| 摘要 |
PROBLEM TO BE SOLVED: To improve precision of an angle measurement by eliminating an angular ambiguity in the angle measurement system in which the angular ambiguity occurs because the constitution is simplified. SOLUTION: The angle measurement system comprises a 1st antenna and a 2nd antenna arranged apart to each other by more than 1/2 wave length while receiving the arrival signal, and a coming direction calculation means for calculating a candidate of coming direction. The coming direction calculation means selects the coming direction from among the candidates of coming directions, and outputs it when the multiple candidates of coming directions are calculated because of the angular ambiguity. COPYRIGHT: (C)2005,JPO&NCIPI
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