• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Telemetry System Parameters and Bit Error Performance of NRZ and DM PCM/FM.
【24h】

Telemetry System Parameters and Bit Error Performance of NRZ and DM PCM/FM.

机译：NRZ和Dm pCm / Fm的遥测系统参数和误码性能。

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The work reported herein involved the experimental determination of optimum telemetry system parameters for the transmission of NRZ and DM PCM/FM. The objective was to compare the efficiency of the two PCM formats and to evaluate rules of thumb for determining system parameters. A PCM/FM telemetry system was simulated and optimum receiver IF bandwidth, RF transmitter deviation, and premodulation filter bandwidth for the transmission of NRZ and DM were determined so that NRZ and DM performance could be compared on an equivalent basis. NRZ and DM rules of thumb were examined to determine the system performance loss due to nonoptimum operation. The experiment verified other reported conclusions that show NRZ to be 3 dB better than DM for equicalent bit rates under their respective optimum conditons. Thus DM is not recommended for applications of maximum data transfer in a bandlimited RF system where noisy signals may be reseived.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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