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1 WASP-lite Design Review April 15, 2005 Prepared by: Michael Richardson Jason Faulring.

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Presentation on theme: "1 WASP-lite Design Review April 15, 2005 Prepared by: Michael Richardson Jason Faulring."— Presentation transcript:

1 1 WASP-lite Design Review April 15, 2005 Prepared by: Michael Richardson Jason Faulring

2 2 WASP-lite Design Drivers Perform a multispectral mapping mission –Daylight operation –Multispectral = Three VNIR cameras + LWIR camera + Pan sharpening camera –Interchangeable bandpass filters on VNIR cameras Night LWIR mapping mission –One LWIR camera Capable of flying on a Cessna 172 with a 9” camera hole –Challenge is to make as light and compact as possible Relatively inexpensive cost (material <$60K) –Using a high level of COTS hardware

3 3 WASP-lite System Requirements Nominal Operational Altitude: 3000 ft. Nominal Aircraft Speed: 90 knots Collection Duration (all cameras operating): 60 min. Nominal Ground Sample Distance: –Panchromatic Band (sharpening): 0.5 m –Multispectral Bands (radiometric): 1.0 m –Infrared (LWIR): 4.0 m Mapping Accuracy: TBD

4 4 WASP-lite Design Configuration

5 5 WASP-lite Components WASP-lite Panchromatic Sharpening Camera (Qty.=1) Imaging Subsystem Assembly VNIR Panchromatic Radiometric Camera (Qty.=3) LWIR microbolometer Camera (Qty.=1) Integrated IMU/GPS Imaging Subsystem Enclosures Aircraft Interface Mount Electronic Rack Assembly System Computer CameraLink Frame Grabber (Qty.=2) Removable Storage Drive Power Supply Operator Interface 19” Electronics Rack LVDS Frame Grabber Timing Subsystem Cable Assemblies

6 6 WASP-lite Block Diagram

7 7 Detailed Design: Imaging Subsystem Assembly

8 8 WASP-lite Component Design Integrated GPS/IMU –Function: provides pointing information and geolocation during imaging –Manufacturer: BEI Technologies, Inc. –Model Number: C-MIGITS III –Accuracy: Heading: 1 mrad Roll: 1 mrad Pitch: 1 mrad –Size(L x W x H): 3.53 x x 4.75 in. –Weight: 2.4 lbs. –Power: + 28V DC at 18 watts –Operating Temperature: - 40 to +71 o C –Shock: 20g

9 9 WASP-lite Component Design Multispectral Panchromatic Camera –Function: three identical cameras are co-aligned to provide different spectra via interchangeable filters –Manufacturer: Sony –Model Number: XCL-V500 –Sensor: progressive scan, interline CCD Pixel Size: 7.4 X 7.4µm Array Size: 648 X 494 Frame Rate (max): 60 Hz Shutter: ¼ to 1/100,000 sec. –Dynamic Range: 10 bits –Data Output: 0.64MB/image (16bits/pixel) –Output Interface/Control Interface: CameraLink –Optical Interface: C Mount –Size(L x W x H): 1.12 x 1.12 x 1.12 inches –Weight: 0.13 lbs. –Power: + 12V DC at 2 watts –Operating Temperature: -5 to +45 o C –Shock: 70g

10 10 WASP-lite Component Design Panchromatic Sharpening Camera –Function: one cameras are co-boresighted to the other four cameras to provide a higher resolution sharpening band –Manufacturer: Sony –Model Number: XCL-U1000 –Sensor: progressive scan, interline CCD Pixel Size: 4.4 X 4.4µm Array Size: 1628 x 1236 (Output Image: 1600 x 1200) Frame Rate (max): 15 Hz Electronic Shutter: 1/15 to 1/10,000 sec. –Dynamic Range: 10 bits –Data Output: 4MB/image (16bits/pixel) –Output Interface/Control Interface: CameraLink –Optical Interface: C Mount –Size(L x W x H): 1.75 x 2.25 x 3.75 inches –Weight: 0.56 lbs. –Power: + 12V DC at 5.5 watts –Operating Temperature: -5 to +45 o C –Shock: 70g

11 11 WASP-lite Component Design LWIR Camera –Function: one cameras are co-boresighted to the other four cameras to provide a higher resolution sharpening band –Manufacturer: DRS –Model Number: E3500 –Sensor: Uncooled VOx Microbolometer Array Pixel Size: 25.4 X 25.4µm Array Size: 320 X 240 Frame Rate (max): 60 Hz Shutter: fixed at 15 msec. (guess) –Output Interface: 12 bit digital –Communication Interface: RS 232 –Optical Interface: Proprietary mount Focal Length: 11 mm Focal Ratio: f/1 –Size(L x Dia.): 3.54 X 1.73 inches –Weight: 0.27 lbs. –Power: + 6 to + 8 VDC at 1.5 watts –Operating Temperature: -37 to + 49 o C –Shock: not known

