MODIFICATION
99 -- Prototype Local Area Augmentation System (LAAS) Test Prototype (LTP
- Notice Date
- 6/28/2004
- Notice Type
- Modification
- Contracting Office
- FEDERAL AVIATION ADMINISTRATION, ACX-51 W.J. Hughes Tech Center (ACT)
- ZIP Code
- 00000
- Solicitation Number
- DTFACT-04-R-00020
- Response Due
- 7/1/2004
- Archive Date
- 7/31/2004
- Point of Contact
- Phyliss Schlegel, (609)485-4380
- E-Mail Address
-
Email your questions to phyliss.schlegel@faa.gov
(phyliss.schlegel@faa.gov)
- Description
- Due date for responses is close of business, Wednesday, June 30, 2004. Description of Requirement: The Federal Aviation Administrations (FAA) Local Area Augmentation System (LAAS) Ground Facility (LGF) requires valid ranging source error estimates for all Global Positioning Service (GPS) Standard Positioning Service (SPS) satellites in view within a specified reception area. Error estimates from a prototype LGF have been provided to the LAAS specification team in order to validate of the requirements of the specification using a dual-port L1 only antenna design. While the dual-port design is effective, it requires additional receiver hardware. A simpler broadband (L1/L2/L5) single-port design with reduced siting constraints would benefit the LAAS program by reducing the complexity of the validation prototype. A review of the literature shows a number of antennae that have been proposed and built with these design goals, but, to date, none have proven feasible. BAE Systems has independently researched and developed an antenna design that potentially will provide reception on multiple frequencies, with a large desired to undesired ratio reception pattern and low-error GPS measurements. If the design concept proves successful, LTP data collection and operational capabilities will be greatly expanded. Antenna Requirements: The prototype antenna shall: ? Be capable of receiving GPS signals on L1, L5, and L2 within the reception mask specified in FAA-E-2937A. ? Provide the received signals on a single antenna port for all elevations between 5 and 90 degrees. ? Provide a desired to undesired amplitude ratio for single reflection ground-induced multipath of at least 30dB for elevation angles between 5 and 35 degrees. ? Provide an omni-directional azimuth gain pattern, ??1dB, as a function of elevation. ? Provide the signals without any azimuth dependent group or phase delay variations exceeding ??1cm. ? Provide the signals without any elevation dependent group or phase delay variations exceeding ??1cm. ? Provide the signals utilizing multiple right-hand circularly polarized antenna elements. Technical Approach: In addition to meeting the technical requirements, assembly and demonstration shall be conducted in two separate phases. The first phase is assembly and proof of the basic properties of the reception element. The second optional phase will include assembly and testing of a complete prototype antenna array. Performance verification shall consist of controlled laboratory tests, antenna test range measurements, and reception of the live GPS SPS constellation. The FAA will conduct validation testing. The contractor must have in in-depth understanding and expertise in antenna design and manufacturing and be a recognized leader in the aviation community for aircraft safety by: serving on thefully cognizant of FAAs research and development activities and objectives for this type of equipment. participating in aircraft safety related conferences (e.g. Aging Aircraft Conference) as a speaker, chairman, and or a member of the organizing committee.In addition, the contractor must have the infrastructure in place for this work including all equipment and manpower. This includes, but is not limited to:access to resources and facilities to perform all research tasks. Based on review of the literature and current knowledge of the industry, BAE Systems is considered to be the only source with the requisite design and technical capabilities. A competitive solicitation is not available for this procurement. If your company does not agree with this single source determination, please provide evidence of requisite capabilities, equipment and experience in providing similar research service for FAA to evaluate. All responses to this announcement must be in writing and directed to Phyliss Schlegel no later than close of business Thursday, June 30, 2004. Responses may be sent to the attention of Ms. Schlegel by fax at 609.485-4088 or by e-mail at: phyliss.schlegel@faa.gov.
- Web Link
-
FAA Contract Opportunities
(http://www.asu.faa.gov/faaco/index.htm)
- Record
- SN00611147-W 20040630/040628211833 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)
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