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许多国家正在进行下一代数字地面广播的研究,以便提高大容量内容服务,如超高清。本文设计了译码算法的LDPC码,它重复使用双极化MIMO传输信道响应,进行对数似然比(LLR)的计算,并在计算机中进行仿真测试,验证为可行。许多国家正在进行下一代数字地面广播的研究,以便提高大容量内容服务,如超高清(SHV)。在本文中,提出了大容量传输技术,使用超多层(例如,1024QAM或4096QAM)正交频分复用(OFDM)技术和双极化多输入多输出技术(MIMO)。MIMO(多输入多输出)系统通过
Many countries are conducting research on the next generation of digital terrestrial broadcasting in order to improve high-volume content services such as ultra-high definition. In this paper, the LDPC code of decoding algorithm is designed. It repeatedly uses the response of dual-polarized MIMO transmission channel to calculate the LLR, and simulates and tests it in computer. Many countries are conducting research on the next generation of digital terrestrial broadcasting in order to improve high-volume content services such as ultra-high definition (SHV). In this paper, large-capacity transmission technologies are proposed using ultra-multi-layer (eg, 1024QAM or 4096QAM) Orthogonal Frequency Division Multiplexing (OFDM) technology and dual polarization multiple input multiple output (MIMO) technology. MIMO (Multiple Input Multiple Output) system