| 北斗系统C波段导航信号调制方式及性能评估 |
| |
| 引用本文： | 倪育德,邹玲,刘瑞华,陈万通,秦哲,王凯. 北斗系统C波段导航信号调制方式及性能评估[J]. 系统工程与电子技术, 2022, 44(12): 3800-3810. DOI: 10.12305/j.issn.1001-506X.2022.12.25 |
| |
| 作者姓名： | 倪育德 邹玲 刘瑞华 陈万通 秦哲 王凯 |
| |
| 作者单位： | 1. 中国民航大学电子信息与自动化学院, 天津 3003002. 中国民航大学中欧航空工程师学院, 天津 300300 |
| |
| 基金项目： | 中央高校基本科研业务费专项基金(ZXH2011C013);国家重点研发项目(2016YFB0502402) |
| |
| 摘 要： | 针对C波段卫星导航信号严格的兼容性约束要求，探索性地将基于椭圆球面波函数的连续相位调制(continuous phase modulation based on prolate spheroidal wave functions, CPM-PSWF)应用于C波段导航。在分析了关键参数对CPM-PSWF信号功率谱特性影响后，初步筛选出4个CPM-PSWF子族作为C波段候选导航信号，并对其导航性能指标进行评估。在权衡C波段信号频谱兼容性和各导航性能指标基础上，提出将“QM2PSWF(10)C=6”且h=0.5的CPM-PSWF信号用作北斗系统C波段的导航信号。研究表明，所提出的CPM-PSWF信号频谱泄露少，带外衰减快，同时在码跟踪精度与抗多径性能方面，较当前C波段非CPM-PSWF候选导航信号更具竞争力。
|
| 关 键 词： | C波段导航 基于椭圆球面波函数的连续相位调制 兼容性 导航性能 |
| 收稿时间： | 2021-10-25 |
C-band navigation signal modulation mode and performance evaluation of BeiDou system |
| |
| Yude NI,Ling ZOU,Ruihua LIU,Wantong CHEN,Zhe QIN,Kai WANG. C-band navigation signal modulation mode and performance evaluation of BeiDou system[J]. System Engineering and Electronics, 2022, 44(12): 3800-3810. DOI: 10.12305/j.issn.1001-506X.2022.12.25 |
| |
| Authors: | Yude NI Ling ZOU Ruihua LIU Wantong CHEN Zhe QIN Kai WANG |
| |
| Affiliation: | 1. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China2. Sino-Europe Institute of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China |
| |
| Abstract: | In view of the strict compatibility constraint requirements of C-band satellite navigation signals, continuous phase modulation based on prolate spheroidal wave functions(CPM-PSWF) is exploratorily applied to C-band navigation. After analyzing the influence of key parameters on the power spectrum characteristics of CPM-PSWF signal, four CPM-PSWF sub-families are initially screened as candidate navigation signals for C-band, and their navigation performance indicators are also evaluated. On the basis of weighing the spectrum compatibility of the C-band signal and various navigation performance indicators, it is proposed to use the CPM-PSWF signal with "QM2PSWF(10) C=6" and h=0.5 as the C-band navigation signal of the BeiDou system. The research shows that compared with the current C-band non-CPM-PSWF candidate navigation signal, the proposed CPM-PSWF signal spectrum leakage is less, the out-of-band attenuation is faster, and the code tracking accuracy and anti-multi-path performance are more competitive. |
| |
| Keywords: | C-band navigation continuous phase modulation based on prolate spheroidal wave functions (CPM-PSWF) compatibility navigation performance |
|
| 点击此处可从《系统工程与电子技术》浏览原始摘要信息 |
|
点击此处可从《系统工程与电子技术》下载全文 |
