首页>
外国专利>
Phase noise compensation apparatus and an OFDM system having the apparatus and method thereof
Phase noise compensation apparatus and an OFDM system having the apparatus and method thereof
展开▼
机译:相位噪声补偿装置以及具有该装置和方法的OFDM系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
Disclosed is a phase noise compensation apparatus to be applied to the OFDM system, comprising an ICI estimating unit for estimating inter carrier interference (ICI) using a pilot sub-carrier included in a reception signal, a estimating unit for estimating a common phase error (CPE), which is a phase noise from the reception signal as sampled, using the pilot sub-carrier, and estimating a transmission signal by removing the estimated CPE from the reception signal, a calculating unit for calculating phase change by the ICI in the reception signal by convoluting the ICI and the transmission signal, and an equalizer for compensating the calculated phase change by the ICI in the reception signal. Accordingly, phase noise can be exactly compensated by estimating as phase noise the result of convoluting a received signal where the CPE is removed in a frequency domain and the estimated ICI according to the present invention.
展开▼