Design and Prototype of Frequency-Domain GPS Receiver

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$54,868.00
Award Year:
1995
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
28599
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Signal & System Technologies
P.o. Box 142, Hatfield, PA, 19440
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Chun Yang
(215) 362-0312
Business Contact:
() -
Research Institution:
n/a
Abstract
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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