首页> 外国专利> SYSTEM AND METHOD FOR EXTRACTING SATELLITE TO GROUND LINK QUALITY USING SATELLITE TELEMETRY SIGNAL AND LOW COMPLEXITY RECEIVER

SYSTEM AND METHOD FOR EXTRACTING SATELLITE TO GROUND LINK QUALITY USING SATELLITE TELEMETRY SIGNAL AND LOW COMPLEXITY RECEIVER

机译:使用卫星遥测信号和低复杂性接收器提取卫星以接地链路质量的系统和方法

摘要

Disclosed methods of terrestrial station monitoring of downlink signal quality include receiving a sequence of samples of reference symbol slots of a downlink burst, and estimating a time offset between a local clock and a timing of a symbol pattern carried by the reference symbol slots, using a local copy of the reference symbol pattern. A corresponding time correction is applied to the sequence of samples to form time corrected samples of symbols carried by the reference symbol slots. A frequency offset between the time corrected samples of the symbols carried by the reference symbol slots and a local clock is estimated. A corresponding frequency compensation is applied to the time corrected samples, forming time/frequency compensated samples of the symbols carried by the reference symbol slots. A signal to noise plus interference ratio (SNIR) estimation data, and corresponding estimate of signal path, is generated, based on moments of the time/frequency compensated samples.
机译:所公开了下行链路信号质量的地站监测方法包括接收下行链路突发的参考符号时隙的样本序列,并使用参考符号插槽携带的局部时钟和符号模式之间的时间偏移。使用a参考符号模式的本地副本。将相应的时间校正应用于样本的序列以形成由参考符号槽携带的符号的时间校正样本。估计由参考符号插槽和本地时钟携带的符号的时间校正样本之间的频率偏移。将相应的频率补偿应用于时间校正的样本,形成由参考符号槽携带的符号的时间/频率补偿样本。基于时间/频率补偿样本的时刻,产生对噪声加干扰比(SNIR)估计数据的信号和信号路径的相应估计。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号