Atch 1- JSIS_FOC_VIS_Imager_Spec_20220107.docx

Attachment 1:

EQUIPMENT SPECIFICATION

FOR

JSIS FOC HIGH SPEED VISIBLE IMAGER

ARNOLD ENGINEERING DEVELOPMENT COMPLEX

ARNOLD AIR FORCE BASE, TN 37389-9998

(This Page Intentionally Left Blank)

15412-19-NNNN NOT SENSITIVE

Table of Contents

Table of Contents | Page 1

Scope This specification defines the Government’s requirements for a minimum of two (2) and up to twelve (12) High Speed Visible wavelength band Imaging Systems (HSVI). These instruments will form a part of a complete multi-spectral imaging system known as the Joint Standard Instrumentation Suite (JSIS).

JSIS includes ultraviolet through infrared imagers, radiometers, spectrometers, and other supporting equipment. As part of the JSIS concept of operations, these instruments must be installed on open-air tripods in remote unmanned locations (not pristine laboratory conditions), operated remotely over wired or wireless networks, and reliably produce data that is time synchronized with the other disparate JSIS instrumentation systems. The requirements addressed below arise from this concept of operations.

A table summarizing the instrument technical requirements is provide in Appendix A.

Applicable Documents Government Documents The Arnold Engineering Development Center/ Advanced Missile Signature Center "Standard Archive Format," Version 6.0, Revised: 2001 August 09.

Available at: https://media.defense.gov/2017/Jul/05/2001773313/-1/-1/1/AFD-170705-705-005.PDF.

Non-Government Documents National Electrical Manufacturers Association (NEMA) Enclosure Types Document.

Available at: https://www.nemaenclosures.com/enclosure-ratings/nema-rated-enclosures.html.

Requirements Provide a HSVI instruments to meet the spectral response requirements from 380nm to 1000nm wavelength spectral region. These HSVI will be operated by the Government to obtain scene counts directly proportional to the scene radiance (W/m2/sr).

Instrument Characteristics Spectral Coverage: The spectral HSVI system shall be monochrome and shall have a smooth spectral response within 380 nm to 1000 nm. The imager will have the ability to mount bandpass optical filters to the lens and operate at a minimum of 575-625 nm and 762.5-790 nm spectral range. The Government will use a 50mm focal length fixed focal length lens, of equal or better performance to a Canon EOS L-series, and the 575-625 nm and 762.5-790 nm bandpass filters, for Government acceptance testing.

Detector Array: The HSVI will consist of 10 µm pixel size with detector electronics providing a minimum of 12-bit digital output. The sensor shall utilize a global shutter integration. The integration time shall be independent of the frame rate and shall be adjustable to 10 microseconds.

Geometric Fill Factor: The active pixel area to total pixel area shall be at least 70%.

Detector Resolution: The FPA of the imaging system shall have a minimum of 1920 horizontal by 1080 vertical detector pixels.

Frame Rate: The imaging system shall have a frame rate of greater than or equal to 2000 frames/sec from the full resolution FPA. Data from the array shall be acquired as a snap-shot.

Frame Record Length: The imaging system shall be capable of recording full FPA at maximum frame rate, as defined in Sections 3.1.4 and 3.1.5, respectively, for at least 12 seconds. Recordings as short as 2 seconds shall be supported.

Dynamic Range: Single frame dynamic range shall be at least 55 dB. Dynamic range is defined as the ratio of the light level at which saturation occurs to the minimum measurable light level.

Sensor Electronics Time Stamp: The instrument’s internal clock shall provide for the ability to synchronize with an externally connected IRIG B AM time signal and encode each sample with a time stamp accurate within 1 ms or less.

Windowing: The instrument shall provide for windowing of the focal plane to enable higher frame rates at lower spatial coverage. Digitized pixel data shall be collected for every pixel in the windowed array.

Data Storage: The instrument shall provide the capability to record full rate, full bit-depth resolution binary data directly to memory on the sensor head and shall provide a capability for retrieving this data from the sensor head via Ethernet. The on-head memory can be volatile or non-volatile. If the memory is non-volatile, it shall be removable, use an industry-standard form factor and interface, and not require any proprietary media.

