基于FPGA的战术数据链中继传输复接技术

Research on FPGA-based data multiplexing technology for TDLs relay transmission

有效传输和分发遥控遥测、定位/导航、战场情报等信息对保障己方战术信息共享具有重要意义。为了节省信道资源,降低调制解调设备的复杂度,战术数据链数据中继传输复接系统在信息化战争中得到了广泛应用。针对机载设备体积小、重量轻、功耗低、信息传输效率高等要求,提出了一种基于现场可编程门阵列(field-programmable gate array,FPGA)的实现空中战术数据链中继传输数据复接的新方法。该方法在单片FPGA芯片的基础上,采用优化的硬件编程算法和结构,占用较少芯片资源;采用完全流水线的并行设计,满足高速战术信息实时处理的要求;FPGA内部采用模块化设计,具备开放性和灵活性,便于系统可重配置和升级;实例仿真验证表明,该模块能够有效地实现不同速率多种战术数据链中继传输的数据复接。

Effective transmission and distribution of tactical information with reference to remote control and telemetry,orientation/navigation,and battlefield intelligence are crucial to sharing tactical information.The tactical data links relaying and multiplexing system is applied widely in information warfare to save channel resource and reduce the complexity of modulation and demodulation.In correspondence with the requirements that airborne equipment should be small,light,and low power consumption while is capable of transmitting information effectively,this paper presents a new method for FPGA based data multiplexing relay transmission of air tactical data links.The hardware programming algorithm and architecture are optimized upon a single FPGA chip,taking up fewer chip resources;the pipelining is designed to be fully parallel to fulfill the requirements of high-speed real time processing of tactical information;the design inside FPGA is modularized being open and flexible for the system to be reconfigured and upgraded easily.The simulation demonstrates that the module can integrate tactical data streams with various types and rates into one high-speed data stream effectively.