Technical University of Denmark GISMO Radar S Gogineni

Technical University of Denmark GISMO Radar S. Gogineni, C. Allen, F. Rodriguez, J. Ledford, A. Hock, K. Marathe, V. Jara and C. Leuschen

Outline • • • Agenda System Status Improvements Procedures Plans Schedule

Agenda

System • System along with spares is ready for deployment • Improvements – Range sidelobes reduction techniques – Shielding for Laser noise – Accelerometers • RF bandwdith – 20 MHz at 150 MHz – 30 MHz at 450 MHz

Range sidelobes • No one has obtained range sidelobes less than 60 d. B (open literature) • We developed a technique to obtain sidelobes – <75 d. B at 150 MHz – < 60 d. B at 450 MHz

Range sidelobes– Delay line

Range sidelobes— Transmitter

Shielding box Design and Construction of a box to shield the Laser

Accelerometers Acquired accelerometers Developed a data acquisition system Accelerometers to be mailed to WFF on Wednesday

Schedule • • Arrive in WFF on August 16 Installation on August 17 and 20 Test flights on August 22 -24 Departure September 4

Procedures • Radar is turned on only after the flight engineer indicates status of power and go ahead from Gogineni or Fernando • Problem: – Discuss and Analyze the problem – Delay or cancel the mission until the problem is resolved • Spares are handled carefully

Plans Calibration document Delay line calibration before and after each flight Calibration over a smooth target

Summary Radar is ready for data collection Understood what caused the failure and developed back-up as well as trouble-shooting procedures system improvements are made