Main Content

Propagation and Channel Models

Site and terrain visualization, propagation model specification (including Longley-Rice), signal strength, signal coverage maps, and static and fading channel models

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 in 3-D.

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.


développer tout

Map Data

addCustomBasemapAdd custom basemap
addCustomTerrainAdd custom terrain data
removeCustomBasemapRemove custom basemap
removeCustomTerrainRemove custom terrain data


showShow site in Site Viewer
hideHide site from Site Viewer
distanceDistance between sites
angleAngle between sites
elevationElevation of site
locationCoordinates at distance and angle from site

Propagation and Visualization

coverageDisplay or compute coverage map
patternDisplay antenna radiation pattern in Site Viewer
sinrDisplay or compute signal-to-interference-plus-noise (SINR) ratio
linkDisplay or compute communication link status
sigstrengthReceived signal strength
raytraceDisplay or compute RF propagation rays
losDisplay or compute line-of-sight (LOS) visibility status
propagationModelCreate RF propagation model
pathlossPath loss of radio wave propagation

Path Loss

cranerainplRF signal attenuation due to rainfall using Crane model
rainplRF signal attenuation due to rainfall
gasplRF signal attenuation due to atmospheric gases
fogplRF signal attenuation due to fog and clouds
fsplFree space path loss
rayplPath loss and phase change for RF propagation ray
buildingMaterialPermittivityPermittivity and conductivity of building materials
earthSurfacePermittivityPermittivity and conductivity of earth surface materials

Channel Modeling

awgnAdd white Gaussian noise to signal
bscBinary symmetric channel
convertSNRConvert SNR values
stdchanConstruct channel System object from set of standardized channel models


winner2.AntennaArrayCreate antenna array
winner2.dipoleCalculate field pattern of half-wavelength dipole
winner2.layoutparsetWINNER II layout parameter configuration
winner2.wimGenerate channel coefficients using WINNER II channel model
winner2.wimparsetWINNER II model parameter configuration

Doppler Characteristics

dopplerConstruct Doppler spectrum structure

Coordinate System Transformations

rangeangleRange and angle calculation
global2localcoordConvert global to local coordinates
local2globalcoordConvert local to global coordinates
cart2sphvecConvert vector from Cartesian components to spherical representation
sph2cartvecConvert vector from spherical basis components to Cartesian components


développer tout


txsiteCreate RF transmitter site
rxsiteCreate RF receiver site
siteviewerCreate Site Viewer
arrayConfigCreate phased array configuration

Propagation Models

FreeSpaceFree space propagation model
RainRain propagation model
GasGas propagation model
FogFog propagation model
CloseInClose-in propagation model
LongleyRiceLongley-Rice propagation model
RayTracingRay tracing propagation model

Propagation Data

propagationDataCreate RF propagation data from measurements
comm.RayCreate RF propagation ray
comm.AWGNChannelAdd white Gaussian noise to input signal
comm.RayTracingChannelFilter signal through multipath fading channel defined by propagation rays
comm.RayleighChannel Filter input signal through multipath Rayleigh fading channel
comm.RicianChannel Filter input signal through multipath Rician fading channel
comm.MIMOChannelFilter input signal through MIMO multipath fading channel
comm.WINNER2ChannelFilter input signal through WINNER II fading channel
comm.gpu.AWGNChannelAdd white Gaussian noise to input signal with GPU
comm.ChannelFilterFilter signal using multipath gains at specified path delays
comm.ThermalNoiseAdd thermal noise to signal


développer tout

Free Space Path LossApply free space path loss to complex signal
AWGN ChannelAdd white Gaussian noise to input signal
SISO Fading ChannelFilter input signal through SISO multipath fading channel
MIMO Fading ChannelFilter input signal through MIMO multipath fading channel
Binary Symmetric ChannelIntroduce binary errors


RF Propagation

Channel Modeling