| Summary: | 碩士 === 國立臺灣科技大學 === 電機工程系 === 104 === Recently wireless communications have been used pervasively in various environments. To make the best use of these applications, it is important to study the propagation channels corresponding these scenarios.
Generally, it requires massive measurement and analytical statistical data analysis to obtain comprehensive channel state information and to build an approximate channel model.
In this work, we develop a sliding correlator based channel sounder with Kasami sequences over a software defined radio platform, which is used in our channel measurement. Thanks to the software defined radio technology, the channel sounder has advantages of changing operation frequencies and spreading sequences, which is very convenient for channel measurement in various environments.
This thesis presents some measurement results of 900MHz UHF band indoor propagation, and their corresponding channel characteristics including power delay profile and RMS delay spread.
An indoor UHF small scale fading channel model in terms of tap delay line fashion is proposed based on the measurement results. Comparisons of computer simulation results using the channel model and the experimental data are also provided in this thesis.
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