箭载电力线通信技术可以有效简化箭上电缆网,降低箭载控制系统的体积和重量.应用极化码可以有效降低箭载电力线通信的误码率.通过对箭上电力线信道进行建模,仿真了极化码在箭载电力线信道下的性能.设计了基于导频的比特信道估计算法,避免了探测序列的发送,通过仿真验证了该方法的鲁棒性;基于极化码的极化信道可靠性分布,提出Polar-LDPC部分级联码编码方案,仿真结果表明,该方案可以以较低的时间代价获得较高的误码率性能提升,非常适合应用于箭载电力线通信.%Cable net on rocket can be simplified effectively by applying powerline communication technology which could significantly reduce the volume and weight of control system.The application of Polar code can effectively reduce the error rate of power line communication.By modeling the rocket powerline channel,the performance of the Polar code under the rocket powerline channel is simulated.The bit-channel estimation algorithm based on pilot is designed to avoid the transmission of probe sequence.Based on the Polarimetric channel reliability distribution of Polar codes,a Polar-LDPC partial concatenated code scheme is proposed.The simulation results show that this scheme can obtain higher performance of bit error rate with lower time cost,which is very suitable for applying to rocket powerline communications.
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