Mode Controller for signal acquisition and tracking in an...

Details Mode Controller for signal acquisition and tracking in an... Mode Controller for signal acquisition and tracking in an...

2005-11-15

2005-11-15

Liu, Shuwang (Department: 2634)

Pulse or digital communications

Spread spectrum

C375S136000, C375S142000, C375S147000, C370S210000

Reexamination Certificate

active

06965630

ABSTRACT:
A system and method for controlling the mode of operation in a UWB receiver. In one variation, the system and method determines the mode of operation by reading a set number of samples of the signal, estimating mode parameters, calculating a mode probability, and then transitioning in a finite state machine from either a tracking to an acquisition state or vice versa depending on the value of the mode probability. Exemplary versions of the mode controller include a signal to noise ratio calculator, a signal and noise power estimator, and an AGC initialization circuit.

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