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Space-Time Adaptive Processing

DPCA and ADPCA pulse cancelation, sample matrix inversion (SMI) beamforming

Signals received by a phased array are often overwhelmed by interference or background clutter. Clutter is called reverberation in acoustic applications. Phased Array System Toolbox™ algorithms perform space-time adaptive processing (STAP). STAP processing combines temporal and spatial filtering to nullify interfering jammers. You can use STAP processing to detect slow-moving or stationary targets in background clutter.

System Objects

phased.STAPSMIBeamformerSample matrix inversion (SMI) beamformer
phased.DPCACancellerDisplaced phase center array (DPCA) pulse canceller
phased.ADPCACancellerAdaptive DPCA (ADPCA) pulse canceller
phased.AngleDopplerResponseAngle-Doppler response

Blocks

SMI BeamformerSample matrix inversion (SMI) beamformer
DPCA CancellerDisplaced phase center array (DPCA) pulse canceller for a uniform linear array
ADPCA CancellerAdaptive displaced phase center array (ADPCA) pulse canceller for a uniform linear array
Angle Doppler ResponseAngle-Doppler response
Data Cube SlicerSlice a data cube along specified dimensions

Functions

dopsteeringvecDoppler steering vector
val2indUniform grid index

Topics

STAP

Angle-Doppler Response

Create angle-Doppler response maps to detect objects.

Displaced Phase Center Antenna Pulse Canceller

Use displaced phase center antenna (DPCA) pulse cancellation to improve detection in the presence of clutter.

Adaptive Displaced Phase Center Antenna Pulse Canceller

Use adaptive displaced phase center antenna (ADPCA) pulse cancellation to improve detection in the presence of clutter and interference.

Sample Matrix Inversion Beamformer

Use Sample Matrix Inversion (SMI) beamformer to optimally suppress clutter and jammer interference.

Standards

Radar Data Cube

Data cube for radar signal processing

Units of Measure and Physical Constants

Phased Array System Toolbox uses the International System of Units.

Standards and Conventions

This section introduces the concept of baseband signals and defines the local and global coordinate systems used in the toolbox.

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