Method and apparatus for determining the signal quality of a dig

Details Method and apparatus for determining the signal quality of a dig Method and apparatus for determining the signal quality of a dig

1993-02-01

1995-01-31

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

455 671, 455 673, 375 99, H04B 346, H04B 1700, H04Q 120

Patent

active

053864956

ABSTRACT:
A receiver for receiving and decoding a carrier signal is described. The carrier signal is modulated with a digital signal. The receiver includes a receiver section (162) for demodulating the received carrier signal. The demodulated signal is then sent through an A/D converter (164) for converting the demodulated signal into a digital format. A digital signal processor (166) receives the digital format and calculates the autocorrelation function of the digital format. The digital signal processor (166) then computes the ratio of the autocorrelation at two different reference points and compares this value to a plurality of values stored in its memory locations. The plurality of stored values representing different signal quality measurements.

REFERENCES:
patent: 4581767 (1986-04-01), Monsen
patent: 5054035 (1991-10-01), Tarallo et al.
patent: 5251237 (1993-10-01), Baier

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