开发一个单一的LMS循环三通道模拟自适应共现场干扰取消系统
Yunhao Jiang1,2, Minyang Li1,2, Siqi Liu1,2
1Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan, 430068, China.
Heliyon
|September 7, 2023
概括
这项研究引入了一种三通道模拟自适应宽带干扰取消系统 (AACWICS-3ch),用于对抗共同站点干扰. 它显著提高了干扰取消比率 (ICR),并减少了系统复杂性,即使有天线摇摆.
科学领域:
- 电气工程 电气工程
- 信号处理 信号处理
- 无线电频率 (RF) 工程
背景情况:
- 同站点干扰对飞机和卫星等平台构成重大挑战.
- 现有的数字取消方法对于因严重干扰引起的接收器前端和是不够的.
- 在数字化处理之前,模拟射频取消对于解决严重的共同站点干扰至关重要.
研究的目的:
- 开发一个模拟自适应的宽带干扰取消系统 (AACWICS-3ch),克服以前系统的局限性.
- 解决与现有的模拟自适应共站点干扰取消系统 (AACICS) 中双重LMS循环相关的复杂性问题.
- 为了研究在天线摇摆条件下的干扰取消性能,一个经常被忽视的因素.
主要方法:
- 开发一个三通道模拟自适应共站宽带干扰取消系统 (AACWICS-3ch),每通道使用单个LMS循环.
- 为AACWICS-3ch建立和分析同等模型,以确定稳定状态重量和干扰取消比率 (ICR).
- 深入分析干扰取消带宽,ICR,系统增益和天线摆幅之间的相关性.
主要成果:
- 与2通道系统 (AACICS-2ch) 相比,AACWICS-3ch显示了显著增强的干扰取消性能.
- 实现了超过30dB的最大改善ICR.
- 成功地减轻了双重LMS循环系统固有的复杂性问题,同时增加了通道数量.
- 通过模拟和实验测试验证了性能改进,即使在天线摇摆条件下.
结论:
- 开发的AACWICS-3ch为模拟射频协同站点干扰取消提供了卓越的解决方案.
- 该系统有效地提高了干扰取消带宽和比率,特别是在带有天线摇摆的动态环境中.
- 这种方法提供了一种更实用和更有效的方法,用于减轻各种平台的严重共站干扰.
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