| 我国未来卫星导航信号的优先选择——BOC调制信号 |
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| 引用本文： | 王先发,禹化龙,张碧雄. 我国未来卫星导航信号的优先选择——BOC调制信号[J]. 中国电子科学研究院学报, 2009, 4(3) |
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| 作者姓名： | 王先发 禹化龙 张碧雄 |
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| 作者单位： | 中国电子科技集团公司第27研究所,郑州,450047;中国电子科技集团公司第27研究所,郑州,450047;中国电子科技集团公司第27研究所,郑州,450047 |
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| 摘 要： | 对BOC调制信号的产生、谱特性、自相关、码跟踪和接收处理方法进行了分析。结果表明，与BPSK信号相比，该信号可以实现频段共用，同时实现频谱分离，具有较强的抗干扰能力；在相同码速率条件下，其相关函数曲线更陡峭，具有更高的码跟踪精度和更好的多径分辨能力；采取有效处理方法可以消除BOC信号相关函数中多峰造成的模糊问题。鉴于BOC信号的优点，建议我国未来卫星导航信号优先选用该信号。
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| 关 键 词： | BOC调制信号 抗干扰 抗多径 相关函数 捕获 跟踪 卫星导航 |
Preference of Signal of Future Satellite Navigation System in China:BOC Modulation Signal |
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| WANG Xian-fa,YU Hua-long,ZHANG Bi-xiong. Preference of Signal of Future Satellite Navigation System in China:BOC Modulation Signal[J]. Journal of China Academy of Electronics and Information Technology, 2009, 4(3) |
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| Authors: | WANG Xian-fa YU Hua-long ZHANG Bi-xiong |
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| Affiliation: | The 27th Research Institute of CETC Zhengzhou 450047;China |
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| Abstract: | The generation,frequency spectrum and power spectrum density of a binary offset carrier(BOC)modulation signal is introduced.Autocorrection,code tracking,receiving and processing characteristics of BOC are also analysed.The result shows that compared to BPSK,BOC signal can realize the separation of frequency spectrum and have the better anti-jamming ability at same time.With sharper function curve,BOC signal can get better precision of code tracking and multi-path resolution ability in condition of the same ... |
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