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Channel Equalization Method and Apparatus Based on Multi-Level Correlation LMS Algorithm for Single Frequency Network Repeater in Digital TV Broadcasting System Environment
Channel Equalization Method and Apparatus Based on Multi-Level Correlation LMS Algorithm for Single Frequency Network Repeater in Digital TV Broadcasting System Environment
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机译:数字电视广播系统环境中基于多级相关LMS算法的单频网络直放站频道均衡方法及装置
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摘要
PURPOSE: A channel equalization method and apparatus based on a multi-level correlation LMS(Least Mean Square) algorithm for a single frequency network repeater in a digital TV broadcasting system environment are provided to improve signal receiving property by reducing error signal due to a feedback signal. CONSTITUTION: A correlation value between an input signal and an error signal is calculated. A normalized value between 0 and 1 is produced by dividing the correlation value into a predetermined maximum correlation value. It is determined where the normalized value is included. Each tap coefficient about a feed forward LMS filter and a feedback LMS filter are updated by the step size.
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