Pulse or digital communications – Repeaters – Testing
Patent
1995-06-07
1997-08-19
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
375208, 375336, H04B 1707, H04L 2714
Patent
active
056595743
ABSTRACT:
A technique for demodulating CPM spread spectrum signals and variations thereof. A receiver receives a CPM spread spectrum signal, splits it into two signals, demodulates the signals (either coherently or non-coherently) and simultaneously attempts to correlate for a plurality of chip sequences (e.g., I and Q or even and odd), ultimately combining the results into a unified correlation signal. A plurality of A/D converters quantize the demodulated signals into multi-bit digital signals prior to correlation, and multi-bit correlators operate on the multi-bit digital signals to produce correlation signals that are combined to form a unified correlation signal for detection.
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Burbach Mark T.
Durrant Randolph L.
Chin Stephen
Gluck Jeffrey W.
Omnipoint Corporation
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