Analog/Digital Output: The instrument shall provide the capability to stream NTSC video or Serial Digital Interface (SDI) output over BNC coax cable.

Performance Bad Pixels: No more than 1% of all FPA pixels shall be bad; 99% shall be correctable and operable pixels with no adjacent bad pixels.

Radiometric Calibration and Accuracy: The purpose of these imagers is to measure the absolute radiance of the scene; therefore, the HSVI and acquisition system shall have the capability to operate in a mode that shall not apply any qualitative adjustments to the scene-measured counts. Scene counts directly proportional to the scene radiance (W/m2/sr) shall be obtained from collected images (i.e. the “calibration curve”) and shall be capable of accuracy to within ±5% of source radiance within the two desired bands with unity-response bandpass filters installed. See Table 1.

Radiometric Repeatability: Raw, uncorrected sensor counts (1-4096) shall be repeatable within ±2% of full-scale when presented with a source at the design radiance in the two desired bands. See Table 1.

Radiometric Stability: Calibration stability is measured by pixel digital channel output vs. time for a constant input source radiance. Within the instrument ambient operational and wavelength range, each pixel of the focal plane array shall have a stability of +/-5% when presented with a source at the design radiance for long-term calibrations (two-week minimum between imager internal shutter-closed dark offset) in the two desired bands. See Table 1.

Radiometric Sensitivity: The imagers shall deliver a noise-equivalent radiance (NER) no greater than 0.85 and 1.8 W/m2/sr in each band when presented with a flux equal to the design radiance and under the following conditions: f/1.4 50 mm lens, 1.8 µs exposure, and a target solid angle of 2.5E-04 sr. See Table 1.

Table 1 - Required Radiances (W/m2/sr)

Noise Equivalent Radiance (while at Design Level)

Optical Lens: The imager shall be compatible with lenses (Canon EOS compatible) with fixed focal lengths of 17 to 200 mm. A lens mount kit for Canon lenses shall be included with each imager.

The imager shall include a shutter internal to the instrument body for the purpose of manual and automatic non-uniformity corrections (NUCs).

General Power Supply: The instrument power requirement shall be self-contained and external power accessory, if required, shall be supplied with each unit.

Operating Voltage: The instrument power requirements shall conform to 120VAC ± 10% at 60Hz ± 3 Hz with a maximum current of 5 amperes.

Electromagnetic Compatibility: The instrument shall be compliant with CE or FCC (Part15) regulations for emissions (Industrial equipment class), or equivalent.

Ambient Operating Environment: The instrument shall operable over the ambient temperature range from 10°F to 125°F and relative humidity range between 1 to 95% non-condensing.

Detector Array Cooling: If the detector array is electrically cooled, the imager shall reach operational temperature within 15min.

Instrument Housing: The instrument housing shall be rated at least IEC IP-51 (Ref 2.2.1) and shall not exceed a height and width of 60 cm, a depth of 50 cm, and weight of 13.5kg.

Instrument Mounting: The instrument shall have an integrated mounting capability.

Statement of Volatility: The instrument shall include a Statement of Volatility, or procedures to accomplish a complete and total instrument data memory wipe, such that no data history of previous data collects resides within the instrument or on software GUI license dongles, if required.

Instrument Interface: The instrument software control and data transmission shall have a 1000Base-T Ethernet computer interface (Ref. 3.6.2).

Instrument Commercial Availability: This instrument’s core functionality shall be based upon a commercially available product and modified, if necessary, to fully comply with the requirements of this specification. Candidate instruments shall emphasize field-service ruggedness, ease of operation and traceability to previous imaging products from the vendor.

Instrument Software Control Interface Capabilities The instrument shall be compatible with an available software product that is capable of meeting the following requirements.

Instrument Software Environment: The instrument system shall be compatible with a graphic based software to provide instrument status monitoring, instrument control, instrument data acquisition and data viewing. The software shall be compatible with existing Government computers running Microsoft Windows 10 for 64-bit operating system. The software shall not require licensing to a specific computer, or connection to the internet, and may be installed on multiple computers simultaneously.

