专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09201148B1 Timing error detector for adverse channel conditions 有权
标题翻译：定时误差检测器，用于不利的信道条件
公开(公告)号：US09201148B1
公开(公告)日：2015-12-01
申请号：US12785822
申请日：2010-05-24
申请人： Yihong Qi , Jianwei Bei , Xiaotao Xu , Victor Lin
发明人： Yihong Qi , Jianwei Bei , Xiaotao Xu , Victor Lin
IPC分类号： H04B1/00 , G01S19/24 , H04B1/7075
CPC分类号： G01S19/24 , G01S19/30 , G01S19/37 , H04B1/7075 , H04B2201/70715
摘要： In a receive system, a plurality of correlators correlate a received signal with a plurality of delayed versions of a reference signal to generate a plurality of correlator outputs. A timing error detector estimates an optimal timing based on a set of correlator outputs, and determines a timing error based on (i) the estimated optimal correlation point and (ii) an existing timing, such that the timing error is hard or soft limited between two positive thresholds and two negative thresholds.
摘要翻译：在接收系统中，多个相关器使接收信号与参考信号的多个延迟版本相关，以产生多个相关器输出。定时误差检测器基于一组相关器输出来估计最佳定时，并且基于（i）估计的最佳相关点和（ii）现有定时来确定定时误差，使得定时误差是硬的或软限于两个正阈值和两个负阈值。

2. 发明授权

US08675712B1 Zero delay reduced memory GPS PRN code interpolation 失效
标题翻译：零延迟减少内存GPS PRN代码插值
公开(公告)号：US08675712B1
公开(公告)日：2014-03-18
申请号：US13080955
申请日：2011-04-06
申请人： Xiangdong Jin , Mao Yu , Jianwei Bei , Xiaotao Xu
发明人： Xiangdong Jin , Mao Yu , Jianwei Bei , Xiaotao Xu
IPC分类号： H04B1/00
CPC分类号： G01S19/254 , G01S19/30
摘要： In accordance with the teachings described herein, system and methods are provided for a GPS PRN code interpolation scheme with a reduced memory requirement. An example GPS receiver system may include a memory, a local PRN code generator, and an interpolator. The memory may be used to store GPS PRN code received from a global positioning satellite. The local PRN code generator generates a replica PRN code having a repeating code that includes at least a first epoch and a second epoch. The interpolator determines an offset point in the first epoch of replica PRN code and interpolates the replica PRN code at a predetermined sample rate to generate an interpolated replica PRN code for use in correlating with the GPS PRN code.
摘要翻译：根据本文所述的教导，为具有减少的存储器要求的GPS PRN码插值方案提供了系统和方法。示例性GPS接收机系统可以包括存储器，本地PRN码发生器和内插器。存储器可以用于存储从全球定位卫星接收的GPS PRN码。本地PRN代码生成器生成具有至少包括第一纪元和第二纪元的重复代码的副本PRN代码。内插器确定复制PRN码的第一纪元中的偏移点，并以预定采样率内插副本PRN码，以产生用于与GPS PRN码相关的内插副本PRN码。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式