Space-time adaptive processing
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Space-time Adaptive Processing (STAP) is a signal processing technique most commonly used in radar systems. It involves adaptive array processing algorithms to aid in target detection. Radar signal processing benefits from STAP in areas where interferance is a problem (i.e. ground clutter, jamming, etc.). Through careful application of STAP, it is possible to achieve order-of-magnitude sensitivity improvements in target detection.
STAP involves a two-demensional filtering technique using a phased-array antenna with multiple spatial channels. Coupling multiple spatial channels with pulse-Doppler waveforms lends to the name "space-time." Applying the statistics of the interference enviornment, an adaptive STAP weight vector is formed. This weight vector is applied to the coherent samples received by the radar.
Further reading
- Guerci, J.R., Space-Time Adaptive Processing for Radar, Artech House Publishers, 2003. ISBN 1580533779.
- Klemm, Richard, Principles of Space-Time Adaptive Processing, IEE Publishing, 2002. ISBN 0852961723.
- Klemm, Richard, Applications of Space-Time Adaptive Processing, IEE Publishing, 2004. ISBN 0852969244.
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