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Description: 基于局域法多步预报模型的混沌时间序列预报模型，对多个典型混沌序列的仿真测试表明，本算法具有良好的多步预测精度和较好的抗噪声能力-based multi-step prediction model of chaotic time series prediction model, a number of typical chaotic sequence of simulation tests show that the algorithm has a good multi-step forecast accuracy and better noise immunity
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Size: 227923 |
Author: 蔡烽 |
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Description: 基于局域法多步预报模型的混沌时间序列预报模型，对多个典型混沌序列的仿真测试表明，本算法具有良好的多步预测精度和较好的抗噪声能力-based multi-step prediction model of chaotic time series prediction model, a number of typical chaotic sequence of simulation tests show that the algorithm has a good multi-step forecast accuracy and better noise immunity
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Size: 227328 |
Author: 蔡烽 |
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Description:
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Size: 7168 |
Author: 杨玉琴 |
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Description: 针对实际对象数学模型不明确而难以控制的问题,采用人工免疫网络的离散模
型与学习算法,将人工免疫系统与神经网络结构的优势相结合,提出了一种基于人工免疫
网络的模式识别算法,构造了对象识别的人工免疫网络模型.该算法综合了网络节点的定
位与参数调整以及对基函数的平滑因子实施调谐等功能,有效地解决了径向基函数
(RBF)神经网络模式识别的两个阶段任务,使模式识别的精度有较大的改进.采用两个不
同对象函数进行的仿真试验表明,该算法具有快速收敛性与较高的准确性.
-Mathematical model for the actual object is not clear and difficult to control the problem, the use of artificial immune network model and the discrete learning algorithm, artificial immune systems and neural networks combine the advantages of structure, an artificial immune network based on pattern recognition algorithms, Construction of the object identified by artificial immune network model. the algorithm is a combination of network nodes to adjust the position and parameters as well as the basis function implementation of the smoothing factor, tuning and other functions, to effectively solve the Radial Basis Function (RBF) neural network pattern recognition of two phase of the task, so that the accuracy of pattern recognition have greater improvements. the use of two different object functions of the simulation tests show that the algorithm has fast convergence and higher accuracy.
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Size: 114688 |
Author: 杨玉琴 |
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Description: FSK调制与解调，整个设计基于ALTERA公司的QuartusⅡ开发平台，并用Cyclone系列FPGA实现。所设计的调制解调器具有体积小、功耗低、集成度高、软件可移植性强、扰干扰能力强的特点,符合未来通信技术设计的方向。-FSK modulation and demodulation, the entire design is based on ALTERA' s development platform Quartus Ⅱ, and Cyclone series FPGA implementation. Designed by the modem with a small size, low power consumption, high integration, software portability, and strong interference immunity characteristics consistent with the design of future communication technology direction.
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Size: 575488 |
Author: 张继峰 |
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Description: Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced-Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced
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Size: 254976 |
Author: zohreh |
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Description: Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced-Presently FFT usage in GPS receivers has been a
topic of extensive study and many improved FFT-based
acquisition methods with averaging correlation
technique also have emerged. Although averaging
arithmetic can reduce the instant processing points of
FFT/IFFT, their noise performance is not promising. In
this paper a novel compress-sampling algorithm for
FFT-base GPS signal acquisition method is proposed.
It not only diminishes the size of FFT/IFFT core but
also enhances the noise immunity of receiver with its
“redundancy” structure. Simulation results of Matlab
testify that the computational complexity of the novel
algorithm has been efficiently suppressed to only
0.93 over the 2D search method in time domain. At
the same time the lower amplitude threshold obtained
from the novel method gets a lower false alarm
probability comparing with the direct DFT algorithm
with no compression. The noise immunity is enhanced
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Size: 87040 |
Author: zohreh |
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Description: 基于混沌理论构建的信号检测系统具有敏感微弱周期信号和对噪声有强免疫力的特点,用于微弱信号检测领
域优势明显。实验室内研究需要产生包括混沌噪声在内的各种噪声,并叠加微弱周期信号作为微弱信号检测系统的信号
源。介绍一种基于LabVIEW平台并结合Matlab计算模块的混沌噪声发生器,可产生典型的3种混沌噪声:Logistic,Duff2
ing,Lorenz形式。该发生器将LabV IEW易于接口实现和Matlab计算精度高、编程简捷的特点相结合,具有结构清晰、通用
性强、易于实现、使用方便的特点。
-Built based on chaos theory, sensitive signal detection system with weak periodic signal and has a strong immunity to noise characteristics of the area for weak signal detection have obvious advantages. Laboratory studies need to generate, including noise, chaos, including a variety of noise and superimposed weak periodic signal as a weak signal detection system, signal source. Introduction of a platform based on LabVIEW and Matlab calculation module with the chaotic noise generator can produce the typical three kinds of chaotic noise: Logistic, Duff2 ing, Lorenz form. The generator will be LabV IEW easy interface, and Matlab calculation of high accuracy, simple programming features combined with a clear structure and versatility, easy to implement, easy to use features.
