Invention Grant
US09319840B2 Method for estimating the distance of a receiver from a radio transmitter, relative methods for calculating the position of a mobile terminal, mobile terminal and localization device
有权
用于估计接收机与无线电发射机的距离的方法，用于计算移动终端，移动终端和定位设备的位置的相对方法
- Patent Title: Method for estimating the distance of a receiver from a radio transmitter, relative methods for calculating the position of a mobile terminal, mobile terminal and localization device
- Patent Title (中): 用于估计接收机与无线电发射机的距离的方法，用于计算移动终端，移动终端和定位设备的位置的相对方法
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Application No.: US13982997Application Date: 2012-02-27
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Publication No.: US09319840B2Publication Date: 2016-04-19
- Inventor: Pietro Porzio Giusto
- Applicant: Pietro Porzio Giusto
- Applicant Address: IT None (TO)
- Assignee: SISVEL TECHNOLOGY S.R.L.
- Current Assignee: SISVEL TECHNOLOGY S.R.L.
- Current Assignee Address: IT None (TO)
- Agent Workman Nydegger
- Priority: ITTO2011A0168 20110225
- International Application: PCT/IB2012/050900 WO 20120227
- International Announcement: WO2012/114320 WO 20120830
- Main IPC: H04W24/00
- IPC: H04W24/00 ; H04W4/02 ; G01S11/02 ; H04W64/00
Abstract:
A method for estimating the distance (d) of a receiver (102) from a radio transmitter (101) includes the steps of: receiving (602) radio signals (103, 701) irradiated by the transmitter (101), which include components from which at least three tones (1,2,3,4) are extracted, each having a different frequency; measuring (606) a first phase difference (Δφ21) between first two tones (1, 2) of the at least three tones, whose frequencies (f1, f2) have a first spacing, and measuring a second phase difference (Δφ43) between second two tones (3, 4) of the at least three tones, whose frequencies (f3, f4) have a second spacing, wherein one of the first spacing or second spacing is greater than the other; estimating (607, 611, 613) the distance (d) on the basis of the first phase difference (Δφ21) and the second phase difference (Δφ43).
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