
fundamental linear algebra; consequently, this approach supports automatic code
generation for deployment on embedded systems. The targeting concept was tested
via software- and processor-in-the-loop verification on two systems with
different processor architectures. Finally, the method was tested on a
laboratory prototype with real measurement data for the monitoring of flexible
structures. The problem solved is: the real-time overconstrained reconstruction
of a curve from measured gradients. Such systems are commonly encountered in
the monitoring of structures and/or ground subsidence.Comment: 24 pages, journal articl
Computing aspects of problems in non-linear prediction and filtering
Imperial Users onl
Solving Partial Differential Equations with Monte Carlo / Random Walk on an Analog-Digital Hybrid Computer
Current digital computers are about to hit basic physical boundaries with
respect to integration density, clock frequencies, and particularly energy
consumption. This requires the application of new computing paradigms, such as
quantum and analog computing in the near future. Although neither quantum nor
analog computer are general purpose computers they will play an important role
as co-processors to offload certain classes of compute intensive tasks from
classic digital computers, thereby not only reducing run time but also and
foremost power consumption.
In this work, we describe a random walk approach to the solution of certain
types of partial differential equations which is well suited for combinations
of digital and analog computers (hybrid computers). The experiments were
performed on an Analog Paradigm Model-1 analog computer attached to a digital
computer by means of a hybrid interface. At the end we give some estimates of
speedups and power consumption obtainable by using future analog computers on
chip.Comment: 9 pages, 7 figures. Proceeding for the MikroSystemTechnik Kongress
2023 (VDE Verlag MST Kongress 2023
Progress of analog-hybrid computation
Review of fast analog/hybrid computer systems, integrated operational amplifiers, electronic mode-control switches, digital attenuators, and packaging technique
Computer-aided circuit analysis Annual report, May 15, 1965 - May 14, 1966
Research on digital computer aided analysis of electric circuit
- …