Communications – electrical: acoustic wave systems and devices – Echo systems – Returned signal used for control
Patent
1996-07-08
1997-09-16
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Echo systems
Returned signal used for control
367103, 367135, 114 201, G01J 1566, F42B 1900
Patent
active
056687770
ABSTRACT:
An integrated torpedo sonar signal processor having an integrated analog-digital conversion component is provided. The torpedo sonar signal processor has four groups of low-pass filtered analog-to-digital converters, each group containing thirteen converters. The output of a group (thirteen converters) is a serial data signal which is outputted to a field programmable gate array which, in turn, converts the combined signal to parallel data word. The parallel data word is outputted to a first digital signal processor which in turn outputs to a second dual-port digital signal processor, the processor providing prefiltering and space-time processing. The output signal is then sent to a beamformer dual-port digital signal processor which has an attached external memory. The beamformer signal is then outputted to a signal processor component containing four dual-port digital signal processors and a common external memory. The entire torpedo sonar signal processor is controlled by a network controller which sequences the program downloads and system initialization. The network controller also provides a link to the torpedo's control processor over a field programmable gate array-based interface.
REFERENCES:
patent: 4686532 (1987-08-01), McAulay
patent: 5253221 (1993-10-01), Coulbourn
patent: 5483500 (1996-01-01), Capell, Sr. et al.
Eipert William F.
Lall Prithvi C.
McGowan Michael J.
Pihulic Daniel T.
The United States of America as represented by the Secretary of
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