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首页> 外文会议>IEEE International Symposium on Broadband Multimedia Systems and Broadcasting >Geometric Capacity Studies for DTV Transmitter Identification Using Kasami Sequences
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Geometric Capacity Studies for DTV Transmitter Identification Using Kasami Sequences

机译：使用Kasami序列的DTV发射器识别几何容量研究

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摘要

The transmitter identification of the DTV systems becomes crucial nowadays. Transmitter identification (TxED, or transmitter fingerprinting) technique is used to detect, diagnose and classify the operating status of any radio transmitter of interest A pseudo random sequence was proposed to be embedded into the DTV signal before transmission. Thus, the transmitter identification can be realized by invoking the cross-correlation functions between the received signal and the possible candidates of the pseudo random sequences. Gold sequences and Kasami sequences are two excellent candidates for the transmitter ID sequences as they provide a large family of nearly-orthogonal codes. In order to investigate the sensitivity of the transmitter identification in different topologies and Kasami sequences with different length, we present the analysis here for four different geometric layouts, namely circular distribution, doubly concentric and circular distribution, square array and hexagonal tessellation under the ENG (electronic news gathering) crews' working environment The covered area and the lowest received signal-to-interference ratio are considered as two essential parameters for the multiple-transmitter identification. It turns out to be that the larger the Kasami sequence length, the larger the received signal-to-interference ratio. Our new analysis can be used to determine the required Kasami sequence length for a specific broadcasting coverage.
机译：现在，DTV系统的发射机识别变得至关重要。发射机识别（TXED或发送器指纹识别）技术用于检测，诊断和分类感兴趣的任何无线电发射器的操作状态，提出伪随机序列以在传输之前嵌入到DTV信号中。因此，可以通过调用接收信号和伪随机序列的可能候选之间的互相关函数来实现发射机识别。金序列和Kasami序列是发射器ID序列的两个优秀候选者，因为它们提供了大家庭几乎正交的码。为了研究不同长度的不同拓扑和Kasami序列中发射器识别的敏感性，我们在此呈现四种不同的几何布局，即圆形分布，双方同心和圆形分布，方形阵列和六角形曲面细分（电子新闻收集）船员的工作环境覆盖区域和最低接收的信号到干扰比被认为是多变送器识别的两个基本参数。事实证明，KASAMI序列长度越大，接收的信号到干扰比越大。我们的新分析可用于确定特定广播覆盖的所需的Kasami序列长度。

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