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目前显示的是标签为“Orthogonal Frequency Division Multiplexing”的博文

Hard Decision-Based PWM for MIMO-OFDM Radar

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53866#.VNm0eSzQrzE Author(s)   Omar Daoud Affiliation(s) Communications and Electronics Engineering Department, Philadelphia University, Amman, Jordan . ABSTRACT For the purpose of target localization, Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) radar has been proposed. OFDM technique has been adopted in order to a simultaneous transmission and reception of a set of multiple narrowband orthogonal signals at orthogonal frequencies. Although multi-carrier systems such as OFDM support high data rate applications, they do not only require linear amplification but also they complicate the power amplifiers design and increase power consumption. This is because of high peak-to-average power ratio (PAPR). In this work, a new proposition has been made based on the Pulse Width Modulation (PWM) to enhance the MIMO-OFDM ...