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Size: 495616 |
Author: xlmm |
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Description: 基于复杂背景的人体手势识别，以及在噪声干扰下的抗干扰性测试-Based on complex background of human gesture recognition, as well as noise immunity under the test
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Size: 40960 |
Author: 小樱 |
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Description: 基于System View平台，实现卷积码编译码系统的设计与仿真，添加高斯噪声测试系统抗噪声性能-System View-based platform for encoding and decoding system of convolutional codes to achieve the design and simulation, adding Gaussian noise test system noise immunity
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Size: 685056 |
Author: 楚乐 |
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Description: 基于TCS230传感器的高精度颜色识别系统设计。实验结果表明：该系统以白色LED灯调白平衡，在密封和自然光条件下都具有准确的颜色识别性能和良好的抗干扰性。-TCS230 sensor based on high-precision color-coded system design. The results show that: the system to adjust white balance, white LED light, natural light in a sealed condition and have accurate color recognition performance and good noise immunity.
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Size: 290816 |
Author: 清风 |
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Description: NRF905无线通信芯片基础上，特做优化设计高性能低功耗，接收灵敏度高，抗干扰性强，集成度高，通信稳定-NRF905 wireless communication chip based on the design of special to do to optimize high-performance low-power, receiver sensitivity, immunity to interference, high integration, communication and stability
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Size: 11363328 |
Author: 李浩 |
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Description: 魏巍等人提出了一种基于灰度、邻域均值和邻域加权中值三维直方图的最大Renyi熵阈值分割算法。该方法无论在精度上还是抗噪性上都有明显提升。-Wei Wei, who based on gray-scale, neighborhood average and in the neighborhood weighted value of three-dimensional histogram of the maximum Renyi entropy threshold segmentation algorithm. The method in terms of accuracy and anti-noise immunity has improved significantly.
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Size: 653312 |
Author: 朱磊 |
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Description: 在图像测量等工程应用中,需要获得目标的高精度图像边缘信息.本文首先介绍了一种基于Facet模型的亚像素边缘检测算法,该方法具有抗噪能力强,定位精度高等优点,但是计算复杂度太高.针对此缺点,本文研究了一种改进算法,将其与Mallat的小波变换模极大算法有效的结合,不仅处理速度提高了10倍左右,而且所提取的边缘效果也有所改善.实验结果表明,本文的方法不仅能获得高精度的边缘信息,抗噪能力强,而且处理速度快。-Need to obtain the target image measurement and other engineering applications, high-precision image edge information. This paper first introduces a sub-pixel edge detection algorithm based on the Facet model, the noise immunity, high precision positioning, but the computational complexity too high. this shortcoming, this paper, an improved algorithm, Mallat wavelet transform modulus maxima algorithm effective combination, not only the processing speed of about 10 times, and extracted the edge effect is also improved. The experimental results show that this method can not only get to the edge of the high-precision, noise immunity, and processing speed.
