搜索资源列表
端点检测
- 用matlab实现短时能量和过零率的端点检测,并显示波形-using Matlab to achieve short-term energy and zero rate of endpoint detection and waveform display
signal_jiance_BPSK
- 包括了基于能量检测方法的信号检测,其中采用M2M4算法进行了噪声方差估计。本程序为MATLAB仿真,可以直接应用。-this program contains the energy-based signal detection method. and the M2M4 method is used to estimate the variance of the background noise.
energy-detection
- 本程序给出了认知无线电中的能量检测方法,并实现了在不同的虚警概率下的检测性能比较。-This procedure gives the method of energy detection of cognitive radio , and the comparison of detection performance at different false alarm probability .
DS-THEROY
- D-S证据理论的MATLAB代码函数文件 根据D-S理论,可以进行模式分类,消除不确定性。并附有能量检测的D-S判断函数文件、自己论文里的代码,希望对你有用-Code function file of D-S evidence theory in MATLAB. it can accomplish mode classification and eliminate uncertainty. besides that it includes that D-S operation in ener
Ed200307
- 能量检测,根据以URKOWITZ 在1967年发表的能量检测文章以及Digham 2003、Ghasemi 2007发表的一系列文章为参考, 在AWGN信道中,给定SNR下,先产生一个原始信号(单音或者BPSK基带信号),然后叠加高斯噪声, 再进行能量检测-Energy detection, according to URKOWITZ the energy released in the 1967 test articles, and Digham 2003, Ghasemi 2007 se
EnergyDetection
- 实现能量检测仿真,由main函数进行能量检测,psk_2实现BPSK调制,pdsnr计算出理论值,最后由main给出理论与仿真之间的画图比较。-Achieve energy detection simulation, the main function of the energy detection, psk_2 achieve modulation BPSK, pdsnr calculate the theoretical value, and finally given by the mai
EnergyDetectionAlgorithmInvestigationBasedonCooper
- :该文首先研究了单认知用户能量检测算法的检测性能和检测灵敏度与检测时长和噪声短时间内平均功率波 动性之间的关系,得出检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降的结论,在低信噪 比时尤为明显;针对检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降,提出了基于多用户 协同能量检测算法。-In this paper,detection performance and detection sensitivity with detection duratio
CRSystemInMatlab
- CR的常用物理层检测算法包括:匹配滤波检测、能量检测和循环平稳特征检测。-CR Common physical layer detection algorithm include: matched filter detection, energy detection and cyclostationary feature detection.
EnergyDetectionAlgorithmInvestigatioonCooperative.
- 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
ed
- 该代码实现了频谱感知中的能量检测方法,对于能量检测的认识能有更深入的了解-The code implements the energy spectrum sensing in detection methods, knowledge of the energy detection can have a better understanding of
Matlab-rayleigh
- Matlab能量检测在rayleigh衰落信道下的性能仿真,主要为虚警概率和误警概率的关系-Matlab energy detection in rayleigh fading channel the performance simulation, mainly for the false alarm probability and the relationship between the probability of false alarm
cr-energy-detection
- 认知无线电频谱检测中的能量检测模型的构建,以及产生不同信噪比的pf和pd的概率-Detection of Cognitive Radio Spectrum Detection Model for the energy and produce different signal to noise ratio of the probability pf and pd
abc
- 摘要:频谱检测技术是认知无线电中极其重要的环节。而协作式的频谱检测由于其良 好的检测性能日益受到人们的关注。基于能量检测,协作频谱检测的算法主要有:与 (AND)算法、或(OR)算法、计数算法、分区算法、似然比算法、线性加权算法和分布式 无线通信系统(DWCS)算法。分析表明,这些协作检测算法能够改善系统的检测性能、 减低干扰冲突、提高频谱利用率。-Knot current spectrum within the detection area, the main sorting
CR-MATLAB
- 用于认知无线电能量检测及频谱感知的matlab程序-Used for cognitive radio energy spectrum of detection and perception of matlab
差分能量检测
- 差分能量检测直扩程序,直扩的基础上加了差分编码和能量检测,而不是相关检测。(Differential energy detection DSSS, based on DSSS, adds differential encoding and energy detection instead of correlation detection.)
能量检测法源代码
- 能量检测法是一种比较简单的信号检测方法[1], 属于信号的非相干的检测, 直接对时域信号采样值求模,然后平方即可得到;或利用FFT转换到频域,然后对频域信号求模平方也可得到。它无需知道检测信号的任何先验知识,对信号类型也不作限制。 实际上,能量检测是在一定频带范围内作能量积累,如果积累的能量高于一 定的门限,则说明信号的存在;如果低于一定的门限,则说明仅有噪声。能量检 测的出发点是信号加噪声的能量大于噪声的能量。能量检测方法对信号没有作任何假设,是一种盲检算法。 此代码“利用FFT转换
energydetection
- 适合无线电频谱认知的初学者 可以运行得到pf与snr的关系曲线(useful for the beginner of radio spectrum cognition can get the relationship curve between PF and SNR)
NengLiangJianCe
- 认知无线电中的能量检测算法,基于单用户,多用户(Energy detection algorithm in cognitive radio based on single user and multi user)
CR-MATLAB
- 实现认知无线电中的循环检测和能量检测等。(Realization of cyclic detection and energy detection in cognitive radio)
脑电波检测
- 基于matlab的脑电波睡眠监测,根据功率能量,判断睡眠阶段(Matlab based EEG sleep monitoring, according to the power and energy, to determine the sleep stage.)