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中国科学院大学学报 ›› 2013, Vol. 30 ›› Issue (6): 824-828.DOI: 10.7523/j.issn.2095-6134.2013.06.017

• 信息与电子科学 • 上一篇    下一篇

低轨卫星突发通信中MPSK信号的存在性检测

姜泉江1,2, 刘会杰1,2   

  1. 1. 中国科学院上海微系统与信息技术研究所, 上海 200050;
    2. 上海微小卫星工程中心, 上海 201203
  • 收稿日期:2012-12-25 修回日期:2013-04-24 发布日期:2013-11-15
  • 通讯作者: 姜泉江
  • 基金资助:

    上海市自然科学基金(12ZR1450000)资助

Presence detection of multi-phase modulated signal for LEO burst communications

JIANG Quan-Jiang1,2, LIU Hui-Jie1,2   

  1. 1. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;
    2. Shanghai Engineering Center for Microsatellites, Shanghai 201203, China
  • Received:2012-12-25 Revised:2013-04-24 Published:2013-11-15

摘要:

提出一种新的适合于低轨卫星突发通信系统的多相调制信号存在性检测方法,并完成其理论推导和仿真验证.针对应用,进行了检测概率和虚警概率的性能仿真.新方法使用E[(I2+Q2)2]作为检测量,具有简单的数字结构,便于星上实现.

关键词: 低轨卫星, 高动态, 突发通信, 多相调制, 信号存在性检测

Abstract:

A new signal presence detection method of MPSK signal, suitable for LEO burst communications, is proposed. The new method uses E[(I2+Q2)2] as the detection quantity, and it has simple digital structure and is convenient for onboard implementation. The theoretical derivation, simulation validation, and analysis for this method are presented. In the specific applications, the performances of detection probability and false-alarm probability are simulated.

Key words: LEO satellite, high dynamic, burst communications, multi-phase modulation, signal presence detection

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