This paper presents an efficient 88 line MATLAB code for topology optimization. It has been developed using the 99 line code presented by Sigmund (2001) as a starting point. The original code has been extended by a density filter, and a considerable improvement in efficiency has been achieved, mainly by preallocating arrays and vectorizing loops. A speed improvement with a factor of 100 is achi...

Time-scale modification (TSM) algorithms have the purpose of stretching or compressing the time-scale of an input audio signal without altering its pitch. Such tools are frequently used in scenarios like music production or music remixing. There exists a large variety of different algorithmic approaches to TSM, all of them having their very own advantages and drawbacks. In this paper, we presen...

-The constellation diagram is a representation of a signals modulated by a digital passband modulation scheme It displays the signal as a two-dimensional X-Y plane scatter diagram in the complex plane at symbol sampling instants. In a more abstract sense, it represents the possible symbols that may be selected by a given modulation scheme as points in the complex plane. Measured constellation d...

This paper presents an efficient and compact Matlab code to solve three-dimensional topology optimization problems. The 169 lines comprising this code include finite element analysis, sensitivity analysis, density filter, optimality criterion optimizer, and display of results. The basic code solves minimum compliance problems. A systematic approach is presented to easily modify the definition o...

The true costs of high performance computing are currently dominated by software. Addressing these costs requires shifting to high productivity languages such as Matlab. MatlabMPI is a Matlab implementation of the Message Passing Interface (MPI) standard and allows any Matlab program to exploit multiple processors. MatlabMPI currently implements the basic six functions that are the core of the ...

This toolbox is an implementation of our recently developed dimensionality reduction methods using multidimensional scaling with Bregman divergences, the LeftSammon, RightSammon, LeftExp and RightExp mappings, as well as Step CCA, in Matlab. We use a simple but effective random-walk strategy to select various parameters for the stochastic gradient descent.

1.1. Motivation In the modern development process of automotive embedded software, the graphical executable specification is becoming to take the place of the textual specification and accepted by both the manufactures and suppliers. There are advantages such as easy understanding and communication, fast development with executable specification in modeling and simulation tools, and automatic c...

Software Defined Radio (SDR) switches across various wireless air interfaces by using a programmable and dynamically reconfigurable method and Wideband Code Division Multiple Access (WCDMA) is a promising candidate to be adopted into SDR. We implement WCDMA system in a SDR workbench in Matlab/Octave environment. Two scenarios are considered in this thesis. In non-adaptive scheme, the Channel St...

MATLAB is one of the most popular languages for desktop numerical computations as well as for signal and image processing applic ations. Applying parallel processing techniques to improve performance of MATLAB codes has been the goal of many recent works. Most current frameworks require the user to specify parallelism and/or information regarding type/shap eof the variables, thereby sacri cing ...