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Goertzel算法是DTMF信号检测的核心,它利用二极点的IIR滤波器计算离散傅立叶变换值,快速有效的提取输入信号的频谱信息。-Goertzel algorithm algorithm is DTMF signal detection at the core, It uses two poles of the IIR filter calculating the discrete Fourier transform value rapid and effective extraction of
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频谱感知 多用户合作 能量检测 伪随机序列-Cooperation in the spectrum of energy-aware multi-user detection
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ofdm频谱特性 包括升余弦窗后 和加CP后的三种频谱特性比较-ofdm spectrum features include raised cosine window of post-processing after the three kinds of spectral characteristics of CP compared
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认知无线电中频谱感知技术的AM信号能量检测技术和周期平稳检测技术-Spectrum sensing in cognitive radio technologies AM signal energy detection and cyclostationary detection
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简要介绍了认知无线电中基于能量检测的频谱感知方法,在分析能量检测法原理和性能基础上,研究了噪声的不确定性对检测性能的影响. 仿真表明,能量检测法是一种简单、有效的频谱感知方法.-A brief introduction of cognitive radio spectrum sensing based on energy detection method, the analysis and performance of energy detection principle, based on t
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认为不同的认知节点信噪比( SNR)
导致了各节点本地检测结果的可靠性不同,故在此基础上提出了一种基于融合中心进行SNR比较
的认知无线电协作频谱检测算法。-That the different cognitive node SNR (SNR) has led to the detection results of the reliability of the local node is different on this basis it was proposed based on f
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一篇关于在被干扰条件下,认知无线电中的频谱检测。内容很新。-One on the interference conditions, the cognitive radio spectrum detection. Content is new.
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新一代移动通信(beyond 3G/4G),将提供高速的数据传输速率,以支持新业
务的不断涌现。如何在有限的频谱资源上实现高速率和大容量是未来移动通信系
统的关键因素之一。-The next generation of mobile communications will be able to provide a hi曲data
transfer rate to support the continuous emergence of new business.The key chal
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认知无线电协作频谱感知,能量检测,硬判决,Voting模式-cooperative spectrum sensing, energy detection, hard decision, Voting model
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信号稀疏度检测的matlab仿真程序。该方法能够检测出宽带信号的稀疏度,保证Compressive Sensing在宽带频谱检测中的准确运用。-Signal sparsity detection matlab simulation program. The method can detect the wideband signal sparsity ensure Compressive Sensing wideband spectrum sensing in the exact use.
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energy detection is the most common type of spectrum sensing because it is easy to implement and requires no prior knowledge about the primary signal
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This code performs wide band Cooperative Spectrum Sensing under various noise levels. A large number of primary users as well as secondary users are considered.The detection is power spectral density based . This project gives the lower bound for the
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here is a code for energy detection spectrum sensing whrtr i used thresholding to find a roc curve-here is a code for energy detection spectrum sensing whrtr i used thresholding to find a roc curve...
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Spectrum sensing using energy detection for Cognitive Radio applications
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Studies show that there are Three types of transmitter detection techniques in spectrum sensing in a cognitive radio system these include: matched filter, energy detection and cyclostationary featured detection technique.... this matlab code is for t
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Spectrum Sensing of OFDM signal for Cognitive Radio. Double threshold platform has been used. Autocorrelation of OFDM signal has been used as feature for detection purpose in AWGN channel scenario.
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Optimization of cooperative spectrum sensing using energy detection
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实现MIMO检测
MIMO(Multiple-Input Multiple-Output)技术指在发射端和接收端分别使用多个发射天线和接收天线,使信号通过发射端与接收端的多个天线传送和接收,从而改善通信质量。它能充分利用空间资源,通过多个天线实现多发多收,在不增加频谱资源和天线发射功率的情况下,可以成倍的提高系统信道容量,显示出明显的优势、被视为下一代移动通信的核心技术(The technology refers to transmitting and receiving antennas a
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energy detection spectrum sensing in matlab
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对802.11协议模拟的OFDM信号的两种速率6Mbps(BPSK调制)和12Mbps(QPSK调制)进行循环谱检测来验证对OFDM信号检测的可行性。(Cyclic spectrum detection is performed on two rates of OFDM signals simulated by the 802.11 protocol, 6 Mbps (BPSK modulation) and 12 Mbps (QPSK modulation) to verify the fea
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