To effectively operate and maintain an existing single frequency network (SFN), the advanced television systems committee (ATSC) 3.0 transmission system has utilized a transmitter identification (TxID) technique. The TxID technique aims is to obtain the channel impulse response (CIR) of each transmitter independently to support the adjustment of the relative power level and delay offset of individual transmitters. The professional receiver can detect such CIR, but a commercial ATSC 3.0 receiver does not need to be necessarily decoded the TxID signal. Also, according to the ATSC 3.0 standard, the TxID signal is embedded into the preamble signal with an appropriately low injection level (IL), such that the impact on the preamble reception is negligible. This paper proposes an efficient TxID signal detection algorithm to enhance the individual CIR detection performance during the TxID analyzing process. The simulation results indicate that the proposed TxID signal detection algorithm can offer better individual CIR detection performance as compared to the conventional TxID signal detection algorithms, even though the IL of TxID signal is low.

中文翻译：

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ATSC 3.0 单频网络的发射机识别信号检测算法


为了有效地操作和维护现有的单频网络（SFN），高级电视系统委员会（ATSC）3.0传输系统利用了发射机识别（TxID）技术。 TxID技术的目的是独立地获得每个发射机的信道脉冲响应(CIR)，以支持各个发射机的相对功率电平和延迟偏移的调整。专业接收器可以检测到此类CIR，但商用ATSC 3.0接收器不一定需要解码TxID信号。此外，根据ATSC 3.0标准，TxID信号以适当低的注入电平(IL)嵌入到前导信号中，使得对前导接收的影响可以忽略不计。本文提出了一种高效的TxID信号检测算法，以增强TxID分析过程中的单独CIR检测性能。仿真结果表明，即使 TxID 信号的 IL 较低，与传统的 TxID 信号检测算法相比，所提出的 TxID 信号检测算法也可以提供更好的单独 CIR 检测性能。