Design of delay mapping receiver for GPS remote sensing

Backgrounds and advantages of sea surface wind remote sensing technique based on GPS and the ocean scattered signal measure technique are introduced. Five main techniques are discussed as improving the signal noise ratio, dual front-end receiver design, calculating the specular point code delay, working modes configuration and the embedded firmware function. Inshore flight tests were done in Tianjin with the receiver mounted on an airplane. Results show that the delay mapping receiver (DMR) can receive direct and ocean scattered GPS signal simultaneously which achieves the performance specifications.