H-4 GOVERNMENT FURNISHED INFORMATION

DISCOVERER II PHASE I – Trade studies, prototype design(s) and objective system design(s).
DRAFT SOLICITATION, OFFER AND AWARD
1998 Sep 02

PART I - THE SCHEDULE
SECTION H
SPECIAL CONTRACT REQUIREMENTS
F04701-98-R-0045

Discoverer II Joint Program Office
Defense Advanced Research Projects Agency
3701 N. Fairfax Drive
Arlington, VA 22203

The Government will provide four categories of information during the Discoverer II Program. These four categories are:

1. Generic information: Information general in nature or available to the public, and not directly required to perform the contract scope. This information can be obtained from the Discoverer II technical library except where limited distribution requirements apply. The Government assumes no liability for this information.

2. GFI on contract: Information referenced at Attachment 6 to this contract. This information should be requested in the offeror’s proposal.

3. Information necessary to conduct trade studies or preliminary design: Information the offeror may need to perform the contract, not specifically on the GFI contract list, but within the scope of the effort. This information may or may not be added to the technical library and must be requested by the contractor.

4. New GFI request: Information the offeror may need to perform the contract, not specifically on the GFI contract list, but within the scope of the effort. This information may or may not be added to the technical library. Listed below are the risk reduction efforts, a brief description of the expected data package content, category of information, and time frame it will be available. Except for GFI on contract data, the information described is subject to programmatic and budgetary constraints, and subject to change without notice. Unless otherwise noted or agreed to the information below is category 1 information. The Government anticipates making the following information available:

Electronically Scanned Array (ESA) Radar Risk Reduction

• Oct 1998: Provide a thinned Transmit/Receive (TR) module ESA design with associated performance prediction curves.
• Feb 1999: Provide a test plan for environmental survivability and reliability (shock, thermal, radiation) of a subscale ESA.
• Apr 1999: Documentation of data processing and radar architecture derived from the ESA/signal processing risk reduction effort. Includes digital receiver, waveform optimization, calibration, mutual coupling and quantization effects.
• Oct 1999: Provide ESA (TR) thread test results, including space qualification results and TR module performance as appropriate.
• Dec 1999: Provide ESA Brass board test results, including power efficiency, agility, and environmental survivability.

Signal Processing Algorithm Risk Reduction

On-board/Off-board Processing Risk Reduction
• Oct 1998: Performance estimation package that will include area rates for SAR and MTI, array form factor trades, and sub-band processor predictions for a notional system.
• Oct 1998: The Government will provide a requirements document describing algorithms and performance requirements (thresholds, goals and trades) for MTI/SAR/ECCM on-board/off-board processing. The specification includes HRR-GMTI Space Time Adaptive Processing (STAP), with subsequent target detection and multiple hypothesis tracking, including automatic target recognition. The package will present results of theoretical analysis showing the dependency of minimum detectable velocity, bandwidth, classification accuracy, and revisit on track purity.
• Mar 1999: The Government will provide a data analysis package that outlines data reduction efforts on a variety of airborne collects. The Government will also provide phase history data from multichannel collections for processing and analysis if requested
• Jan 2000: The Government will provide analysis results and phase history data from subsequent enhanced collections, including communications, A/D, and processor quantization effects, frequency jump burst (FJB) and stepped chirp effects, influences of two step nulling for ECCM, range sidelobe effects and as available, classification accuracy as a function of bandwidth and polarization. In this Government will validate the processing algorithms using synthetic and actual targets, and man-made and natural clutter.

Onboard Processing Risk Reduction

• Jan 1999: The Government will provide a specification document for polyphase channelizer (including filter and FFT chip set) as well as initial chip performance data. This deliverable will contain a detailed description of the chip set including the expected power dissipation, input I/O sample rates, register bit widths, clock speed, number of taps and internal bit-arithmetic precision.
• Feb 1999: The Government will provide an architecture document for polyphase channelizer. The document will describe the top level architecture for the full scale and one quarter scale chip set. The architecture will include input demultiplexer, polyphase filter, followed by the FFT processor.
• Jun 1999: The Government will provide a Critical Design Review (CDR) package for one-quarter scale polyphase channelizer. The CDR package will provide the details of the chip design.
• Nov 1999: One-quarter scale demo of polyphase channelizer. A benchtop breadboard containing the one-quarter scale polyphase filter and FFT will be demonstrated. This will show real-time performance for twelve sub-bands.
• Dec 1999: The Government will provide performance data on an initial chip set. An initial test chip will be sent to the fabrication foundry to fabricate a test sample using 0.25 to maximum 0.4 micron feature size. The results of this test chip will verify the design cell library. Performance metrics will be measured to quantify the expected throughput and power dissipation.

Tracking

• The Government has provided a Probability of Correct Association Figure of Merit in Section L, Appendix 3, Attachment 2, for use in the design of the system. This is category 3 information.
• Jan 1999: This package contains a modified FOM for use with Section L, Appendix 3, Attachment 2, that includes resolution and polarization and resolution effects on predicted tracking performance.
• Feb 1999: The AlphaTech tracker software will be demonstrated at a technical interchange meeting.
• Jan 2000: The Government will provide the AlphaTech tracker software for the SI to include in their simulation and modeling. The tracker software will incorporate classification on moving vehicles. This is category 2 information.

