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Double Rayleigh Model freeware
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Double Rayleigh Model

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Added: June 06, 2013 | Visits: 291

BPSK receiver simulation using Spread Spectrum This is a code for simulation of BPSK receiver using Direct Sequence Spread Spectrum. The performnace is evaluated in presence of AWGN and Rayleigh fading. Jakes' Model has been used to obtained coefficients for rayleigh fading.



Platforms: Matlab

License: Freeware Size: 10 KB Download (20): BPSK receiver simulation using Spread Spectrum Download

Added: September 24, 2013 | Visits: 284

Diffraction and Interference Model: Single and Double Slits The Diffraction and Interference Model: Single and Double Slits shows diffraction and interference patterns from a single slit, double sources and double slits. The user can change the source wavelength, slit width, separation and distance between slit and screen. The Diffraction and...





Platforms: Mac

License: Freeware Size: 808.96 KB Download (16): Diffraction and Interference Model: Single and Double Slits Download

Added: July 03, 2013 | Visits: 218

Flutter Analysis Model This model demonstrates how to implement a coupled structural-aerodynamic problem.The wing, otherwise rigid, is allowed to pitch and plunge. The motion of the wing is defined using SimMechanics blocks. The aerodynamic model is a simple, quasi-steady formulation.Dynamic pressure is manipulated by...


Platforms: Matlab

License: Freeware Size: 81.92 KB Download (18): Flutter Analysis Model Download

Added: October 09, 2013 | Visits: 221

Double Slit Wave-Particle Duality Model The Double Slit Wave-Particle Duality Model demonstrates how matter and light display both wave- and particle-like properties in single and double slit experiments. The simulation shows a detector screen placed behind an aperture with one or two open slits. Particles (electrons or photons) pass...


Platforms: Mac

License: Freeware Size: 757.76 KB Download (18): Double Slit Wave-Particle Duality Model Download

Added: June 27, 2013 | Visits: 260

Harmonics and Fourier Series Model The Ejs Harmonics and Fourier Series model displays the sum of harmonics via a Fourier series to yield a new wave. The amplitude of each harmonic as well as the phase of that harmonic can be changed via sliders. In addition, several pre-set functions can be chosen to display. You can modify this...


Platforms: Mac

License: Freeware Size: 1.34 MB Download (17): Harmonics and Fourier Series Model Download

Added: July 02, 2013 | Visits: 219

Falling Slinky Model The Falling Slinky model approximates a slinky using twenty masses connected with light springs. The slinky is suspended from one end and released. Two actions will occur simultaneously when it is released hanging at rest from its equilibrium position - it will fall and it will collapse. What...


Platforms: Mac

License: Freeware Size: 102.4 KB Download (16): Falling Slinky Model Download

Added: November 12, 2013 | Visits: 291

Binomial Distribution Model The EJS Binomial Distribution Model calculates the binomial distribution. You can change the number of trials and probability. You can modify this simulation if you have Ejs installed by right-clicking within the plot and selecting "Open Ejs Model" from the pop-up menu item. The Binomial...


Platforms: Mac

License: Freeware Size: 81.92 KB Download (17): Binomial Distribution Model Download

Added: November 17, 2013 | Visits: 245

Coupled Oscillators and Normal Modes Model The Ejs Coupled Oscillators and Normal Modes model displays the motion of coupled oscillators, two masses connected by three springs. The initial position of the two masses, the spring constant of the three springs, the damping coefficient for each mass, and the driving force and driving force...


Platforms: Mac

License: Freeware Size: 1.35 MB Download (17): Coupled Oscillators and Normal Modes Model Download

Added: July 20, 2013 | Visits: 248

Celestial Globe Model The Ejs Celestial Globe model simulates the Two Sphere Universe theory of the Ancient Greeks. This theory supposes the stars to be fixed on the surface of a Celestial Sphere, with the spherical Earth at the center of this sphere. The simulation shows the motion of Sun and stars in this model, as...


Platforms: Mac

License: Freeware Size: 1.29 MB Download (16): Celestial Globe Model Download

Added: September 23, 2013 | Visits: 301

N-body Orbits Model The Ejs N-body Orbits model displays the dynamics of three to five identical masses orbiting each other subject to Newtonian gravity. The simulation displays the periodic orbital motion of the masses. The initial configuration of the system can be changed via slider. You can modify this...


