Hyper Phase Shift Keying Modulation
Abstract
A communications system and method for transmitting digital
information includes arranging a modulator to have an
input bit stream of binary data and arranging a signal generator
to generate four orthonormal hyper phase shift keying
(HPSK) basis functions that are periodic functions with a
duration T. A bit to symbol mapper is arranged to combine the
bit stream and the HPSK basis functions to form a succession
of 4-bit HPSK symbols for 16-HPSK, 5-bit HPSK symbols
for 32-HPSK or 6-bit HPSK symbols for 64-HPSK, and a
transmitter is arranged to transmit signals indicative of the
HPSK symbols. A receiver is arranged to receive the signals
from the transmitter and the HPSK symbols are demodulated
with the HPSK basis functions to reproduce the bit stream of
binary data.
Description
Patent
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