The software shall communicate with the instrument via Ethernet.

The software shall recognize and indicate when the instrument is not connected, and continue running until connection with the instrument is first initiated and re-established.

Instrument Software Control: The software shall include the following functionality:

Display live data from instrument Arm instrument to begin data acquisition immediately upon a trigger to start Start instrument data acquisition from graphical user interface Permit remote start instrument data acquisition via a software method, or hardware switch closure or TTL signal to the instrument head Autonomously trigger, record data, recycle collection parameters, and re-enter into an ready state for another trigger Disarm instrument from a ready state to acquire and record data View recorded data in raw or engineering units Be scriptable and provide full functionality when called from either Python or C executive script.

Record data at full sample rate with no dropped frames.

Clear/Reset instrument state Instrument Data Viewer and Data Reduction: The instrument Data Viewer and Data Reduction software shall be capable of displaying captured data. Unadjusted, as measured output scene counts shall be available.

The software native data file format shall be documented so that the government can store the collected files into the Standard Archive Format (SAF, reference 2.1.1).

Instrument Status: An Application Program Interface (API), Software Development Kit (SDK), or similar function, software shall be available that, concurrently with operation of the instruments software (reference section 3.6.1) allows the user to monitor (thru the instrument GUI and thru GET and SET commands) instrument operational parameters.

The API, SDK, or similar function, shall allow the user to GET:

1. Instrument Connection Status

1. Connected Device ID

1. IRIG Sync Status

1. Instrument Internal Temperatures, if applicable

1. Current Instrument State

i. Not Connected

ii. Idle, awaiting command

iii. Armed, ready for acquisition

iv. Acquiring, capturing data

v. Writing, saving data to disk, if applicable

vi. Done, instrument acquisition and data transfer complete The API, SDK, or similar function, shall allow the user to GET and SET

1. Output file destination folder

1. Record Duration, if applicable to instrument functionality

1. Output File Type, instrument native format or SAF

1. Output filename or, if applicable, the base filename to a series of incrementing output files generated by appending indexing numbers to the base filename for each subsequent data file to be generated

1. Integration Time and Integration Time Sequencing, if applicable

1. Sample Rate

1. Current Calibration Name (identifier/method), if applicable Automatic Data Retrieval: The instrument software control GUI and API (or similar function) shall be capable of automatic retrieval of data captured directly to the onboard data storage device in the sensor’s head.

The software and API (or similar function) shall include the following user functionality:

1. Enable/Disable record to the onboard memory

1. Initiate on demand the download of previous recorded event

1. Initiate on demand the clearing of recorded data from the sensor head

1. Ability to retrieve a single and/or multiple frames from a series of frames stored on the sensor head’s data storage device

Submittals Summary A summary of the submittals is shown in Table 2.

Operation and Maintenance Manuals Submit instrument operation and maintenance manual(s) with each unit upon delivery. Operational instructions shall cover the use of the instrument. The maintenance manual shall include a list of recommended spare parts.

Warranties Submit manufacturer’s written warranty prior to unit purchase for at least one-year coverage of the instruments parts and labor.

Specification Sheet Submit a product data sheet verifying all instrument requirements will be met prior to purchase.

Table 2: Submittal List

Verification Government Testing The Government shall have the option to conduct acceptance testing to verify instrument compliance with the specification.

Government testing will occur after delivery and before acceptance of the first unit. The Government will have 2 weeks to conduct the acceptance testing.

Packaging Preparation for Delivery:

Vendor shall provide all preservation, packaging, and packing to ensure safe delivery of each unit and related components to Arnold AFB, TN. Include manufacturer’s operating instructions in packaging.

Notes (Not Used)

Appendix A COMPLIANCE TABLE The complete wording used in the specification shall take precedence over the shortened wording used in the compliance table.

Instrument Characteristics

Sensor Electronics

Performance

Optical

General

Instrument Software Control Interfaces

Verification