Space-Time Adaptive Processing

DPCA and ADPCA pulse cancellation, 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.

Objects

`phased.STAPSMIBeamformer`	Sample matrix inversion (SMI) beamformer
`phased.DPCACanceller`	Displaced phase center array (DPCA) pulse canceller
`phased.ADPCACanceller`	Adaptive DPCA (ADPCA) pulse canceller
`phased.AngleDopplerResponse`	Angle-Doppler response

Blocks

SMI Beamformer	Sample matrix inversion (SMI) beamformer
DPCA Canceller	Displaced phase center array (DPCA) pulse canceller for a uniform linear array
ADPCA Canceller	Adaptive displaced phase center array (ADPCA) pulse canceller for a uniform linear array
Angle Doppler Response	Angle-Doppler response
Data Cube Slicer	Slice data cube along specified dimensions

Functions

`dopsteeringvec`	Doppler steering vector
`val2ind`	Uniform 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
This section introduces the data cube for radar signal processing.
Units of Measure and Physical Constants
Phased Array System Toolbox uses the International System of Units (SI).
Standards and Conventions
This section introduces the concept of baseband signals and defines the local and global coordinate systems used in the toolbox.