Correlation peak detector

Details Correlation peak detector Correlation peak detector

1995-06-07

1997-05-13

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 58, G01R 1900, H03K 5153

Patent

active

056296398

ABSTRACT:
A correlation peak detector including an envelope detector, a peak-holder, a peak scaler, and a comparator detects the envelope of a correlator output signal, derives a peak threshold signal from the peak signal level produced by the correlator output signal, and compares the envelope of the correlator output signal to the peak threshold signal to produce a correlation peak detector output signal which indicates detection of a correlation peak. A minimum threshold signal is generated and provided to the comparator to inhibit detection of false peaks or noise. The comparator produces a correlation peak detector output signal which indicates occurrence of a correlation peak by producing a pulse whenever the magnitude of the envelope of the correlator output signal exceeds the sum of the magnitude of the peak threshold signal and the magnitude of the minimum threshold signal. Pulses in the correlation peak detector output signal may be used to synchronize receiver timing signals with a received signal. Simultaneous detection of peaks in a plurality of correlator output signals is accomplished by individually comparing each correlator output signal's envelope with the peak threshold signal to produce a plurality of correlation peak detector output signals, and combining the correlation peak detector output signals to produce a combined correlation peak detector output signal having a pulse whenever a correlation peak is detected in any of the plurality of correlator output signals.

REFERENCES:
patent: 3934203 (1976-01-01), Schiff
patent: 4164628 (1979-08-01), Ward et al.
patent: 4291410 (1981-09-01), Caples
patent: 4327438 (1982-04-01), Baier et al.
patent: 4355399 (1982-10-01), Timor
patent: 4550414 (1985-10-01), Guinon et al.
patent: 4561089 (1985-12-01), Rouse et al.
patent: 4563774 (1986-01-01), Gloge et al.
patent: 4587662 (1986-05-01), Langwellpott
patent: 4601047 (1986-07-01), Horwitz et al.
patent: 4621365 (1986-11-01), Chiu
patent: 4637003 (1987-01-01), Yokogawa
patent: 4653069 (1987-03-01), Roeder
patent: 4691326 (1987-09-01), Tauchiya
patent: 4774715 (1988-09-01), Messenger
patent: 4813057 (1989-03-01), Fullerton
patent: 4860307 (1989-08-01), Nakayama
patent: 4965759 (1990-10-01), Uchida et al.
patent: 5029184 (1991-07-01), Andren et al.
patent: 5081642 (1992-01-01), O'Clock et al.
patent: 5081643 (1992-01-01), Schilling
patent: 5132986 (1992-07-01), Endo et al.
patent: 5177766 (1993-01-01), Holland et al.
patent: 5299227 (1994-03-01), Rose
patent: 5353303 (1994-10-01), Walthall
Freret, Payne et al., Applications of Spread-Spectrum Radio to Wireless Terminal Communications, Proceedings of the IEEE, 1980, pp. 69.7.1-69.7.4.
Dixon, R., Spread Spectrum Systems with Commercial Applications (J. Wiley & Sons, 3d ed. 1994).
Dixon, Robert C., Spread Spectrum Systems, (J. Wiley & Sons, 2d ed. 1984).

Affiliated with

Also associated with

Rating

Correlation peak detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Correlation peak detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlation peak detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1388142