摘要
A specific signal processing scheme digital time correlative accumulation is introduced. This paper is the first part, which analyses the statistical characteristics of direct signal, typical marine noise in shallow acoustical channel and describes the basic principle, structure and performances of auto-correlative accumalation. The theoretical estimations and practical application have shown that the scheme has a general significance for underwater acoustic telemetry and telecontrol at the low data rate in shallow water channels.
A specific signal processing scheme digital time correlative accumulation is introduced. This paper is the first part, which analyses the statistical characteristics of direct signal, typical marine noise in shallow acoustical channel and describes the basic principle, structure and performances of auto-correlative accumalation. The theoretical estimations and practical application have shown that the scheme has a general significance for underwater acoustic telemetry and telecontrol at the low data rate in shallow water channels.
