NCCOSC RDTE Division Code 02214B 53570 Silvergate Avenue Bldg A33 San Diego CA 92152-5113

A -- BROAD AGENCY ANNOUNCEMENT--INNOVATIVE APPROACHES TO PROBLEM SOLVING IN THE ROTHR PROGRAM AREAS OF LANDBASED OTH HF RADAR SURVEILLANCE SOL N66001-95-X-6021 POC Contract Specialist, Janice M. Garrett, (619)553-4523. Contracting Officer, Ulysses Miller, Jr. Leo P. Mulcahy, Technical Contact (619)553-1479. Bid Clerk, J. C. Norris, (619)553-4331. The Research, Development, Test and Evaluation Division of the Naval Command, Control and Ocean Surveillance Center (NCCOSC/RDTE) issues this Broad Agency Announcement (BAA) under the provisions of Federal Acquisition Regulations (FAR) 6.102(d)(2). NCCOSC/RDTE is interested in applied research and development proposals related to innovative approaches to problem solving in the areas of land-based, over-the-horizon (OTH) surveillance, high-frequency (HF) radars. Efforts should be related to enhancing the AN/TPS-71 (designated ROTHR) system. The primary emphasis will be to improve the AN/TPS-71 system for the Department of Defense (DoD) detection and monitoring mission. Technical areas of interest include, but are not limited to: (1) improved detection and tracking of surface ships and aircraft; (2) improved algorithms for data fusion of over-lapping OTH radar coverage.; (3) embedded communications; (4) improved automatic radar management; (5) advanced waveforms; (6) advanced architectures; and (7) improved sea surface wind direction/velocity estimates. The following describes the ROTHR AN/TPS-71 system and is a brief synopsis of certain features. The AN/TPS-71 is a land-based, bi-static OTH radar system with a transmit site separated by 25 to 125 nautical miles from the corresponding receive site. The Operations Control Center (OCC), which schedules radar dwells, processes radar returns, and reports contacts of interest to higher authority, may either be collocated with the receive site or placed at a centralized location with other OCCs. The AN/TPS-71 system measures (1) the target echo time delay (or slant range) from the radar refracted by the ionosphere to the target and back, (2) the target's azimuthal bearing, and (3) the target's Doppler shift due to its radial velocity with respect to the radar transmit/receive beam. Strong ground clutter which is returned at near zero Doppler is separated from the target's Doppler by means of spectral analysis. Real-time ionospheric soundings enable AN/TPS-71 operations to determine the characteristics of the ionosphere down range from the receive site to the surveillance region of interest. Using this information, the AN/TPS-71 system converts sets of radar measurements to ground coordinates of position, course, and speed for each target. Certain information about the AN/TPS-71, such as position, course, and speed accuracies are classified. In order to provide offerors with a more detailed, classified description of the AN/TPS-71, a classified briefing will be provided by NCCOSC/RDTE at its San Diego, CA, facility on 6 March 1995 at 0900 hours. This briefing will be classified SECRET. Interested parties should contact Commanding Officer, ATTN: Leo P. Mulcahy, Naval Command, Control and Ocean Surveillance Center, Research, Development, Test and Evaluation Division, 53560 Hull St., San Diego, CA. 92152-5001, telephone (619)553-1479, FAX (619)553-2320, on or before 24 February 1995. Forward security clearnace data to Commmanding Officer, Naval Command, Control and Ocean Surveillance Center, Research, Development, Test and Evaluation Division, 49275 Electron Drive, San Diego, CA 92152-5435, FAX (619)553-6169, verification telephone (619)553-3203, on or before 2 March 1995. For those unable to attend the briefing, NCCOSC/RDTE will provide a copy of the unclassified briefing charts. Results of the BAA activities that are found to be useful will be used to generate modifications to the existing radar system. Therefore, an evolutionary approach to implementation is required when addressing new system architectures, algorithms, hardware/software improvements or other innovative advances in the OTH/HF radar. Proposals which allow for modifications according to this criterion will be considered for this BAA. NCCOSC/RDTE can provide the following support to this BAA effort: (a) recorded signal and environmental data from operational AN/TPS-71 systems on magnetic media (preferably DEC TK50, TK70, TA90 or nine-track formatted magnetic tapes); (b) a portion of system time on an operational AN/TPS-71 radar for experimentation and to collect live data in support of research efforts under this BAA (this support is available on a limited basis and only on a ''not-to interfere basis'' with current operations); and (c) controlled access to the NCCOSC/RDTE based ROTHR OCC playback facility for contractor use. This OCC suite duplicates the operator interface and portions of the radar signal processing of the AN/TPS-71 system. Other OTH facilities may be used to collect data for efforts under this BAA, however, the offeror must make all necessary arrangements for the use of any other facility and must demonstrate the alternative facility's relevance to the AN/TPS-71 system. Note: Some offerors may not need data from an OTH radar system. However, it is important that offerors have a basic appreciation of the existing features of the AN/TPS-71 system. Prior to submitting a formal proposal, offerors are required to submit three copies of a white paper on their proposed research topic(s) which shall not exceed 10 pages in length, including graphs and charts, by 30 March 1995. The white papers must reference BAA N66001-95-X-6021. In addition to the technical content, the white papers should include the amount of data collection required, the intended facility, the cost of the program, and a schedule. The purpose of the white papers is to preclude unwarranted effort on the part of the offeror whose proposal is not of interest under this BAA. Multiple white papers addressing different areas of applicability may be submitted and are encouraged. The white papers will be evaluated by a government team and only offerors submitting acceptable white papers will be invited to submit full proposals. Evaluation of both white papers and proposals will be performed using the following criteria: (a) overall scientific and/or technical merits of the proposal, (b) the potential contributions of the effort to the AN/TPS-71 detection and monitoring mission to support the Joint Task Forces, (c) the offeror's capabilities, related experience, facilities, techniques, and or unique combinations of these which are integral factors for achieving the proposed objectives, (d) the offeror's record of past and present performance, (e) the realism of the schedule submitted for performing the proposed effort, (f) the offeror's rational approach to proposed cost and fee, and (g) availability of funds. Following the evaluation of initial white paper responses, the successful white paper offerors will be notified by 17 April 1995 and asked to submit full proposals which will be due 17 May 1995. Proposals to be evaluated shall be formatted in two volumes, a technical volume one and a cost volume two. Volume one shall be no longer than (40) pages including graphs and figures. Award decisions will be based on competitive selection of proposals resulting from a scientific review by the Proposal Evaluation Team. Proposals will be evaluated using the same criteria specified for the white papers, except that cost will be a factor in the award decision. Multi-year development projects are preferred provided the offeror can structure a baseline demo phase followed by an option(s) phase. One to two year baseline projects are acceptable. The Government anticipates funding two or three cost-type contracts, not to exceed $500,000. per contract for the baseline phase under this BAA. However, the number of proposals funded will depend upon the technical merit of proposals received and available funding. The government may negotiate the complete effort including options, but initially provide for funding on the baseline phase only. There will be no formal request for proposal (RFP) or other solicitation with regard to this BAA nor does the issuance of this BAA obligate the government to fund any subsequently invited proposals nor pay any proposal preparation costs. Prior to the submission of white papers, offeror may contact NCCOSC/RDTE technical community via Mr. Leo Mulcahy at telephone (619)553-1479 for matters to technical inquiry. For matters of a contractual nature, contact Ms. Janice Garrett at telephone (d619)553-4523. Interested parties are invited to respond to this synopsis. All responsible parties responses will be considered. For copies of solicitations only written request will be honored. (0044)

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