弹载遥测现场可编程门阵列TPC编码模块

Missile-borne Telemetry TPC Coding Module Based on FPGA

针对远距离、高码速率、复杂环境下的弹箭飞行试验任务中,噪声干扰多导致误码率较高的问题,提出在现有遥测系统中,加入TPC信道编码技术来提高信号传输的可靠性。该方法具有编码结构简单,算法复杂度低、延时小,易于硬件实现等优点,可有效降低遥测数据传输过程中系统产生的误码率。试验结果表明,遥测数据经TPC编码后,误码率在10-4量级下,可将系统的编码增益有效提高5 dB左右。

Aiming at the problem of high bit error rate caused by noise interference in missile and arrow flight test tasks in long distance,high code rate and complex environment,this paper proposed to add TPC channel coding technology to the existing telemetry system to improve the reliability of signal transmission.This method had the advantages of simple coding structure,low algorithm complexity,small delay and easy hardware implementation,and could effectively reduce the bit error rate generated by the system in the process of telemetry data transmission.The experimental results showed that the coding gain of the system could be effectively increased by about 5dB at the BER of 10-4 after TPC coding.