Architecture for signal acquisition with cyclic range search

Details Architecture for signal acquisition with cyclic range search Architecture for signal acquisition with cyclic range search

2006-05-03

2009-10-20

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Spread spectrum

C375S132000, C375S135000, C375S136000, C375S138000, C375S147000, C342S070000, C342S134000, C342S465000

Reexamination Certificate

active

07606290

ABSTRACT:
An architecture for a spread-spectrum transmitter-receiver system in an advanced tactical data link that allows the receiver to readily acquire and synchronize to a desired LPD signal. Signal acquisition is performed with a cyclic range search that uses multiple redundant known sequences mapped to a known message sequence in a highly repeated manner. By employing the invariance of the speed of light, and synchronicity between transmitter and receiver, the architecture can significantly reduce the computational complexity of the receiver. Additionally, the architecture enables ad hoc channel access, controlled latency, distance estimation, and distance-directed transmissions.

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Wavelets and Wideband Correlation Processing; Lora G. Weiss; IEEE Signal Processing Magazine; Jan. 1994; p. 13-32.

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