| 发明名称 |
RF Carrier Synchronization and Phase Alignment Methods and Systems |
| 摘要 |
Systems and methods are disclosed for synchronization and positioning, one of which comprises determining a first phase offset for a known signal received at a first antenna by plotting a first arbitrary set of phase corrections and finding a phase offset corresponding to a greatest reflectional symmetry within the first arbitrary set of phase corrections, determining a second phase offset for a known signal received at a second antenna by plotting a second arbitrary set of phase corrections and finding a phase offset corresponding to a greatest reflectional symmetry within the second arbitrary set of phase corrections, calculating an angle of arrival for the known signal from the transmitter based on the first and the second phase offset for the known signal as received at the first antenna and the second antenna, and calculating a positioning vector for a direction of the transmitter. |
| 申请公布号 |
US2016219544(A1) |
申请公布日期 |
2016.07.28 |
| 申请号 |
US201615090338 |
申请日期 |
2016.04.04 |
| 申请人 |
PhasorLab, Inc. |
发明人 |
Park Joshua C. |
| 分类号 |
H04W56/00;G01S3/18;H04W64/00 |
主分类号 |
H04W56/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for synchronization and positioning, comprising:
receiving, at a first antenna at a receiver, a known signal generated at a transmitter; receiving the known signal at a second antenna at the receiver, wherein the known signal received at the second antenna is shifted in phase from the known signal received at the first antenna as a result of a path delay difference; determining a first phase offset for the known signal received at the first antenna by plotting a first arbitrary set of phase corrections and finding a phase offset corresponding to a greatest reflectional symmetry within the first arbitrary set of phase corrections; determining a second phase offset for the known signal received at the second antenna by plotting a second arbitrary set of phase corrections and finding a phase offset corresponding to a greatest reflectional symmetry within the second arbitrary set of phase corrections; calculating an angle of arrival for the known signal from the transmitter based on the first and the second phase offset for the known signal as received at the first antenna and the second antenna; and calculating a positioning vector for a direction of the transmitter. |
| 地址 |
Billerica MA US |
