| Summary: | 碩士 === 義守大學 === 電子工程學系 === 92 === GSM communication already well developed in recent years, and there are many researchers studied how to locate using GSM system. It gives us more and more convenient life and useful information, And also supports emergency requirement.
In this thesis we used TA value which was supported by GSM/3G system. And then we studied microwave’s RMS time delay spread in different environment. We used different environment parameters to describe physical propagation model in specified environment. This thesis used the numerical method to separate twenty-eight environments with different distance. We compare different results to get the most accurately value. In this thesis we improve effective region ratio on TA locating scheme. In this thesis the measurement data is base on Kaohsiung City and Kaohsiung County, We improved effective region ration up to 85.73% in this thesis.
(Key Word: TA, RMS Time Delay Spread , GSM)
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