Experimental Results of Passive Phase Conjugation Applied to Underwater Acoustic Communication

摘要

In May 2000, an experiment was performed to demonstrate the effectiveness of passive phase conjugation (PPC) for underwater acoustic communications. PPC is a coherent array and signal processing scheme that has strong theoretical ties to active phase conjugation and time-reversal mirrors in the ocean. It differs from active techniques in that an array of transducers need only receive, while the transmitter can be a single transducer. Previous results have been presented showing performance of the algorithm for cases with a vertical receive array spanning the water column. This paper will show further results with a truncated receive array.