Adaptive constant false alarm rate system for detecting CDPD bur

Details Adaptive constant false alarm rate system for detecting CDPD bur Adaptive constant false alarm rate system for detecting CDPD bur

1997-07-08

1999-11-09

Hudspeth, David R.

Telecommunications

Radiotelephone system

Auxiliary data signaling

455 671, 455 673, 455511, H04B 1700

Patent

active

059831111

ABSTRACT:
An adaptive constant false alarm rate system provides a method and apparatus for reliably detecting burst information by minimizing the effects of noise levels and signal quality on the detection decision. In particular, the adaptive constant false alarm rate system of the present invention acquires an accurate estimate of the noise floor during a time when no signals information is present on the channel. Accordingly, any activity on the channel during this idle time is a relatively accurate indication of the channel's noise activity. This noise floor estimate is incorporated into a constant false alarm detection scheme to thereby minimize the effects of both the noise level and signal quality on the detection scheme.

REFERENCES:
patent: 5574750 (1996-11-01), Peponides et al.
patent: 5625889 (1997-04-01), Chikkaswamy et al.
patent: 5719902 (1998-02-01), Quick et al.
patent: 5805982 (1998-09-01), Hulsebosh
patent: 5854808 (1998-12-01), Peponides et al.

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