Scientific Systems, LLC — Department of Defense SBIR Phase I: ABSTRACT: Contemporary navigation has to cope with a variety of threats, using inexpensiv

Description

ABSTRACT: Contemporary navigation has to cope with a variety of threats, using inexpensive flexible satellites... On-orbit programmable generator which can satisfy all the current and future requirements is proposed. The proposed waveform generator is based on programmable FPGA"s and the basic building blocks for all the current, proposed and future waveforms are stored in the memory. Various waveform combinations are produced by reconfiguring the FPGA elements in real time. Use of selected"elements"and reconfigurable programmability allows unlimited waveform combinations to be generated with very little telemetry load (commanding the reconfigurations). All the waveforms such as C/A, P (Y), M, L2C, L5, L1C etc. as well as various potential waveforms for future can be accommodated. A/S and SAASM capabilities as well as M-code data structure loading will be supported through over the air-programming approaches. We have pioneered the software radio technology and its applications in GNSS. One of the most sophisticated GNSS simulators was developed during 2008 supported by the AF. This simulator provided all the current and modernized GPS, Gallileo, Glonass waveforms and with unchallenged accuracies of mm level. The VHDL codes will be adopted for the proposed effort and a live demonstration during Phase I. BENEFIT: Flexible Waveform generators will be the heart of future GNSS satellites, various waveforms can be generated on demand. This is necessary to combat the increasing threats with jammers and spoofers and in presence of blue force operation. While primarily developed for such satellite borne applications the inexpensive software programmable, flexible waveform generators will be adapted for versatile waveform generators in the commercial markets. These will have applications for both commercial receiver manufacturers as well as for performance comparison by independent agencies. In addition, the flexibility of the resultant software tool will lend itself to incorporation in other communications and radar signal simulation applications, such as real-time simulation of multi-point communication, multiple target simulation for radar systems testing, etc. We are teaming with Boeing Corpn. During this project and this teaming will ensure stability and enhance commercialization