| 摘要 |
PROBLEM TO BE SOLVED: To highly accurately and surely estimate a location of a radio station when estimating the location of the radio station, out of an area, in multi-hop communication. SOLUTION: A radio station that has received a radio beacon signal, measures the signal strength of the radio beacon signal for each radiation beam pattern to create a first table, searches for information of a radiation beam pattern with the maximum signal strength based on the first table to create a second table, repeats the creation of the second table for each radio station to create the second table and redirects a radio signal containing the second table to a radio station to a transmission source. If location coordinates of first and second radio stations are known, based on the location coordinates of the first and second radio stations and the second table, location coordinates of a third radio station are computed and based on location coordinates of the second and third radio stations and the second table, location coordinates of a fourth radio station within transmission areas of the second and third radio stations are computed. COPYRIGHT: (C)2006,JPO&NCIPI
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