Jae Choong Han

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—A joint carrier frequency synchronization and channel estimation scheme is proposed for orthogonal frequency-division multiplexing (OFDM) system. In the proposed scheme, carrier frequency synchronization and channel estimation are performed iteratively via the expectation–maximization (EM) algorithm using an OFDM preamble symbol. Moreover, we analytically(More)
Early blight, caused by Alternaria solani, is a foliar disease of cultivated tomatoes, affecting both tomato yield and quality. Boscalid was first introduced to China in 2008 to control tomato early blight. However, knowledge on the sensitivity of A. solani to boscalid is lacking after 5 years of field application. In this study, 100 A. solani isolates were(More)
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