| 摘要 |
A technique uses "phase windup" to determine relative yaw of a craft from a plurality circularly polarized signals transmitted from one or more transmission sources. A first difference in carrier phase measurements taken simultaneously at time t<SUB>1 </SUB>is determined for first and second circularly polarized signals from a given transmitting source A second difference is then determined from simultaneous carrier phase measurements taken at time t<SUB>2</SUB>. A third difference, which is the difference between the first and second differences, is then used to determine the relative yaw based on a difference in wavelengths of the two signals. If more than one transmitting source is in view, a mean average of the third differences associated with the respective transmitting sources may be used to determine the relative yaw.
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