SOURCES SOUGHT
A -- Combined Coding Modulation System
- Notice Date
- 12/17/2004
- Notice Type
- Sources Sought
- NAICS
- 541710
— Research and Development in the Physical, Engineering, and Life Sciences
- Contracting Office
- Department of the Air Force, Air Force Materiel Command, AFFTC - AF Flight Test Center, 5 S WOLFE AVE, Edwards AFB, CA, 93524-1185
- ZIP Code
- 93524-1185
- Solicitation Number
- Reference-Number-F1LMCA
- Response Due
- 1/18/2005
- Archive Date
- 2/2/2005
- Description
- THIS IS A RESEARCH AND DEVELOPMENT SOURCES SOUGHT. The Director, Operational Test and Evaluation (DOT&E), the Test and Evaluation/Science and Technology Spectrum Efficient Technology Program Office, Edwards AFB, CA, is seeking sources with demonstrated expertise and experience to design and build a working prototype of the Combined Coding Modulations System. The Government requests industry qualification packages, which include references and proof of capability and experience in the area of Combined Coding Modulation Systems. The package will not exceed 10 pages. Responses will assist the Government in determining whether to set-aside/restrict competition in some way, or solicit offers from all responsible sources. The Government will consider all responses to determine the extent of interest of qualified sources. Industry must submit sufficient information for the Government to determine their capabilities and experience to design and build a flight capable working prototype of the Combined Coding Modulation System. The CCMS is based on the work described in the following two papers. (a) Wilson, Sleeper, Schottler, Lyons, "Rate ? Convolutional Coding of 16-PSK: Code Design and Performance Study", IEEE Transactions on Communications, Vol. COM-32, No.12, December 1984. (b) Ungerboeck, G. "Channel Coding with Multi-level/phase Signals", IEEE Transactions on Information Theory, vol. IT-28, pp.55-66, Jan. 1982. The CCMS shall be compatible with non-linear RF power amplifiers in that the modulation will be constant envelope. The proposed work is part of an ongoing research effort towards the establishment of bandwidth efficient modulations although the Government does not have any detailed data to provide. The objectives shall include but are not limited to the following: 1) Construct a CCMS modulator and demodulator. The modulator and demodulator shall operate at a single frequency of 70 MHz. The modulator package shall be provided as flight worthy in a mutually agreeable form factor. 2) Quantify the performance level of the approach with regard to bit error rate, occupied bandwidth and implementation complexity, in both the laboratory and airborne environments. 3) Evaluate the performance level in the non-linearly amplified (NLA) environment. 4) Perform comparisons of the technique with the ARTM-defined tier-1 and tier-2 modulations. 5) Assemble and operate the system in the laboratory environment. Prepare demonstration on the basis of Eb/No. 6) Assess link performance and system integration. Relate Eb/No metrics to system C/N and relate to range/performance. Background: Within the T&E environment, the legacy equipments operate using PCM-FM, a specific variation of CPFSK, referred to as tier-0. This modulation type, under all conditions relevant, exhibits a spectral efficiency of around 0.45 bits/sec/Hz. The new modulations of SOQPSK and FQPSK, referred to as tier-1, exhibit about 0.91 bits/sec/Hz. The most efficient modulation is the tier-2 modulation, multi-h CPM, now called ARTM CPM, exhibiting about 1.18 bits/sec/Hz. Achieving tier-2 modulation is a large computational task, both on the modulation side, but most notably on the demodulation side. This computational load has served to increase the cost of tier-2 modulation deployment substantially. Screening Criteria for Qualification Packages are: Extensive knowledge of 16-PSK modulation combined with error correction coding which are applicable to aeronautical telemetry; experience with optimizing wave shapes to simultaneously provide constant envelope signals, excellent detection efficiency, and implementation simplicity; proof that the system is scalable and is compatible with non-linear RF power amplifiers in that the modulation is constant envelope. Provide a technique that shows high spectral efficiency in terms of bits/sec/Hz consistent with 16 PSK trellis coding techniques and true constant envelope operation. Any company proprietary information shall be separately marked. Responses shall be single spaced, single sided and shall be submitted in two copies. Drawings, diagrams, or figures may be provided as an attachment to the response to clarify stated capabilities. Sources are advised that the Government intends to use non-Government personnel (Tybrin Corp) to provide technical reviews of statements of capability submitted in response to this synopsis. POINT OF CONTACT: Lisa Jackson, AFFTC/PKDD, 5 S. Wolfe Avenue, Edwards AFB, CA 93524. Voice (661) 277-7708, Fax (661) 275-7881, or email: lisa.jackson@edwards.af.mil. All responses to this synopsis shall be provided no later than January 18, 2005 to address above. Electronic and fax responses will not be accepted. Sources are reminded that this synopsis does not constitute a solicitation for bids or proposals and is not to be construed as a commitment by the Government. The Government does not intend to pay for any information provided under this synopsis. The synopsis is for information and planning purposes only, to determine the extent of interest of qualified sources by their response to synopsis. Interested, qualified sources are encouraged to advise the Government of any limiting factors or issues that they think the Government should consider in this synopsis action. Industry shall allow enough time to submit questions and to provide comments within the timeframe before the sources sought synopsis closes on January 18, 2005. Firms responding to this synopsis should reference the synopsis number and indicate whether they are or are not a small or small disadvantaged business concern as defined in FAR 52.219-1. The North American Industry Classification System (NAICS) code is 541710 with a size standard of 1,000.
- Place of Performance
- Address: 307 E. Popson Avenue, Edwards AFB, CA
- Zip Code: 93524
- Country: USA
- Zip Code: 93524
- Record
- SN00723075-W 20041219/041217211715 (fbodaily.com)
- Source
-
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