SBR Sparse Array Performance with Subarray Orientation and Timing Errors

Kapfer, Robert M.; Krumme, M.A.; Davis, Mark E.

doi:10.1109/radar.2006.1631838

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Much of the early work on ISAT focused on identifying technical requirements, analysis of alternatives, and feasibility studies for an envisioned space radar system architecture referred to as the ISAT Objective System Concept (OSC) [1][2][3][4][5][6][7][8][9][10][11][12]. OSC studies attempted to identify a space radar architecture that could provide persistent global surveillance and ground moving-target identification and tracking capability.…”

Section: Introductionmentioning

confidence: 99%

Overview of the Innovative Space-Based Radar Antenna Technology Program

Lane

Murphey

Zatman

2011

Journal of Spacecraft and Rockets

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accomplished technology development and demonstration toward a 300 m deployable space antenna under the Innovative SpaceBased Radar Antenna Technology program. Risk-reduction activities focused on deployment testing, calibration, structural metrology, and real-time compensation. A 12 m phased-array-fed reflector engineering test unit was tested in a laboratory environment and demonstrated shaping of a single-curved, parabolic-cylinder mesh surface and deployment repeatability. A 12 m engineering test unit using rigidizable-inflatable structural components was also tested, but this approach was more problematic and less robust. Finally, two antenna metrology and compensation engineering test units were tested in a compact range. The results from one were reported. Data showed that the closed-loop system minimized phase error to less than 1=30 of a wavelength, given realistic disturbance inputs.

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Section: Introductionmentioning

confidence: 99%

Overview of the Innovative Space-Based Radar Antenna Technology Program

Lane

Murphey

Zatman

2011

Journal of Spacecraft and Rockets

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show abstract

“…Along Track Interferometric (ATI) Radars have been proposed for both space [2,3,4] and airborne applications [5] to detect very slow moving vehicles and surface phenomena. Two SAR images are simultaneously formed with a baseline between the transmitter and the second aperture.…”

Section: Introductionmentioning

confidence: 99%

Along track interferometry for foliage penetration Moving Target Indication

Kapfer

Davis

2008

2008 IEEE Radar Conference

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Moving Target Indication Radars for detection and track-ing ground vehicles has received significant interest in the Radar literature. However, when the vehicles are moving slowly and in foliage, microwave frequency radars such as X-band are not effective. Foliage Penetration (FOPEN) Radars using ultra high frequency (UHF) synthetic aperture waveforms have demonstrated consistent detection of stationary ground vehicles. In most applications, the vehicles are stationary to support wide angle, high resolution SAR processing. Along Track Interferometry (ATI) has been proposed for space based radars to detect moving targets due to the high velocity of the radar. This study will examine the target and processing requirements to detect slowly moving ground vehicles using ATI approaches. A detailed simulation of the target and clutter phenomenology is carried out to illustrate the effects of internal clutter motion and signal decorrelation effects on minimum discernable velocity.

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Bistatic SAR using illumination from a tethered Ground Moving Target Indication Radar

Davis

Kapfer

2009

2009 IEEE Radar Conference

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SBR Sparse Array Performance with Subarray Orientation and Timing Errors

Cited by 3 publications

References 11 publications

Overview of the Innovative Space-Based Radar Antenna Technology Program

Overview of the Innovative Space-Based Radar Antenna Technology Program

Along track interferometry for foliage penetration Moving Target Indication

Bistatic SAR using illumination from a tethered Ground Moving Target Indication Radar

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