Reception of uplink data from sonobuoys

Details Reception of uplink data from sonobuoys Reception of uplink data from sonobuoys

2011-07-26

2011-07-26

Lobo, Ian (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Transponders

Sonobuoys and sonobuoy systems

Reexamination Certificate

active

07986585

ABSTRACT:
A method for improving the bit error rate in digital transmissions of sonobuoy sensor data from a sonobuoy to a receiver platform includes computing a send checksum on a frame of sonobuoy sensor data, copying the frame of data and checksum into a plurality of subframes, delaying one of the plurality of subframes for a predetermined period, multiplexing the delayed subframe with the plurality of subframes into a transmit frame; and transmitting the transmit frame. The invention is particularly suited to improving the reception of legacy sonobuoy receivers in littoral waters where radio frequency interference and signal propagation is a severe problem.

REFERENCES:
patent: 5452262 (1995-09-01), Hagerty
patent: 2009/0316522 (2009-12-01), Sato

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