Pulse or digital communications – Testing
Patent
1993-11-12
1995-09-12
Chin, Stephen
Pulse or digital communications
Testing
375343, 375365, 370 20, 370 21, 3701051, H04B 346, H04B 1700, H04Q 120
Patent
active
054504562
ABSTRACT:
A multi-channel transmission system operates by transmitting digitally-coded signals modulated in sequential symbol blocks at a plurality of carrier frequencies, and receiving and demodulating the digitally-coded signals, wherein, in the transmitting, a test signal is generated in at least one symbol block, the test signal containing at least one periodically continued, differentially coded, self-orthogonal sequence of a constant amplitude modulated to a part of the plurality of carrier frequencies within a symbol block in differential coding.
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Chin Stephen
Daimler - Benz AG
Vo Don N.
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