摘要
在实际环境中,为满足实战化对海量通信数据传输以及天线向量的正交分离的需求,利用多输入多输出(Multi-Input-Multi-Output,MIMO)技术有效突破单天线下香农定理对信道容量的限制,在Alamouti-STBC编码技术和恒包络S16PSK-LFM雷达通信一体化信号的基础上,研究设计了基于STBC编码的恒包络MIMO-CE-S16PSK-OFDM-LFM雷达通信一体化信号,并对其进行了简要的介绍,提出了MIMO技术下的香农定理。对恒包络MIMO-CE-S16PSK-OFDM-LFM雷达通信一体化信号进行了通信信道容量和误码率以及雷达模糊函数的仿真,发现Alamouti-STBC编码技术和MIMO技术可以有效地大幅度增加信道容量,进而提升通信的传输速度并降低误码率。但是在模糊函数性能上,Alamouti-STBC编码技术会略微降低雷达的分辨率。随着MIMO收发天线数量的增加,通信传输的误码率呈下降趋势,但却不完全是线性的。
In actual environment,in order to meet the actual combat requirement for massive communication data transmission and the orthogonal separation of antenna vectors,MIMO technology is used to effectively break through the constraint of Shannon’s theorem on the channel capacity of single antenna,and based on the Alamouti-STBC coding technology and the constant-envelope S16PSK-LFM radar communication integrated signal,the constant-envelope MIMO-CE-S16PSK-OFDM-LFM radar communication integrated signal is designed and briefly introduced.The Shannon’s theorem under MIMO technology is proposed.The communication channel capacity,bit error rate and radar ambiguity function of the constant envelope MIMO-CE-S16PSK-OFDM-LFM radar communication integrated signal are simulated,and it is found that the Alamouti-STBC coding technology and MIMO technology can increase the channel capacity effectively and significantly,so the transmission rate of communication is improved and the bit error rate reduced.However,in terms of ambiguity function performance,the Alamouti-STBC coding technology will slightly lower the radar’s resolution.As the number of MIMO transceiver antennas increases,the bit error rate of communication transmission shows a downward trend,but it is not completely linear.
作者
马启成
卢建斌
MA Qicheng;LU Jianbin(College of Electronic Engineering,Naval University of Engineering,Wuhan 430032,China)
出处
《无线电工程》
北大核心
2022年第3期358-367,共10页
Radio Engineering
基金
国家自然科学基金(61501486)。
