Advanced ASW sonobuoy receivers

Summary form only given, as follows. The development of extremely high sampling rate, high dynamic range A/D converters has resulted in the feasibility of a mostly digital telemetry receiver. The Naval Command and Control and Ocean Surveillance Center, under Office of Navy Research funding is developing an advanced ASW receiver which implements RF channel filtering, null steering, direction finding and information demodulation in a high speed digital signal processor. This paper describes the requirements for the receiver, the overall system architecture chosen for this application, the A/D converter characteristics required to achieve the desired dynamic range and to implement the null steering functions, and the features of the DSP algorithms, and the high speed processor which implements them. Potential application of this technology to commercial and military communications are also discussed