12 12 WASP-lite Camera Optics VNIR OpticsInfrared Optics ApplicationRadiometricPan SharpeningLWIR Imaging Manufacturer Schneider DRS Model Cinegon Compact41827 Cinegon Compact11mm Focal Length 8 mm12 mm11mm Focal Ratio (f/N) 1.4 – Camera Interface C mount Proprietary Weight 150g Integrated with Camera Dimensions (H X Dia.) 38.6 X 34mm Integrated with Camera Iris Control Manual None Spectral Bandpass 0.4 – 1.0µm (with no focus correction required) 8 – 12 µm

13 13 Detailed Design: Electronics Rack Assembly

14 14 WASP-lite Component Design System Computer and Data Storage –Function: system computer, frame grabber interface, and mass data storage –Manufacturer: CyberResearch –Chasis Model Number: RBC MX 4U Rack Mount Chasis Backwards Mount Board Interface –Motherboard Processor: 3.4GHz, Intel Pentium 4 SDRAM: 1 GB –Operating System: Windows XP –Data Storage: 40 GB, removable –Size (H x L x D): 7”(4U) x 19” x ?? –Weight: ???? –Power: ???? –Operating Temperature: 5 to +45 o C –Shock: 70g

15 15 Software Design Approach COTS Windows XP OS SDKs from Coreco (MS + Pan cameras) & NI (LWIR camera) to talk to camera & timer hardware Visual C++ to talk to SDK’s, integrate system, compile information, and organize for easy post processing Custom written module to capture and process information from the CMIGITS Nav system (async RS- 232 serial) Multi-Threaded design for speed Flexible to allow ease of adding/subtracting cameras from the system Easy to use GUI targeted for touch panel operation in a very confined cockpit of the aircraft

16 16 Power Supply Subsystem DC-DC converters for +12V & +7V Direct Aircraft power for +28V Power conditioning to smooth out bumps in supply power Fused & remote pendant for pilot/operator control of power Budget: LWIR Camera: 7V VGA Cameras: 12V Pan Camera: 12V Touch Panel: 12V CMIGITS: 28V Computer: 28V (est) - Regulated Power - Power Switch +28VDC (fused) +12VDC (fused) +28VDC Aircraft +6-8VDC (fused)

17 17 Timing Subsystem NI 4 channel timer card CMIGITS NAV 1pps GPS sync FMS System (optional) Line Drivers Capture Card Capture Card Capture Card Trigger Timer card guarantees camera triggers line up with NAV solution (can output at 10Hz) Easily configurable to allow FMS to trigger system in conjunction with CMIGITS

18 18 19” Electronics Rack Enclosure

19 19 Operator Interface Touch screen interface –Function: operator interface for WASP-lite and color LCD monitor for viewing imagery in-flight –Manufacturer: NEC –Model Number: NL10276AC24-02 –Output Interface: Universal Serial Bus (USB) –Input Interface: VGA –Resolution: 1024 x 768 –Size(L x W x D): 11.4”x8.9”x0.7” –Weight: 2.1 lbs. –Power: 12VDC at 14 Watts

20 20 Mechanical Packaging, Integration Approach, and Aircraft Interface

21 21 WASP-lite in 9” Camera Hole 9” Camera Opening

22 22 Sensor Head Enclosure Mount Feet (4 Places) MS Cameras Panchromatic Camera LWIR Camera GPS/IMU GPS/IMU Mount Plate

23 23 Sensor Head Mount Interface Passive Vibration Isolators Aircraft Interface Plate Bolted Interface

24 24 Electronics Rack Assembly System Computer Power Supply Slots for PCI Cards 19” Rackmount Frame, Frame Isolators, and PVC Enclosure

25 25 Integrated WASP-lite System GPS Antenna Camera Head Assembly Operator Interface Electronics Rack Assembly Aircraft Power In (+28VDC)

26 26 Boresight Process Acquire a block of images & EO over control area Convert EO to O,P,K In a fixed LSR coordinate system w/ input boresight angles = 0 Block adjust images using Imagine & GCPs to generate true EO of images Solve for the boresight matrix of each image Find an average set of boresight angles across all images Apply new boresight & regenerate EO in the LSR system Ortho images using new EO in Imagine & check against GCPs for accuracy Repeat for other 4 cameras or utilize Harvey’s projective transform method for registration & register other cameras to the boresighted camera

