Withawat Tangtrongpairoj

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Radio over Fiber (RoF) is a promising solution for wireless access services by transferring the heterogeneous radio signal via the optical fiber link. However, RoF devices have nonlinear characteristics which create intermodulation products in system. The intermodulation distortion (IMD) interferes uplink RF signals in the presence of coupling between(More)
The Radio over Fiber (RoF) has been developed to transparently transfer the radio wireless signal using optical fiber link. However, RoF devices have nonlinear characteristic which generates intermodulation products. The intermodulation distortion (IMD) components interfere desired radio frequency signal, this is one of the problems in multi-channel RoF(More)
Landslides are one of the most dangerous natural disasters in Thailand. Areas with landslide hazard can be found in many parts of the country. Accurate rainfall data are required to assess chances of landslide in risky areas. However, most areas rely on rainfall data collected at certain places where equipment can be conveniently installed such as a(More)
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