With the extensive use of agent-based modeling and simulation, there are many agent-based platforms available. The objective of this paper is to compare 3 agent-based platforms: NetLogo, Repast, and Cormas based on the results of the simulation obtained from the same set of experimental scenarios. For this purpose, agent-based SIR model is chosen to study the pattern of the spread of an infecti...

We present an approach to particle image velocimetry based on optical flow estimation subject to physical constraints. Admissible flow fields are restricted to vector fields satifying the Stokes equation. The latter equation includes control variables that allow to control the optical flow so as to fit to the apparent velocities of particles in a given image pair. We show that when the real unk...

The distortion from massive MIMO (multiple-input– multiple-output) base stations with nonlinear amplifiers is studied and its radiation pattern is derived. The distortion is analyzed both in-band and out-of-band. By using an orthogonal Hermite representation of the amplified signal, the spatial crosscorrelation matrix of the nonlinear distortion is obtained. It shows that, if the input signal t...

Aero-optical environment of the supersonic flow in Trisonic Gasdynamic Facility (TGF) wind tunnel at Wright-Patterson AFB was experimentally measured using a high-speed wavefront sensor. Temporallyand spatially-resolved wavefronts were collected at a range of Mach numbers between 1.5 and 3.0 and the range of Reynolds numbers between 1 and 4 million per foot. Several data reduction techniques, i...

The cross-correlation between the China Securities Index 300 (CSI 300) index futures and the spot markets based on high-frequency data is discussed in this paper. We empirically analyze the cross-correlation by using themultifractal detrended cross-correlation analysis (MF-DCCA), and investigate further the characteristics of asymmetry, frequency difference, and transmission direction of the cr...

Robust feature for speaker identification in noisy environments is proposed. This method is inspired by the human binaural auditory system. A pair of microphones is used to replicate human ears in the processing. Crosscorrelation processing is taken of the microphone outputs after Gammatone bandpass filtering, rectification and compression. ICA is then applied to the real cepstrum of the correl...

This research aims, ultimately, to develop a system for the objective evaluation of spatial impression, incorporating the finding from a previous study that head movements are naturally made in its subjective evaluation. A spherical binaural capture model, comprising a head-sized sphere with multiple attached microphones, has been proposed. Research already conducted found significant differenc...

Spread-spectrum communication, with its inherent interference attenuation capability, has over the years become an increasingly popular technique for use in many different systems. They have very beneficial and tempting features, like Antijam, Security, and Multiple accesses. This thesis basically deals with the pseudo codes used in spread spectrum communication system. The cross-correlation an...

Three dimension (3D) Multiple Input and Multiple Output (MIMO) with massive antenna elements, due to the advantage of using elevation domain than 2D MIMO, is regarded as a promising technique for the fifth generation (5G) mobile communication systems. This makes the channel characteristics of elevation domain as a basic requirement for the 5G channel model. In this paper, we conducted a 3D MIMO...

Microphone arrays are widely used to detect, locate, and track a stationary or moving speaker. The first step is to estimate the time delay, between the speech signals received by a pair of microphones. Conventional methods like generalized crosscorrelation are based on the spectral content of the vocal tract system in the speech signal. The spectral content of the speech signal is affected due...