基本信息:
- 专利标题： 估计无线电信号的到达时刻的方法和接收设备，用于定位的方法和系统
- 专利标题（英）：METHOD AND RECEIVER DEVICE FOR ESTIMATING THE INSTANT OF ARRIVAL OF A RADIO SIGNAL, LOCATING METHOD AND SYSTEM
- 申请号：CN201780068267.6 申请日：2017-10-30
- 公开(公告)号：CN109964140A 公开(公告)日：2019-07-02
- 发明人： 雅恩·曼奈柯斯 , 伊利·邦迪
- 申请人： UWINLOC公司
- 申请人地址： 法国图卢兹
- 专利权人： UWINLOC公司
- 当前专利权人： UWINLOC公司
- 当前专利权人地址： 法国图卢兹
- 代理机构： 北京汉德知识产权代理事务所
- 代理人： 王占军
- 优先权： 1660604 20161103 FR
- 国际申请： PCT/EP2017/077825 2017.10.30
- 国际公布： WO2018/083070 FR 2018.05.11
- 进入国家日期： 2019-05-05
- 主分类号： G01S1/04
- IPC分类号： G01S1/04 ; G01S1/24 ; H04B1/7163
The invention relates to a method of estimation, by a receiver device (12), of the instant of arrival of a radio signal corresponding to a packet of data modulated by a spreading sequence comprising Nc symbols of the same predetermined duration Tc, said radio signal being emitted in the form of pulses and received by said receiver device (12). Furthermore, said method comprises: - a step (100) ofsampling the radio signal according to a predetermined sampling period Te , so that the fractional part Pf of the quantity Nc*Tc/Te is non-zero, - a step (200) of calculating a sliding correlation function between the sampled radio signal and a reference sequence representative of said spreading sequence modulated by a pulse envelope, - a step (300) of detecting correlation peaks of said correlation function, said correlation peaks being associated respectively with detection instants, - a step (400) of estimating the instant of arrival of the radio signal as a function of the respective instants of detection of said correlation peaks as well as of said fractional part Pf.