| 摘要 |
The invention is directed to a method and apparatus for calibration of antenna arrangements comprising a plurality of antenna elements, for example an antenna arrangement for a GPS (Global Positioning System) Receiver or for a telecommunications receiver with GPS receiving capability. The method comprising the steps of: receiving a signal from a positioning satellite at a known position on a first and a second antenna element; determining a carrier to noise ratio for each received signal; comparing the carrier to noise ratios for each received signal to determine a magnitude calibration factor for said second antenna element compared to said first antenna element; combining said first and second received signals with equal magnitude; adjusting a phase offset of one of said signals; and determining a value of phase offset which results in a peak in carrier to noise ratio of said combined signal, wherein said offset is a phase calibration factor for said second antenna element compared to said first antenna element. |
