High-resolution ranging and location finding using multicarrier signals

摘要: The invention relates to methods and systems for accurate ranging geo-locationing using coherent multicarrier (CM) signals based on a high-resolution estimation of receiver timing offset in signal that receives CM signals. A transmitter transmits having known subcarrier modulation pattern. samples the it reflected back from an object or remote transmitter, processes sampled preserves relative phases model channel response function determine with resolution much better than sampling period. is used flight time high accuracy.