MO3.L09 - THEORETICAL AND PRACTICAL DESIGN CONSIDERATIONS FOR A SMALL, MULTI-BAND SAR: THE SLIMSAR

Theoretical and Practical Design Considerations for a Small, Multi-Band SAR: The SlimSAR 26 July 2010 Evan Zaugg, Matthew Edwards, and Alex Margulis ARTEMIS Inc. Hauppauge, NY

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction: Using SAR on a Small UAS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction: The SlimSAR Solution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Table 1: SlimSAR Specifications Frequency Bands L-band / X-band / UHF / + Bandwidth / Resolution Variable 660 MHz / 23 cm Transmit Power 25 W Operational Altitude 1000-6000 ft (AGL) Radar Weight < 10 lbs Power Consumption < 150 W

History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The NRL UAS SAR System (NuSAR) ,[object Object],[object Object],[object Object],X-Band NuSAR Image: The Bear River and I-15 North of Brigham City, Utah The NuSAR L-band RF Table 2: NuSAR Specifications Frequency Bands L-band / X-band Bandwidth / Resolution Variable 500 MHz / 30 cm Transmit Power 25 W Operational Altitude 2500-6000 ft (AGL)

MicroASAR ,[object Object],[object Object],[object Object],The entire MicroASAR Table 3: MicroASAR Specifications MicroASAR image of Arctic sea ice from CASIE-09 – see paper 3562 in poster area H on Thursday Frequency Band C-Band Bandwidth / Resolution Variable 200 MHz / 75 cm Transmit Power 1 W Operational Altitude 1000-5000 ft (AGL) Weight 5 lbs

System Design Methodology ,[object Object],[object Object],[object Object],[object Object],Antennas mounted under the belly of the test bed SAR equipment installed in the test bed NuSAR-B MicroASAR Computer UPS IMU

System Design Methodology ,[object Object],[object Object],[object Object],[object Object],[object Object],A Cessna O-2 Skymaster, our test bed aircraft “Surf Angel” on the runway at Brigham City, Utah

SlimSAR System Design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Example illustration of the SlimSAR and all the supporting subcomponents in a single pod-mount package ,[object Object]

Multiple Operational Frequency Bands Using Block-Conversion ,[object Object],[object Object],[object Object],[object Object],[object Object]

Variable Downconversion LO Enables Flexibility in Operating Frequency ,[object Object],[object Object],[object Object],[object Object]

Deramp Mode The received signal is mixed with a time-delayed copy of the transmit signal. In the resulting signal, targets at a certain range are mapped to a single frequency. Spectrogram of deramped signal ,[object Object],[object Object],[object Object]

System Specifications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System Performance Trade-offs and Flexibility ,[object Object],[object Object],[object Object],[object Object]

Sample Image Products ,[object Object],[object Object],[object Object]

[object Object],L-Band HH L-Band VV Snohomish River South of Everett, WA C-Band MicroASAR

L-band Sample Image Products ,[object Object],North of Spanish Fork, UT

[object Object],North of Spanish Fork, UT – 85 MHz L-Band SlimSAR

North of Spanish Fork, UT – 240 MHz X-Band SlimSAR

Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MO3.L09 - THEORETICAL AND PRACTICAL DESIGN CONSIDERATIONS FOR A SMALL, MULTI-BAND SAR: THE SLIMSAR

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (20)

Similar to MO3.L09 - THEORETICAL AND PRACTICAL DESIGN CONSIDERATIONS FOR A SMALL, MULTI-BAND SAR: THE SLIMSAR

Similar to MO3.L09 - THEORETICAL AND PRACTICAL DESIGN CONSIDERATIONS FOR A SMALL, MULTI-BAND SAR: THE SLIMSAR (20)

More from grssieee

More from grssieee (20)

MO3.L09 - THEORETICAL AND PRACTICAL DESIGN CONSIDERATIONS FOR A SMALL, MULTI-BAND SAR: THE SLIMSAR