Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system – By monitoring
Patent
1999-01-29
2000-09-26
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
By monitoring
342368, G01S 740, H01Q 326
Patent
active
06124824&
ABSTRACT:
A code division multiple access time division duplex communication system having an adaptive antenna array station communicates beamformed orthogonal code channels to a remote station. The remote station determines the amplitude and phase components of the received code channels and communicates the information back to the adaptive antenna array station which uses the information plus the beamform of the received signal in an adaptive antenna array station calibration process. By varying one of the beamforms received by the remote station, sufficient data points may be gathered to facilitate accurate calibration. The calibration procedure may be performed while voice or other digital information is communicated between the remote station and the adaptive antenna array station.
REFERENCES:
patent: 5546090 (1996-08-01), Roy, III et al.
patent: 5572519 (1996-11-01), Silverstein et al.
patent: 5771019 (1998-06-01), Wachs et al.
patent: 5809063 (1998-08-01), Ashe et al.
Chen Ying
Rao Yong
Wee Daniel
Xu Guanghan
Cwill Telecommunications, Inc.
Hellner Mark
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