Phased Array System Toolbox

Target and Environment Modeling

Target Modeling

You can model targets as point reflectors, which are principally defined by the radar cross section (RCS) or the RCS matrix if polarization is considered. Phased Array System Toolbox target models support the following target types:

  • Nonfluctuating RCS models (Swerling 0 or 5)
  • Fluctuating RCS models (Swerling 1–4)

With the system toolbox you can model more complex, distributed targets by creating a collection of distributed point reflectors. You can also model target motion by specifying the appropriate dynamics, such as initial position and velocity.

Environment Modeling

The system toolbox includes free-space environment models that simulate one-way or two-way propagation delays. It models both time delay and phase shift incurred during propagation. One-way propagation is useful for modeling bistatic systems. Two-way propagation enables you to model monostatic systems. You can model user-specified complex models with MATLAB algorithms. Alternatively, you can integrate third-party and proprietary environment models with the system toolbox’s environment model.

The system toolbox also provides a barrage-jammer model to generate a wideband interference signal with user-specified radiated power. You can use multiple jammers to model complex electromagnetic environments.

The system toolbox offers a constant gamma clutter model you can use to generate surface clutter from land or sea. The surface is divided into small patches during the simulation, and the responses from patches are assembled at the end to form the clutter echo. You can accelerate the clutter simulation using GPUs (requires Parallel Computing Toolbox™).

Next: Spatial Signal Processing

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Modeling and Simulating Radar Systems Using MATLAB and Simulink

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