Method to determine a channel characteristic, and discrete...

Details Method to determine a channel characteristic, and discrete... Method to determine a channel characteristic, and discrete...

H - Electricity

04

B

H04B 17/00 (2006.01) H03K 7/02 (2006.01) H04L 25/02 (2006.01) H04L 27/00 (2006.01) H04L 27/02 (2006.01)

Patent

CA 2336556

To determine the channel characteristic of a channel (CHANNEL) between a transmitter (TX) and a receiver (RX), a predetermined periodic signal of pulse amplitude modulated symbols is modulated on waveforms by a cosine modulated filter bank (DWMT MOD) in the transmitter (TX), and the waveforms are transmitted over the channel (CHANNEL). In the receiver (RX), the received pulse amplitude modulated symbols are demodulated from the waveforms by a cosine modulated filter bank (DWMT DEMOD), pairs of the received pulse amplitude modulated symbols are combined to form received quadrature amplitude modulated symbols, and the received quadrature amplitude modulated symbols are divided by the transmitted predetermined pulse amplitude modulated symbols considered pairwise as transmit quadrature amplitude modulated symbols. So, samples of the channel characteristic are generated.

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