Design and Prototype of Frequency-Domain GPS Receiver

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 28599
Amount: $54,868.00
Phase: Phase I
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
P.o. Box 142, Hatfield, PA, 19440
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Chun Yang
 (215) 362-0312
Business Contact
Phone: () -
Research Institution
The development of advanced time-frequency signal processing techniques and real-time implementation schemes with high-speed DSP chips is proposed, leading to a new generation of high-performance GPS receivers. A unique frequency-domain GPS receiver architecture is set forth, into which the following technical innovations are incorporated: (1) fast and simultaneous acquisition of multiple satellites using FFT-based code correlation; (2) FFT-implementation of maximum likelihood estimation of code offset and Doppler frequency shift, allowing for code and carrier phase tracking in a high dynamic environment; and (3) frequency-domain filtering of multipath and jamming signals to suppress their effects. Phase I effort will be focused on the investigation of algorithms performance and efficiency based on analysis and simulation. A rapid prototyping scheme based on a commercial open-architecture GPS receiver is also proposed in order to verify the functionality of the proposed frequency-domain GPS receiver.

* Information listed above is at the time of submission. *

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