摘要
以往的文献中,多用群时延来分析TT&C的测距误差,这种方法不够准确和全面。本文采用幅、相频率特性和相位波动特性来分析TT&C信道中的测距误差。详细讨论了由于信道频率特性和相位波动特性变化产生的测距误差,给出了测距侧音相位的数学表达式。运用这些公式可以计算出这些因素对测距漂移误差的影响,提高测距精度。
Many published papers analysed range error by using group delay , it is not accurate enough . This paper uses frequency character and phase fluctuating character to analyse range error of TT＆C systems, and gives out formulas. Using these formulas, the factors that having influence on range error can be calculated and range accuracy can be improved. Above conclusion has been tested and applied in TT＆C systems for years.
出处
《电讯技术》
2005年第5期88-91,共4页
Telecommunication Engineering
