Pulse or digital communications – Repeaters – Testing
Patent
1992-02-21
1994-04-12
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
375 94, H04B 346
Patent
active
053032624
ABSTRACT:
A measurement apparatus and method for triggering and making analog measurements of radio frequency (RF) bursts in a time domain multiple access communications system. An RF level detector or edge detector triggers an analog sampler which acquires measurement data from a spectrum analyzer or an RF peak detector. A digital signal processor processes the RF burst to detect a known bit sequence and calculates a timing relationship between the triggering of measurement samples and transmitted data bits in the RF burst. A host processor uses the calculated timing relationship to identify and analyze the measurement data pertaining to desired measurements of the RF burst.
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patent: 4805189 (1989-02-01), Mahony
patent: 5001724 (1991-03-01), Birgenheier et al.
patent: 5097486 (1992-03-01), Newby et al.
patent: 5121413 (1992-06-01), Voegtly et al.
patent: 5187719 (1993-02-01), Birgenheier et al.
Birgenheier, "Technique for Measuring Phase Accuracy and Amplitude Profile of Continuous-Phase-Modulated Signals", Heweltt-Packard, Apr. 1989, pp. 1-21.
Birgenheier et al., "Method and Apparatus for Measuring Modulation Accuracy", U.S. patent application Ser. No. 07/559,313, Filed Jul. 30, 1990, 40 pages.
Chin Stephen
Hewlett--Packard Company
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