首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >Effects of CW Interference on Narrow-Band Second-Order Phase-Lock Loops
【24h】

Effects of CW Interference on Narrow-Band Second-Order Phase-Lock Loops

机译:连续波干扰对窄带二阶锁相环的影响

获取原文
           

摘要

This paper describes an experimental study of the effect of continuous wave (CW) interference and white noise on a second-order phase-lock loop. The reciprocal of the loop mean-square phase error is used as an index of performance, and the effect of interference levels that do not cause cycle skipping or loss of lock is described in terms of this index. Loop thresholds are determined by measurement of cycle-skipping rates. Stationary or slowly-sweeping CW interference caused a degradation in loop threshold of roughly 3 dB for every 6 dB of interference power above the noise power level. The effective loop signal-to-noise ratio was decreased approximately 1 dB at interference-to-noise power ratios of -3 dB. Interference levels equal to the signal level consistently caused loss of lock, regardless of the loop signal-to-noise ratio.
机译:本文描述了连续波(CW)干扰和白噪声对二阶锁相环影响的实验研究。环路均方相位误差的倒数用作性能指标,并以此指标来描述不会引起周期跳跃或失锁的干扰水平的影响。循环阈值通过测量循环跳过率来确定。固定或缓慢扫频的CW干扰会导致环路阈值在高于噪声功率电平的每6 dB干扰功率中下降大约3 dB。在-3 dB的干扰噪声功率比下,有效环路信噪比降低了约1 dB。不管环路的信噪比如何,等于信号电平的干扰电平始终会导致锁定丢失。

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