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arXiv 1608.04070cs.ITmath.IT
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一种用于多制式军用通信接收机频带边缘估计的低复杂度频谱感知方案

A Low Complexity Spectrum Sensing Scheme for Estimating Frequency Band Edges in Multi-Standard Military Communication Receivers

S. J. Darak, A. P. Vinod, E. M-K. Lai

摘要:

在典型的多标准军用通信接收机中,需要快速且可靠的频谱感测单元来提取宽带输入信号中存在的多个信道(频带)的信息。在本文中,提出了一种基于我们在[5]中的可重构滤波器组的能量检测器,用于检测信道的边缘频率。仿真结果表明,在计算所有信道的边缘频率所需的时间和估计边缘频率的最大归一化误差之间的权衡。所提出的方法与现有的能量检测方法的复杂性和性能进行了比较。结果表明,对于一个固定数量的输入样本,误差随着时间的推移,在所提出的算法相比,其他方法的误差是恒定的。设计实例和仿真结果表明,在给定边缘频率估计误差的情况下,该方法的复杂度低于其他方法

英文摘要:

In a typical multi-standard military communication receiver, fast and reliable spectrum sensing unit is required to extract the information of multiple channels (frequency bands) present in a wideband input signal. In this paper, an energy detector based on our reconfigurable filter bank, in [5], for detecting the edge frequencies of the channels is proposed. Simulation results are presented to show the trade-off between the time required to calculate edge frequencies of all the channels and the maximum normalized error in estimating the edge frequencies. The proposed method is compared with existing energy detector methods for complexity and performance. It is shown that, for a fixed number of input samples, error decreases with time in the proposed algorithm as compared to other methods where error is constant. Design examples and simulations show that the complexity of the proposed method is lower than the other methods for a given error in estimating the edge frequencies

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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