Ultra Wideband Surveillance Radar

Duration 2-day

Ultra Wide Band Surveillance Radar is an emerging technology for detecting and characterizing targets and cultural features for military and geosciences applications. It is essential to have fine range and cross-range resolution to characterize objects near and under severe clutter. This Short Course is divided into two parts.

Part I - Basic Surveillance Radar Design and Technology: (1-day)

The Early History of Battlefield Surveillance Radar: There were some very interesting developments in radar technology that enabled our ability to detect fixed and moving objects in dense clutter. Examples of airborne phased array antennas and UWB radars will be summarized.

Surveillance Radar Target Detection: A summary of the radar range equation and target statistics is presented. Of particular interest is the use of frequency agility and ultra-wide band signals for limiting the statistical variation of target returns.

Surveillance Radar Modes: Analysis for Displaced Phase Center Array, Doppler Beam Sharpening, Ground Moving Rarget Indication are illustrated from early phased array antenna radars.

UWB Phased Array Antenna: Electronically scanned antennas (ESA) are widely used for surveillance of large areas. Wideband waveforms place a significant demand on the ESA design to maintain gain and sidelobe characteristics.

Part II - Advanced Surveillance Radar Architectures: (1 day)

UWB Synthetic Aperture Radar (SAR): A brief description of several UWB surveillance SAR systems will be provided, along with illustrations of the SAR image and fixed object detection capability.

Interferometric SAR Designs: They use of multiple channels for SAR have provided terrain height measurements and improved detection of moving targets with UWB waveforms.

UWB Ground Moving Target Indication: Space time adaptive processing (STAP) has been used for detecting and tracking moving targets in clutter. This section will discuss two approaches for increasing the bandwidth and maintaining geolocation accuracy: wideband STAP and Along Track Interferometry.

Ultra Wideband Frequency Allocation Issues: A summary of worldwide regulation on waveform design and processing for spectrum compliance.

New research in Multi-mode Ultra-Wideband Radar: Illustration for new technologies that have promise for future multimode operation: simultaneous SAR and GMTI in a multichannel radar.