RF path propagation modeling describes the behavior of electromagnetic radiation from a point of transmission as the signal travels through the surrounding environment. Model RF propagation paths and visualize them on 3-D display maps.
Channel modeling describes the over-the-air environment in communications system links. Analysis of propagation and channel modelling is essential in understanding how electromagnetic waves incur losses from a transmitter to a receiver in different scenarios. Model and visualize noisy SISO and MIMO channels that have Rayleigh, Rician, or WINNER II fading profiles. Atmospheric impairments and multiple Doppler spectrum shapes are also available.
|Add custom basemap|
|Add custom terrain data|
|Remove custom basemap|
|Remove custom terrain data|
|Show site location on map|
|Hide site location on map|
|Distance between sites|
|Angle between sites|
|Elevation of site|
|Location coordinates at a given distance and angle from site|
|Display coverage map|
|Plot antenna radiation pattern on map|
|Display signal-to-interference-plus-noise ratio (SINR) map|
|Display communication link on map|
|Signal strength due to transmitter|
|Plot propagation paths between sites|
|Plot or compute the line-of-sight (LOS) visibility between sites on a map|
|Create RF propagation model|
|RF signal attenuation due to rainfall using Crane model|
|RF signal attenuation due to rainfall|
|RF signal attenuation due to atmospheric gases|
|RF signal attenuation due to fog and clouds|
|Free space path loss|
|Calculate path loss and phase shift for ray|
|Permittivity and conductivity of building materials|
|Permittivity and conductivity of earth surface materials|
|Add white Gaussian noise to signal|
|Binary symmetric channel|
|Construct channel System object from set of standardized channel models|
|Create antenna array|
|Calculate field pattern of half-wavelength dipole|
|WINNER II layout parameter configuration|
|Generate channel coefficients using WINNER II channel model|
|WINNER II model parameter configuration|
|Construct Doppler spectrum structure|
|Range and angle calculation|
|Convert global to local coordinates|
|Convert local to global coordinates|
|Convert vector from Cartesian components to spherical representation|
|Convert vector from spherical basis components to Cartesian components|
|Phased array configuration object|
|Create radio frequency transmitter site|
|Create radio frequency receiver site|
|Create Site Viewer map display for visualizing sites|
|Create RF propagation data container|
|Propagation ray container object|
|Filter signal through multipath fading channel defined by propagation rays|
|Add white Gaussian noise to input signal|
|Filter input signal through multipath Rayleigh fading channel|
|Filter input signal through multipath Rician fading channel|
|Filter input signal through MIMO multipath fading channel|
|Filter input signal through WINNER II fading channel|
|Add white Gaussian noise to input signal with GPU|
|Filter signal using multipath gains at specified path delays|
|Add thermal noise to signal|
Site Viewer basics, basemaps, and troubleshooting.
When you start Site Viewer up on showing a txsite or rxsite object, a check is made to make sure that you have an internet connection to retrieve the default basemap and terrain data.
To download MATLAB® basemaps:In addition, Site Viewer also supports three external basemaps that you can select from the basemap picker.
When to use the different propagation models based on frequency, type, and limitations.
Model channel and RF impairment characteristics.
This example shows how to set the bit energy to noise density ratio (Eb/No) for communication links employing channel coding.
Two links perform error control coding on a signal that has passed through an impairment channel.
Defining a fading channel object and applying it to a signal.
Pass FSK and QPSK signals through a Rayleigh multipath fading channel. Change the signal bandwidths to observe the impact of the fading channel on the FSK spectrum and the QPSK constellation.
Learn about multiple-input multiple-output features of the Communications Toolbox™ software.
Modeling WINNER II channel using the WINNER II Channel Model for Communications Toolbox add-on.