HF信道块式数据检测技术的研究

本文研究了一种适用于ＨＦＭＯＤＥＭ的短块式数据检测技术，该技术中使用已知的训练符号对信道特性进行跟踪并对未知数据进行检测，采用判决反馈的形式，可以减小数据块长度，进而采用一种简化的Ｃｈｏｌｅｓｋｙ矩阵分解的算法，计算机模拟表明；该方案能有效地消除高频信道上的码间串扰，适用于高速串行ＨＦＭＯＤＥＭ。

HF信道块式数据检测技术的研究

This paper describes a nonlinear short-block data estimation technique(NSBE)suitable for theHF modem,with which the known training symblos are used to track the channel characteristics and to detect theunknown data symbols.The adoption of the decision feedback type may reduce the length of the data block, sothat an algorithm of a simplified Cholesky matrix resolution is used. Computer simulation indicates that thisscheme facilitates to effectively eliminate the intersymbol interference in the HF channel and it can be applied tothe high-speed serial HF modem.