Phased Array System Toolbox

Space-Time Adaptive Processing

For suppressing clutter and jammer interference, Phased Array System Toolbox provides several space-time adaptive processing (STAP) algorithms, including:

  • Displaced phase center array (DPCA)
  • Adaptive DPCA
  • Sample matrix inversion (SMI)

Although the SMI algorithm is computationally intensive and typically not a candidate for real-time implementation, it is useful as an ideal reference, against which you can compare other algorithms. An angle-Doppler response tool provides a useful visualization of the overall performance of the output of the various STAP algorithms.

Target obscured by clutter return at 1000 meters. After SMI STAP processing, the clutter return is suppressed and the target return is detectable.

Target (top, blue vertical line) obscured by clutter return at 1000 meters. After SMI STAP processing (bottom), the clutter return is suppressed and the target return is detectable.

Angle-Doppler response for combined clutter and target returns  and SMI weights  used for clutter suppression that render the target detectable.

Angle-Doppler response for combined clutter and target returns (top) and SMI weights (bottom) used for clutter suppression that render the target detectable.

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