检索结果-南通市图书馆

检索条件"主题词=Binary Offset Carrier"

共 2 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

An unfuzzy acquisition algorithm based on matched filtering for BOC(n,n)

An unfuzzy acquisition algorithm based on matched filtering ...

引用

第九届中国卫星导航学术年会

作者： Xiyan SU Fang HAO Yuanfa JI Weimin ZHEN Baoguo YU Xingli GAN Guangxi Key Laboratory of Precision Navigation Technology and Application Guilin University of Electronic Technology State key laboratory of satellite navigation system and equipment technology Key Laboratory of radio wave environment and modeling technology

Due to ambiguous acquisition caused by multiple peaks of auto-correlation function(ACF) of binary offset carrier(BOC) modulation technology,an Odd-even Correlation Side-peak Cancellation Technology(OCSCT) is proposed in this *** side-peak elimination is obtained by multiplying and transforming the odd-even branch and received *** order to make full use of the received signals and further improve the acquisition performance,a corresponding optimization algorithm is put *** methods of BPSK-LIKE,ASPe CT and this paper are analyzed and *** results show that the proposed side-peak elimination method can effectively solve the acquisition ambiguity problem,and reduce the span of the main peak to half a chip,which further improves the acquisition *** with the ASPe CT method,the acquisition sensitivity,and the peak to average ratio is increased by 2 dB,10%,*** the calculation amount is reduced by about 50.11%.

关键词： Satellite navigation binary offset carrier Unambiguous acquisition Side-peak elimination half chip

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Dual Estimate Tracking Based Multipath Mitigation Method for BOC signals

A Dual Estimate Tracking Based Multipath Mitigation Method f...

引用

第九届中国卫星导航学术年会

作者： Chuhan Wang Yang Gao Xiaowei Cui Mingquan Lu Electronic Engineering Department Tsinghua University

binary offset carrier(BOC) modulated signal, which will widely be used in next generation Global Navigation Satellite Systems(GNSS), has multi peaks in the auto-correlation function. In practical application condition, multipath and ambiguity are two main problems that can serious degrade the GNSS receiver ranging precision due to the feature of multi peaks. To solve the ambiguity problem, we typically adopt Dual Estimate Tracking(DET) that treats the subcarrier of BOC signals independently and tracks it by an additional loop. However, the multipath mitigation of DET structure is not specially considered yet due to the complex features of two-dimension cross-correlation function. In this paper, we propose a DET based multipath mitigation method for BOC signals, which mitigates the direct influence by an earlier phase Pseudo-Noise code instead of the prompt for subcarrier locked loop(SLL) and the indirect influence by the Double Delta(DD) method for delay locked loop(DLL). A simulated experiment based on a software receiver is designed to validate the feasibility of the multipath mitigation method and the results show that this method can significant reduce the short and mediate range delay multipath error at the expense of increasing the long range delay multipath error a little. This method can also achieve the compromise between multipath and noise performance by adjusting the local Pseudo-Noise code phase for different application scenarios.

关键词： mitigation binary offset carrier software receiver dual estimate tracking

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

全选清除本页清除全部题录导出标记到“检索档案”

共1页 << < 1 > >>

回到顶部

执行限定条件

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：