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Multi-level modulation apparatus, multi-level demodulation apparatus, multi-level modulation/demodulation communication system, program and modulation/demodulation method
Multi-level modulation apparatus, multi-level demodulation apparatus, multi-level modulation/demodulation communication system, program and modulation/demodulation method
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机译:多级调制设备,多级解调设备,多级调制/解调通信系统,程序和调制/解调方法
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摘要
In a QAM modulation system, (3p+1) or (3p+2) input signal strings, where p is an integer not less than 3 or 2, are converted into three (p+1) string signals which are then allocated to three phase planes. The converted three (p+1) string signals are time-division multiplexed and multi-level modulated to realize QAM modulation in which the n-ary number may be set to approximately 2(p+1/3) or 2(p+2/3).;In a QAM modulation system, (4p+3) input signal strings, where p is an integer not less than 3, are converted into three (p+1) string signals, which are then allocated to three phase planes, time-division multiplexed and multi-level modulated to realize QAM modulation in which the n-ary number may be set to approximately 2(p+3/4).
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