• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Spacecraft Technology >Programmable Local Oscillator for Frequency Agile TCR Receivers of GEOSAT
【24h】

Programmable Local Oscillator for Frequency Agile TCR Receivers of GEOSAT

机译：用于地岩频率敏捷TCR接收器的可编程本地振荡器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Feature of changing the TTC uplink frequency by command from Ground Station, accords the satellite fleet operator the liberty to reposition the spacecraft into a different orbital slot during the lifetime of the spacecraft. It offers a solution to the problem of frequency interference that is major roadblock in a fixed frequency Receiver. For a double super heterodyne Receiver, change in the receive frequency essentially is to program the Local Oscillator LO frequencies such that the second Intermediate Frequency IF remains fixed. This paper describes how the e2v Frequency Synthesizer PE9763's Direct/Serial Programming capability is leveraged to design a Local Oscillator to achieve these ends.
机译：通过地面站的命令改变TTC上行链路频率的特点，符合卫星车队运营商的自由将航天器重新定位到航天器的寿命期间的不同轨道插槽。它提供了解决固定频率接收器中的主要障碍的频率干扰问题的解决方案。对于双超级外差接收器，接收频率的改变基本上是编程本地振荡器LO频率，使得第二中频如果保持固定。本文介绍了E2V频率合成器PE9763的直接/串行编程能力如何利用设计本地振荡器以实现这些目的。

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