Acoustically-Prompted Karaoke for the Blind and the Visually-Impaired

Not Available The objective of this SBIR Phase I project is to develop and evaluate an innovative GPS receiver which allows the correlator output (i.e. in-phase and quadrature samples) to be directly used in a combined demodulation and navigation algorithm. Because this method makes full use of the intersatellite statistical properties of phase, frequency, and delay processes, as well as the correlator dynamic characteristics and the satellite geometry, this conventional tracking loop-free GPS receiver has enhance navigation accuracy and anti-jamming performance. Several new technologies are utilized to develop and evaluate this kind of GPS receiver in this project. First, a combined demodulation and navigation algorithm with or without IMU aiding is developed. Then, a Virtual GPS Receiver Environment, which will be applied to the combined demodulation and navigation algorithm, is investigated and developed. Finally, a correlator GPS modeling and simulation is conducted to evaluate the navigation accuracy and anti-jamming performance.