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Size: 431104 |
Author: 王的 |
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Description: 当红外图像中包含较强噪声时, C-V 模型水平集分割方法会产生大量冗余轮廓 同时, C-V 水平集采用偏
微分方程( PDE) 实现, 存在计算量大、分割速度慢的缺点。为此, 本文提出了改进的快速算法, 该算法保留了C-V
模型的全局优化特性, 并通过窗口滤波整合图像邻域空间信息来构建曲线进化的外部速度, 从而提高C-V 模型
的抗噪性并减少分割中产生的冗余轮廓 采用基于双链表的快速水平集算法来实现曲线的演化, 去除了传统算
法中的重新初始化和PDE 求解的过程, 减少了迭代步数, 提高了分割的速度-Infrared image contains strong noise the CV model level set segmentation method will produce a large number of redundant outline CV level set partial differential equation (PDE), there are computationally intensive, split the shortcomings of slow. To this end, the paper proposes an improved fast algorithm, the algorithm retains the global optimization CV model and the integration of spatial information of image neighborhood filtered through the window to build the external speed curve evolution, thereby enhancing the noise immunity of the CV model and reduce redundant contour segmentation evolution of the curve to achieve fast level set algorithm based on the double-linked list, in addition to re-initialize the traditional algorithms and PDE solving process, reduce the number of iterations, to improve the segmentation speed
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Size: 855040 |
Author: jim |
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Description: 这个基于OpenCv的sift算法，很经典，适合初学者拿来学习，本代码能完成图像匹配功能，并有很好的抗噪能力。-This is sift based OpenCv the algorithm, very classic, suitable for beginners used to study the code to complete the image matching functionality, and good noise immunity.
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Size: 11270144 |
Author: 王浩 |
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Description: 为了采集准确的心电信号，设计了一套基于瞬时心率信号抗干扰测量的方法，针对微弱并易受干扰的心电采样信号，进行有效地硬件以及软件滤波，通过软件数字滤波算法，得到真实的心率信号-Set based on the instantaneous heart rate signal immunity measuring method to collect accurate ECG, ECG sampling signal for the weak and vulnerable to interference, hardware and software filtering, digital filtering algorithm through software, get real The heart rate signal
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Size: 407552 |
Author: JIANGLILY |
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Description: 对重分配小波尺度谱存在着时、频分辨率不能同时达到最佳及当振动信号中存在着能量较大的噪声时会降低其时频分布可读性的缺陷，提出一种基于参数优化和奇异值分解(SVD)提高重分配尺度谱时频分布可读性的方法。首先利用Shan—
non熵方法优化重分配尺度谱基函数的时间．带宽积(TBP)，克服其时、频分辨率不能同时达到最佳的缺陷，再对重分配尺度谱
进行SVD降噪降低噪声干扰影响，提高时频分布的可读性。最后用该方法对仿真信号和滚动轴承故障信号进行了分析，结果表明该方法的时频聚集性更好，抗噪能力更强，能更有效地识别强噪声背景下的机械故障特征。-Redistribution wavelet scale spectrum for the existence of time and frequency resolution can not be reached when the vibration signal is the best and the existence of large noise energy will reduce the time-frequency distribution readability defects is proposed based on parameter optimization and Singular value decomposition (SVD) to improve spectrum reallocation time-frequency distribution readability scale approach. Firstly, Shan-non entropy method to optimize re-allocation of the time-scale spectral basis functions. Bandwidth product (TBP), to overcome the time and frequency resolution can not achieve the best defect, and then the re-allocation of spectrum SVD scale noise reduce noise interference and improve the readability of time-frequency distribution. Finally, the method and the rolling bearing fault signal simulated signals were analyzed, the results show that the method of time-frequency aggregation better noise immunity stronger, can more effectively identify strong noise ch
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Size: 415744 |
Author: 张力 |
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Description: 基于自适应观测器和自抗扰控制的PMSM直接转矩控制-Based on adaptive observer and the immunity control all-digital fuzzy direct torque control
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Size: 1006592 |
Author: 岑冰 |
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Description: 免疫遗传算法流程为：
(1)随机产生初始父代种群A1
(2)根据先验知识抽取疫苗。
(3)若当前种群中已包含最佳个体，算法结束；否则进行以下步骤。
(4)根据抗体浓度和适应度进行复制。
(5)对当前第K代父代种群AK进行交叉操作，得到种群BK。
-Immune genetic algorithm process as follows: (1) randomly generated initial parent population A1 (2) vaccine based on a priori knowledge extraction. (3) If the current population already contains the best individuals, the algorithm ends otherwise, perform the following steps. (4) be reproduced in accordance with antibody concentration and fitness. (5) the population AK Present Generation K parent cross was obtained population BK.
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Size: 9216 |
Author: snowtiger |
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