摘要
为了提高导弹自导飞行器控制指令传输的带宽和码元保真性能,提出基于自适应信道扩频的飞行器控制指令传输均衡技术。构建飞行器控制指令传输信道的传输模型,采用互相关检测方法进行飞行器控制指令传输信号的抗干扰滤波检测,采用波特间隔均衡方法构建飞行器控制指令传输信道均衡模型,结合模糊度辨识方法进行飞行器控制指令传输信号的自适应信道扩频,提取飞行器控制指令传输信号的功率谱特征量,结合波束形成方法进行飞行器控制指令传输信道扩频过程中的聚焦处理,有效抑制旁瓣干扰,采用自适应信道扩频方法实现飞行器控制指令传输扩频优化。仿真结果表明,采用该方法进行飞行器控制指令传输扩频的带宽较大,旁瓣抑制能力较好,具有很好的控制指令传输抗干扰能力,降低了输出误比特率,具有很好的飞行器控制指令传输质量提升效能。
In order to improve the bandwidth and symbol fidelity performance of missile aircraft control command transmission,an aircraft control command transmission equalization technology based on adaptive channel spread spectrum is proposed.The transmission model of aircraft control instruction transmission channel is constructed,and the anti-interference filtering detection of aircraft control instruction transmission signal is carried out by using cross-correlation detection method.The adaptive channel spread spectrum of aircraft control instruction transmission signal is combined with ambiguity identification method,and the power spectrum characteristic quantity of aircraft control instruction transmission signal is extracted.Focusing processing is carried out in the process of spreading spectrum of aircraft control instruction transmission channel by combining beamforming method,which effectively suppresses sidelobe interference.The simulation results showthat this method has wide bandwidth,good sidelobe suppression ability,good anti-interference ability of aircraft control instruction transmission,reduced output bit error rate,and good efficiency of aircraft control instruction transmission quality improvement.
作者
林涛
郭建松
LIN Tao;GUO Jiansong(No.91431 Troops of PLA,Haikou 570100,China)
出处
《智能计算机与应用》
2020年第7期166-169,共4页
Intelligent Computer and Applications
关键词
导弹
飞行器
控制指令
传输
滤波
信道均衡
missile
Aircraft
Control instruction
Transmission
Filtering
Channel equalization
