TPC抗脉冲干扰性能研究

Study on Pulse Jamming Rejection Performance of Turbo Product Code

在军事通信等复杂通信环境中,脉冲干扰是一种常用的干扰方式,而TPC能同时纠正随机错误和突发错误且构造简单,特别适用于信道环境复杂的差错控制系统。根据二维TPC的编码结构和软输入软输出的迭代译码算法,理论分析了其能够抵抗的最大干扰脉冲宽度。计算机仿真结果表明,在脉冲宽度低于理论值时,TPC的译码误比特率不会受到明显影响,当脉冲宽度高于理论值时,译码性能会急剧下降。

Pulse jamming is a commonly used method of communication jamming in military communication and other complex communications. Turbo product codes（TPC） can correct random and burst errors with simple structure, so it is widely used in error control systems in complex noise channel. The max width of pulse jamming that TPC can rejection is theoretically researched on the basis of TPC coding structure and iterative soft-input soft-output decoding algorithm. The computer simulation indicates that the BER of TPC decoder will not be significantly affected when the interference pulse width is lower than the theoretical value, and will rise sharply when the interference pulse width is higher than the theoretical value.