Experiments show that the improved system has better adaptiveness and robustness. 实践证明，改进系统对参数变化具有更强的自适应能力，显示出很强的鲁棒性。
In the article, we introduce the concatenated code, which is used in channel code to improve the system correction ability. 本文引入级联码，目的是为了将它应用于信道编码以改进系统的纠错性能。
