| Summary: | 碩士 === 逢甲大學 === 資訊電機工程碩士在職專班 === 98 === Taiwan is located at the west side of the Pacific Ocean, and across the Taiwan Strait is the Fujian Province of Mainland China. The center of Taiwan from north to south is linked by a towering mountain, surrounded by sea, and therefore, Taiwan possessed a very changeable weather characteristic. A change in weather will results in a complex and unstable environment, for example: the diurnal (day and night) and seasonal effects, the change in regional area, meteorology effects, monsoon rain, typhoon, afternoon convection, and other exceptional phenomenon will affects the environment within the troposphere.
Since the weather is so changeable, the propagation characteristics of VHF/UHF bands within a line-of-sight path in the troposphere are valuable, especially for broadcasting of FM radio (around 100 MHz) and Digital TV (around 500 MHz). A collection of these measured data is required for further studies, so as to analyze the influences on these two bands under different weather conditions (especially during severe weather conditions). Hence, besides the academic value, the results obtained will also benefits the management, applications and developments of wireless communication for the future, such as the choosing of a new location for radio station, the tilting angle of the transmitting antenna, study of the interferences, efficiently managing the use of spectrum, and supervising the radio waves within a certain region.
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