Platforms: Mac

License: Freeware Size: 1.34 MB Download (18): N-body Orbits Model Download

Added: September 15, 2013 | Visits: 284

Orbiting Mass on a Table 3D Model The Ejs Orbiting Mass on a Table 3D model displays the frictionless dynamics of two masses that are attached via a string through a hole in a horizontal table. Mass m moves on the table in two dimensions while mass M hangs vertically and just moves up and down. The simulation allows displaying...


Platforms: Mac

License: Freeware Size: 1.67 MB Download (19): Orbiting Mass on a Table 3D Model Download

Added: September 11, 2013 | Visits: 250

Magnetic Bar Field Model The EJS Magnetic Bar Field Model shows the field of a bar magnet and has a movable compass that reports the magnetic field values. The bar magnet model is built by placing a group of magnetic dipoles along the bar magnet. You can modify this simulation if you have Ejs installed by right-clicking...


Platforms: Mac

License: Freeware Size: 92.16 KB Download (17): Magnetic Bar Field Model Download

Added: August 19, 2013 | Visits: 211

Duffing Oscillator Model The Ejs Duffing Oscillator model computes the solutions to the non-linear Duffing equation, which reads, x'' + 2?zN*x' - x (1 - x2) = f cos(?Ya*t), where each prime denotes a time derivative. The simulation displays the solution as well as the phase space and Poincare plots, and energy diagram....


Platforms: Mac

License: Freeware Size: 1.37 MB Download (17): Duffing Oscillator Model Download

Added: June 15, 2013 | Visits: 243

Phase Space Plotter Model The Ejs Phase Space Plotter model displays the dynamics of an ensemble of pendula or simple harmonic oscillators in phase space (velocity versus position). Friction is initially set to zero but can be changed via a textbox as can the number of elements in the ensemble. For the pendulum ensemble,...


Platforms: Mac

License: Freeware Size: 1.4 MB Download (17): Phase Space Plotter Model Download

Added: November 05, 2013 | Visits: 226

Lagrange Top Model The Ejs Lagrange Top model displays the motion of a heavy symmetric top under the effect of gravity. The top has an initial angular speed that provides the precessional, nutational, and rotational speeds. The ratio of Lz to Lx can be set via slider and the initial angular position and angular...


Platforms: Mac

License: Freeware Size: 10.24 KB Download (16): Lagrange Top Model Download

Added: November 13, 2013 | Visits: 275

Molecular Dynamics Model The EJS Molecular Dynamics model is constructed using the Lennard-Jones potential truncated at a distance of 3 molecular diameters. The motion of the molecules is governed by Newton's laws, approximated using the Verlet algorithm with the indicated time step. For sufficiently small time steps dt,...


Platforms: Mac

License: Freeware Size: 1.3 MB Download (17): Molecular Dynamics Model Download

Added: October 15, 2013 | Visits: 165

Foucault Pendulum Model The Ejs Foucault Pendulum model displays the dynamics of a Foucault pendulum. The simulation is designed to show the dynamical explanation of why precession of the Foucault pendulum is slower at lower latitudes. The simulation shows simultaneously the motion with respect to the inertial...


Platforms: Mac

License: Freeware Size: 1.05 MB Download (16): Foucault Pendulum Model Download

Added: August 17, 2013 | Visits: 218

Equatorial Coordinates Model The Equatorial Coordinates model displays the position of a star in equatorial (Right Ascension/Declination --- RA/Dec) coordinates. The horizon is shown along with the four cardinal directions (N, E, S, and W). The Latitude slider changes the latitude of the observer which is shown by the change...


Platforms: Mac

License: Freeware Size: 993.28 KB Download (16): Equatorial Coordinates Model Download

Added: October 29, 2013 | Visits: 202

Inertial Oscillation Model The Ejs Inertial Oscillation model displays the motion of a particle moving over the surface of an oblate spheroid. The spheroid is flattened to an ellipsoid of revolution because it is rotating, just as the Earth is flattened because it is rotating. The particle is confined to motion along the...


Platforms: Mac

License: Freeware Size: 1.05 MB Download (16): Inertial Oscillation Model Download

Added: August 11, 2013 | Visits: 226

Equinox Precession Model The EJS Equinox Precession model illustrates the Copernican theory of Earth's orbit around the sun. The top window shows a view from outside the celestial sphere. The simulation shows the moving Earth along with its axis or rotation and the line of sight from Earth, through Sun, to the Celestial...


Platforms: Mac

License: Freeware Size: 1.32 MB Download (16): Equinox Precession Model Download

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