This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

Targets and Environment

Channel propagation, radar cross section, sonar target strength, underwater sound channels, Swerling targets, clutter, jammers, object motion

A radar or sonar system simulation requires models for wave propagation, clutter and interference, array and target motion, and target cross-section. The Phased Array System Toolbox™ lets you model free-space signal propagation in monostatic or bistatic scenarios. Alternatively, you can employ simple multipath propagation using a two-ray propagation model. You can model atmospheric attenuation using line-of-sight (LOS) propagation models. These models calculate signal propagation through atmospheric gases, rain, and fog and clouds. All models include range-dependent time delay, phase shift, Doppler shift, and free-space loss. You can also model the target scattering, specifying scattering radar cross sections (RCS) for point-target reflectors for nonpolarized and polarized radiation. The toolbox implements the four standard Swerling target radar cross-section models. In addition, clutter and jammer models are provided. The toolbox supports constant velocity and constant acceleration motion models.

The toolbox supports sonar system simulation by providing multipath propagation models, hydrophone and projector models, underwater noise sources and target strength models. Target strength models let you create nonfluctuating and Swerling fluctuating targets.

  • Targets and Interference
    Model radar cross section, sonar target strength, Swerling targets, clutter, and jammers.
  • Signal Propagation
    Narrowband and wideband free-space propagation, two-ray channel propagation, multipath underwater sound propagation, atmospheric losses, spatial MIMO channels
  • Motion Modeling and Coordinate Systems
    Perform array and target trajectory modeling, coordinate transformations, and compute Doppler shift.

Featured Examples

Was this topic helpful?