发明授权
- 专利标题: Electronic tracking and ranging system
- 专利标题(中): 电子跟踪和测距系统
-
申请号: US12129464申请日: 2008-05-29
-
公开(公告)号: US07711477B2公开(公告)日: 2010-05-04
- 发明人: Kent Pearce , Teryl Pratt
- 申请人: Kent Pearce , Teryl Pratt
- 代理机构: Shlesinger, Arkwright & Garvey LLP
- 代理商 Glen L. Gross
- 主分类号: G01C21/00
- IPC分类号: G01C21/00
摘要:
An electronic tracked and ranging system is disclosed. Electronic tracked and ranging system applies interferometer principles to determine ranging distance from a monitor unit 10 to a tracked unit 12. In particular, the system transmits a monitor direct sequence spread spectrum (MDSSS) 52 from a monitor unit 10 to a tracked unit 12. Afterwards, tracked unit 12 transmits a tracked direct sequence spread spectrum (TDSSS) 56. Finally, monitor unit 10 receives TDSSS 56, performs a comparison to a reference MDSSS 52 locks signals between MDSSS 52 and TDSSS 56 and outputs distance between monitor unit 10 and tracked unit 12 using several phase comparisons. Multiple frequencies within MDSSS 52 are phase detected so as to increase accuracy of monitor unit 10 ranging distance to tracked unit 12.
公开/授权文献
- US20080224855A1 ELECTRONIC TRACKING AND RANGING SYSTEM 公开/授权日:2008-09-18
信息查询