| 电子干扰下GPS接收机C/A码捕获性能的研究 |
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| 引用本文： | 袁俊,韩力. 电子干扰下GPS接收机C/A码捕获性能的研究[J]. 北京理工大学学报, 2002, 22(5): 626-629. DOI: 10.3969/j.issn.1001-0645.2002.05.025 |
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| 作者姓名： | 袁俊 韩力 |
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| 作者单位： | 北京理工大学,电子工程系,北京,100081;北京理工大学,电子工程系,北京,100081 |
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| 摘 要： | 研究电子干扰对卫星定位系统(GPS)接收机C/A码捕获性能的影响.分析了C/A码平均捕获时间和捕获时间方差,并且进行了基于连续波、宽带及部分频带3种干扰模式的模拟分析.分析结果表明,若针对GPS接收机的干扰功率超过一定强度后,平均捕获时间和捕获时间方差指标将急剧恶化.在相同的GPS接收机中频输出信干比下,连续波干扰较宽带干扰效果更加明显.
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| 关 键 词： | 卫星定位系统(GPS) C/A码 平均捕获时间 捕获时间方差 |
| 文章编号： | 1001-0645(2002)05-0626-04 |
| 收稿时间： | 2001-12-10 |
| 修稿时间： | 2001-12-10 |
A Study on the C/A Code Acquisition Performance of GPS Receivers Under Electronic Jamming |
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| YUAN Jun and HAN Li. A Study on the C/A Code Acquisition Performance of GPS Receivers Under Electronic Jamming[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2002, 22(5): 626-629. DOI: 10.3969/j.issn.1001-0645.2002.05.025 |
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| Authors: | YUAN Jun and HAN Li |
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| Affiliation: | Dept. of Electronics Engineering, Beijing Institute of Technology, Beijing100081, China;Dept. of Electronics Engineering, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | For studying the electronic jamming influence on the C/A code acquisition performance of GPS receivers, the mean acquisition time and variance of the acquisition of C/A code were analyzed. A simulation based on three jamming patterns, namely the CW, wide-band and part-band jamming patterns, has been carried out. The results have shown that both the mean acquisition time and variance of the acquisition will increase rapidly if the jamming power against GPS receivers is beyond a certain value. With the same signal-to-jamming ratio of intermediate frequency output, effect of CW jamming proved to be more predominant over that of wide-band jamming. |
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| Keywords: | GPS C/A code mean acquisition time variance of the acquisition |
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