中文摘要：

L频段宽带航空数据链系统（L-DACS1）是未来L波段航空数据通信系统的候选方案之一。这里基于L-DACS1系统协议内容,为了降低信道的噪声和畸变与多普勒频移的影响,采用具有良好差错控制能力的多模式RS编码进行信道纠错。通过仿真对多模式RS编码算法性能进行了分析,并通过FPGA实现验证了算法在L-DACS1系统中应用的有效性,结果表明,多模式编码器可以实时地调整模式,高效稳定地进行差错控制,满足高速传输仍保持稳定的要求。

英文摘要：

The L-band digital aeronautical communications system（L-DACS1）is one of the candidate schemes for the future L-DACS1.Aiming at L-DACS1 protocol,the multi mode RS encoder with good error control ability was used for channel error correction,so as to reduce the channel noise and the influence of distortion and Doppler shift.The performance of the multi-mode RS coding algorithm is analyzed by simulations.The feasibility of the algorithm implementation using FPGA in L-DACS1 was verified.The test results show that the multi-mode RS encoder can adjust coding rate,control error efficiently,and meet the requirements of high-speed stable transmission of L-DACS1.