基于导弹数据链的级联编码的设计与实现

Design and Implementation of Concatenated Code Based on Missile Data Link

为了提高当前导弹数据链系统中弹载下行数据链与车载上行数据链视频与数据传输的可靠性,降低误码率,设计级联编码用于导弹数据链系统的信道编码,RS(255,239)码、交织(17×15)与卷积码(2,1,7)进行级联设计与综合,并通过VHDL语言实现级联编码的算法设计,在FPGA芯片上实现。经过仿真验证,级联编码能够纠正140Bits的错误,有效地降低了导弹数据链的误码率。将级联编码应用到导弹数据链系统中,能够满足武器系统的设计要求。

In order to improve the reliability and reduce the bit error rate of the video and data transmission in the missile downlink data link and onboard uplink data link in the current missile data link system,Concatenated code was designed for channel code in missile data link system. RS( 255,239) code,interleaving( 17 × 15),and convolutional( 2,1,7) code were designed and synthesized,and the algorithm design of concatenated code was implemented via VHDL language,and the concatenated code was implemented on the FPGA chip.Through the simulation,the concatenated code can correct the error of 140 Bits,and effectively reduce the bit error rate of the missile data link. The application of concatenated code to the missile data link system can satisfy the design requirements of the weapon system.