基于能量峰值检测的UWB导频模式估计算法
n energy detection based TFC identification scheme for MB-OFDM UWB systems
本文针对同步估计的导频模式依赖性，提出基于能量峰值检测的导频模式识别方法。接收机在接收到第一个导频符号后，计算该符号能量，并以该能量的70%作为门限，继而计算与第一个接收导频符号相隔多个符号间隔的一个符号周期内的符号能量，并与门限阈值相比对，判断所采取的发送导频模式。该方法的提出避免了相关峰值检测法的弱抗噪声性，为导频识别提供了可行的研究方案，在TFC1、TFC3、TFC5的导频模式结构下，都可以有效识别当前采取的导频模式。
pattern recognition method was first proposed based on derivative of energy peak detection. Receiver calculates energy of the first received pilot symbol. 70% of the energy is taken as the threshold. Then energy of a symbol period of several symbol periods distance away from the first pilot symbols is computed and compared with the threshold. Matching the output of pilot symbols energy with different patterns, preamble modes could be estimated. The proposed method avoids weak noise resistance of peak detection, which could effectively distinguish preamble modes of pilots, no matter with TFC1, TFC3, or TFC5.
钱志鸿、王雪
无线通信通信
导频识别能量检测MB-OFDM UWB
FC identificationenergy detectionMB-OFDM UWB
钱志鸿,王雪.基于能量峰值检测的UWB导频模式估计算法[EB/OL].(2017-05-02)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201705-39.点此复制
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