27 27 System Functional Analysis

28 28 GSD and FOV at 3,000 ft. AGL 12.0 mm Pan Sharpen 4.4 µm 3,000 ft. (914,400 mm) GSD = 0.34 m 8.0 mm Multispectral 7.4 µm 3,000 ft. (914,400 mm) GSD = 0.84 m 11.0 mm LWIR 25.4 µm 3,000 ft. (914,400 mm) GSD = 2.1 m.0044 mm = 12.0 mm GSD 914,400 mm 1600 X m 402 m.0074 mm = 8.0 mm GSD 914,400 mm 648 X m 418 m.0254 mm = 11 mm GSD 914,400 mm 320 X m 504 m

29 29 FOV Comparison at 3,000ft. AGL 1600 X 1200 (0.34 m GSD) 536 m 402 m 648 X 494 (0.84 m GSD) 548 m 418 m 320 X 240 (2.1 m GSD) 672 m 504 m Panchromatic Band Multispectral Band LWIR Band 24 LWIR Pixels 9.5 MS Pixels 6 MS Pixels 32.4 LWIR Pixels GSD Comparison Pan:MS 2.5:1 Pan:IR 6.2:1

30 30 WASP-lite Collection Performance – Framing Mode Assumptions: –Aircraft Platform: Cessna 172 –Altitude: 3,000 ft. –Aircraft Speed: 90 knots (slow) and 130 knots (cruise) Image Collection Mode Boresight Calibration Mode AircraftIn-trackCamera SpeedOverlapFiring Rate 1 90 knots 60%1 frame/3.5 sec 130 knots 60%1 frame/2.5 sec AircraftIn-trackCameraCollectionFramesBytes SpeedOverlapFiring Rate 1 Rate 2 per hourper hour 90 knots 10%1 frame/7.9 sec22,076 acres/hr GB/hr. 130 knots 10%1 frame/5.4 sec31,888 acres/hr GB/hr. Notes: 1 Firing rate is driven by the Pan camera that has the smallest footprint 2 Does not include turning inefficiency

31 31 WASP-lite Collection Performance – Video Mode Assumptions: –Aircraft Platform: Cessna 172 –Altitude: 3,000 ft. Video Mode: Alternative Options Available to Increase Frame Rate: 1.Reduce number of video cameras operating during collection 2.Buffer data during burst mode 3 MS Camera 1 Pan Camera 1 LWIR Camera Disc Drive Maximum Video Output 2 – 3 Frames/sec MB/sec 12 MB/sec (write limited)

32 32 Application Experiments

33 33 RGB Color Imaging with Pan Sharpening Mission: collect high resolution RGB images and have ability to pan sharpen Hardware Configuration: –Three MS Cameras –One Pan Camera –Filter Configuration as shown: Filter Bandpass CameraConfiguration(nm) MS #1Blue MS #2Green MS #3Red PanAR LWIRN/A MS #1 Blue MS #2 Green MS #3 Red Pan Sharpen Pan Sharpened Color Image Color Image Register

34 34 Potassium Emission Line Detection Mission: detect potassium (K) signature from a flaming fire Hardware Configuration: –Two MS cameras –One LWIR camera –Filter Configuration as shown: Data Product(s): Filter Bandpass CameraConfiguration(nm) MS #1On K-line765.5 (FWHM = 2 nm) MS #2Off K-line780.0 (FWHM = 10 nm) MS #3N/AN/A PanAR LWIRNone8,000 – 12,000 MS #1 On K-line MS #2 Off K-line Pan Sharpen LWIR Band Ratio Register Fused Fire Map Register K Band Threshold Map Register

35 35 Polarimetric Imaging Mission: collect multi-state polarized images Hardware Configuration: –Three MS cameras –The Pan Sharpening camera –Filter Configuration as shown: Data Product(s): Filter CameraConfiguration MS #1Linear Polarizer MS #2Linear Polarizer MS #3Circular Polarizer PanAR (400 – 900nm) LWIRN/A MS #1 Linear Polarizer (0 Degrees) MS #2 Linear Polarizer (45 Degrees) MS #3 Circular Polarizer Pan Sharpen I 0 (un-polarized) Fused Image Products S 0 Un-polarized Degree of Linear Polarization (DOLP) Degree of Circular Polarization (DOCP) Degree of Polarization (DOP) Register Combine Stokes Vectors Generate Stokes Vectors S 0 =1/2 I 0 S 1 =MS 1 -1/2 I 0 S 2 =MS 3 -1/2 I 0 Register

36 36 WASP-lite Programmatics

37 37 Budget (material only)

38 38 Schedule


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