Tasking

• Nov 1998: Asset Manager. The Government will provide documentation of integrated multi-satellite planning for MTI, SAR and HRR-GMTI modes of operation. The planning model will include full slew motion using a constant acceleration model during plan refinement stage and incorporates energy and thermal constraints into sensor schedules.
• Jan 1999: Asset Manager Software Tool. Fully documented API will be available with satellite slew and radar models definable using table lookups. Standard fixed and linear acceleration slew models and MIT/LL table lookup radar models will be included with user settable parameters. Energy and thermal constraints will be included in schedule generation. The software will be demonstrated at a technical interchange meeting.

Small, Agile Satellite Bus

• Dec 1998: Mission Feasibility Assessment. John Hopkins University Applied Physics Laboratory is assessing the demands on the Space Vehicle bus. Inputs into this process include the use of typical operational scenarios, Payload Risk Mitigation efforts and Monte Carlo Tasking Analysis. As a result of these efforts, parameters defining the trade-space of the sub-systems and overall satellite system will be defined..
• Nov 1998: Risk Reduction Plan. This plan will identify key system drivers. It will include required subsystem performance, processing and materials technologies that are deemed to be high risk as well as an assessment of on-going risk mitigation activities and recommendations for additional risk mitigation activities.
• Dec 1998: Mechanical/Electronic Agility Assessment. This assessment addresses relative constellation revisit performance over a range of mechanical and electronic scan capabilities. Radar collection opportunities are assessed by mode against a simple scenario at a variety of latitudes.

High Data Rate Communications

• Jan 2001: Common Data Link Upgraded Ground System Hardware/Software. The Army will modify an existing contract to upgrade the CDL Modular Interoperable Surface Terminal (MIST) to a minimum of 2X CDL, or whichever alternate communications subsystem exists for CDL at the time of Discoverer II launches. The objective is to ensure compatibility with both the airborne reconnaissance infrastructure and Discoverer II. The Army will deliver a fielded configuration to its tactical users at the time of launch that will provide connectivity with the satellites while retaining connectivity to airborne reconnaissance assets. The Army will also deliver a data package to the system integration contractor documenting that the changes made to the ground system matched with the agreed upon interface control documents. The MIST interface control document is category 3 information.
• Common Imagery Processor. The Army will modify an existing contract to upgrade the Common Imagery Processor (CIP) to design and modify the existing CIP design to achieve near real time image formation processing and limit data latency for the Discoverer II sensor based on the threshold of 2X CDL equivalent. The CIP ICD is category 3 information.

High Resolution Terrain Mapping

• Jan 1999: Estimated navigation and timing accuracy requirements, minimum SNR requirement, and tasking constraints for high resolution, single-pass IFSAR collection will be extrapolated from the performance and characteristics of airborne systems. Preliminary results will be obtained from trade studies on terrain mapping modes (stereo SAR and IFSAR), orbit configurations for a satellite pair to allow monostatic and/or bistatic single-pass IFSAR operation, and performance, including coverage rates, latency, and mode availability. This is category 3 information.
• Apr 1999: Trade studies to show the performance of stereo SAR and interferometric SAR modes in terrain mapping will be completed. Orbit configuration trades studies will be completed and results will indicate system performance for alternative configurations, including coverage rate, latency, and mode availability. Initial version of error model will be completed for high-resolution terrain mapping with proposed allocation of errors to individual error sources. Errors will include navigation and timing errors, noise errors, and errors due to atmospheric and scene-based phenomena. This is category 3 information.
• Oct 1999: Refined version of error model will be completed for high-resolution terrain mapping with proposed allocation of errors to individual error sources. Errors will include navigation and timing errors, noise errors, and errors due to atmospheric and scene-based phenomena. Ground segment concept will be developed for the generation of digital terrain data, including sizing of processors and storage required and summary of algorithms to be used. Quality model for SAR imagery, including the impact of hardware, processing, and environmental performance limiting factors in the SAR image chain, will be completed. The assessment of complex bandwidth compression techniques on phase-sensitive algorithms, including terrain height extraction, will be completed and a communications, compression, and processing trade study will be completed. This is category 3 information.
• Oct 2000: Data format specification (header) will be developed for SAR frames to enable terrain height extraction. This is category 3 information. The Government has established a CONOP and Utility Analysis group. The Government will provide objectives for the R&D prototype operational demonstration in Mar 1999. This is category 3 information. The Government is currently working frequency allocation authorization. The Government anticipates candidate bands in 1 st quarter FY99, with final selection in 1 st quarter FY00. This is category 3 information. Additionally, The Air Force Research Laboratory (AFRL) and Army Space and Missile Defense Command, Missile Defense and Space Technology Center is involved in several technology studies, results of which may be utilized. Contact the Discoverer II JPO technical library for more details.