摘要
L^2正交空时码(Space-time Code,STC)与连续相位调制(Continuous Phase Modulation,CPM)的通信系统可在发射天线数大于2时实现全速率传输,利用每路信号波形的正交性可以降低最大似然检测复杂度。在现有的通信系统基础上,针对Multi-h CPM信号,利用倾斜相位(Tilted Phase,TP)+频率脉冲截断(Frequency Pulse Truncation,FPT)算法进行波形拟合。经仿真验证,L^2 STC-CPM遥测系统可有效地解决“双天线问题”,且简化方案在保有较好误码性能的同时降低了检测复杂度。
L^2 orthogonal space-time code(STC)-continuous phase modulation(CPM)communication systems can achieve full-rate transmission when the number of transmit antennas is more than 2.Due to the orthogonality of each signal waveform,the maximum likelihood detection complexity can be reduced.Based on the existing communication system,in order to fit the waveform,the tilted phase+frequency pulse truncation algorithm is used for multi-h CPM signal.The simulation proves that the L^2 STC-CPM telemetry system can solve the dual antenna problem and the simplified scheme reduces the detection complexity with good error code performance.
作者
王西夺
赖鹏辉
李泰立
王方刚
王岩
张炜
WANG Xiduo;LAI Penghui;LI Taili;WANG Fanggang;WANG Yan;ZHANG Wei(Key Laboratory of Aerospace Information Application Technology of CETC,Shijiazhuang 050081,China;College of Electronic Science,National University of Defense Technology,Changsha 410073,China;Beijing Jiaotong University,State Key Lab of Rail Traffic Control & Safety,Beijing 100044,China;Beijing Aerospace Systems Engineering Institute,Beijing 100084,China)
出处
《无线电工程》
2020年第4期303-308,共6页
Radio Engineering
基金
中国电子科技集团公司第五十四研究所发展基金资助项目(SKX182010022)。
