1) differential space-frequency modulation(DSFM)
差分空频调制
2) differential space-time modulation
差分空时调制
1.
A new scheme (LDPC-DSTM) combining irregular low-density parity-check (LDPC) code with differential space-time modulation (DSTM) is used for coded modulation (CM).
提出一种新的结合低密度校验码(LDPC)和差分空时调制(DSTM)的联合编码调制方案。
2.
To get design parameters of unitary signal constellation for differential space-time modulation,a novel algorithm using genetic search is presented, which combines diagonal parameters and rotation factors of rotated unitary signal constellation into a codeword.
为了获得差分空时调制系统中酉信号星座的设计参数,该文将旋转酉信号星座中信号矩阵的对角设计参数与旋转因子进行联合编码,提出一种基于遗传算法的设计参数联合优化算法。
3.
To combine multilevel code (MLC) with differential space-time modulation (DSTM), a new scheme based on an multilevel low-density parity-check (LDPC) code with iterative decoding is proposed.
提出一种新的结合多级编码和差分空时调制的联合编码调制方案。
3) Differential Unitary Space-Time Modulation (DUSTM)
差分酉空时调制
1.
Differential Unitary Space-Time Modulation (DUSTM), which is a multi-antenna modulation technique for time-varying fading channels, can obtain full diversity gains without channel state information at the receiver in slowly fading channels.
差分酉空时调制(DUSTM)是一种应用于时变衰落信道下的多天线调制方法。
2.
Differential Unitary Space-Time Modulation (DUSTM) based on diagonal signals achieves full antenna diversity without requiring channel estimation.
基于对角信号的差分酉空时调制技术不需要信道估计并能实现满天线分集,但接收机的计算复杂度与发射天线数和数据率成指数关系。
5) FMDCSK
差分混沌频率调制
1.
A new chaotic spread spectrum communication system FFH-FMDCSK is presented, which is based on FMDCSK and fast frequency hopping techniques.
本文提出一种基于差分混沌频率调制(FMDCSK)的快速跳频扩谱通信系统(简称FFH-FMDCSK)。
6) video differential pulse code modulation
视频差分脉冲编码调制
补充资料：空急空巴
1.干着急﹐无可奈何。
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参考词条