Feature Detector for DVB-T Signal in Multipath Fading Channel
Feature Detector for DVB-T Signal in Multipath Fading Channel
复制标题
多径衰落信道中 DVB-T 信号的特征检测器
DOI：
10.1109/crowncom.2007.4549802
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
F. Chin
中科院分区：
文献类型：
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作者：
Loo Peng Goh;Z. Lei;F. Chin
在本文中，数字电视信号的检测进行了研究，因为有很强的动机，以更好地利用空闲的电视频道，以提高频谱效率，在IEEE 802.22无线区域网络（WRAN）的国际标准活动的努力。研究了DVB信号的循环平稳特性，提出了一种鲁棒的单周期检测器（SCD）来解决目前广泛使用的能量检测器（艾德）易受噪声影响的问题。由于实时实现的复杂度问题，提出了一种盲双峰（BTP）检测器，以近似SCD的性能，同时保持低的复杂度ED。
In this paper, detection of digital TV signals is studied since there is strong motivation to better utilize the idle TV channels to improve spectral efficiency, as seen in the efforts of IEEE 802.22 Wireless Regional Area Networks (WRAN) international standard activities. Cyclostationary feature of DVB signals is explored so that the robust single-cycle detector (SCD) can be employed to handle the problem of noise uncertainty, to which the widely used energy detector (ED) is susceptible. Due to complexity concerns for real-time implementation, a blind twin peak (BTP) detector is proposed to approximate the performance of SCD while keep the complexity as low as ED.