搜索资源列表
calcCFARthreshold.rar
- 经典恒虚警阈值计算 matlab下的代码 大家指正,Classical CFAR threshold calculation
An_Improved_of_spiht_Algorithm_Based_on_Variable_T
- 針對傳統小波變換過程復雜的缺點和SPIHT算法編碼過程重復運算、存儲量大的問題,首先分析了小波基和小波分解層數的選擇,然后提出了一種新的可變閾值的SPIHT算法,該算法利用可變閾值對SPIHT算法中不重要像素列表(LIP)和不重要系數列表(LIS)進行分類得到一種更有效的編碼算法.仿真結果表明,該算法的壓縮整體性能要好于SPIHT算法.-Wavelet transform for the traditional complex process shortcomings and repeat th
coherentBFSK
- Simulink model to verify the expected BER performance of a coherent BFSK system using the optimal threshold and proper reference frequencies for MFSK against the theoretical Pb using standard methodology. The first nulls spectral bandwidths for the B
CSS
- In this paper, author consider cooperative spectrum sensing in order to optimize the sensing performance and focus on energy detection for spectrum sensing and find that the optimal fusion rule is the half-voting rule. Next, the optimal detec
1.pdf
- 关于LDPC密度进化理论分析不规则码字阈值，合理优化度分布，构造优异性能的LDPC码。以及高斯近似分析阈值的比较-Analysis of Density Evolution on the irregular LDPC code word threshold, optimize the degree distribution, excellent performance of the LDPC codes constructed. And the Gaussian approximation th
2.pdf
- 关于LDPC密度进化理论分析不规则码字阈值，合理优化度分布，构造优异性能的LDPC码。以及高斯近似分析阈值的比较-Analysis of Density Evolution on the irregular LDPC code word threshold, optimize the degree distribution, excellent performance of the LDPC codes constructed. And the Gaussian approximation th
DSSS
- 提出一种全新的基于自适应能量判决门限的小波包变换抑制直接扩通信系统中窄带干扰的方法.-combine WPT and AET to wipe off jam,enact the threshold of every frequency area based on the power of DS signal
05552057
- The sensor nodes of a wireless grain depot surveillance system are deployed in crystal grids, which provide lot of valid position information. To avoid the energy consumption unbalance of the single hop routing model adopted by LEACH prot
onepro
- The code is self explanatory, but for the sake of clarity it is elaborated in this section. The code requires a set of input values for the parameters, for example, the value of “threshold signal”, which is the value of signal strength. Any sig
Phase-and-Frequency-Detector
- 针对锁频锁相器( Phase and Frequency Detector, PFD) 应用于低信噪比、大频偏的条件, 通过理论分析和仿真验证阐述了窗口类型对系统频偏捕获速度、范围、噪声门限及相位噪声抖动的影响机理. 推导出等效相位噪声功率谱密度的表达式. 证明了大窗口具有更低的噪声门限和更小的稳态相位抖动, 但捕获速度较慢. 为了提高捕获速度, 对鉴相器输出值取极性运算得到改进的PFD 算法. 新算法不仅能增加鉴相增益提高捕获速度 还可以减少等效噪声功率谱密度降低相位抖动 同时新算法不需要乘法
1
- 阈值基于matlab分析 程序经过实际操作研究 效果较好 非常合适-Very suitable threshold analysis program based on matlab after the actual operation better
Noise-reduction-algorithm
- 对设备进行故障诊断的主要方法就是测量故障 设备的振动或噪声, 并对其进行分析, 从而找出故障原因。然而振动或噪声信号中除了对分析故障有用的信息外, 还有大量的噪声成分。只有有效地滤除噪声, 才能获得有用的信息, 从而得到可靠的分析结论。传统的滤噪方法是将被噪声污染的信号通过一个滤波器, 滤掉噪声频率成分。但对于短时瞬态信号、非平稳信号、含宽带噪声的信号, 采用传统处理方法有着明显的局限性。小波变换为信号去噪提供了一种有效的方法, 小波阈值去噪具有传统方法不可比拟的优越性。但是小波分解的频域重
wsnmg
- 定位技术是无线传感器网络中关键的基础支撑技术, 目前提出了许多静态网络的节点定位算 法, 移动无线传感器网络的定位研究相对较少. 针对定位节点和参考节点随机运动的网络模型, 提出了 一个基于动态网格划分的蒙特卡罗定位算法. 算法中当接收的参考节点数超过一定阈值时使用最远距 离节点选择模型, 选出部分参考节点参与定位和信息转发, 节约能耗. 接着基于选择的或所有接收的参 考节点构建采样区域, 进行网格划分, 使用网格单元数计算最大采样次数, 在采样区域内采样并使用误 差补偿的运
Energy_detection_Threhsold_finding_monte1
- ENERGY DETECTION THRESHOLD
Energy_detection_simulation
- This code is to plot receiver operating characteristic curve for simple energy detection, when the primary signal is real Gaussian signal and noise is addive white real Gaussian. Here, the threshold is available analytically.
11
- In this paper, we analyze the performance of spectrum sensing based on energy detection. We do not assume the exact noise variance is known a priori. Instead, an estimated noise variance is used to calculate the threshold used in the spectrum
ED-LEACH
- Threshold sensitive routing protocol for WSN
xj
- 软硬阈值的语音增强处理，可直接运行出结果，可做语音增强算法参考-Hard and soft threshold speech enhancement processing, can be run directly the results, can be reference for speech enhancement algorithm
[5]-Sensitive-White-Space-Detection-with-Spectral
- This paper proposes a novel, highly effective spectrum sensing algorithm for cognitive radio and white space applications. The proposed spectral covariance sensing (SCS) algorithm exploits the different statistical correlations of the received
visual-grading-method
- 硕士论文（已经发表） 1，国内外研究现状。 2，猕猴桃现状及种植分析 3，基于价值增值理论确认阀值的方法 4，单果重图像的信息化 5，可视化标准分类 6，创新点与结论-Master s thesis (published) 1, the research status at home and abroad. 2, the kiwi present situation and the analysis of planting 3, based on the th