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Space-Time Adaptive Processing for Frequency-Diverse Distributed Aperture Radars

Space-Time Adaptive Processing for Frequency-Diverse Distributed Aperture Radars

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In this chapter a distributed array of radar apertures is consider to determine the presence of a target within a chosen region of space. The overall detection capability is limited by interference. This interference may be caused by the radar signal itself, e.g., clutter or by electronic counter-measures (ECM) such as jamming. The interference is far stronger than any potential target signal and, therefore, traditional non-adaptive techniques are inadequate for reliable detection. Unlike a traditional array of co-located sensors, each element in the distributed aperture can transmit at its own center frequency. This allows for each element in the aperture to process the signals over transmissions independently and without mutual interference.

Inspec keywords: radar clutter; object detection; radar signal processing; electronic countermeasures; sensors; space-time adaptive processing; electromagnetic interference

Other keywords: radar signal; electronic counter-measures; clutter; colocated sensors; distributed aperture; frequency-diverse distributed aperture radar; interference; ECM; jamming; target detection; space-time adaptive processing

Subjects: Radar equipment, systems and applications; Electromagnetic compatibility and interference; Sensing devices and transducers; Signal processing and detection

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