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- 计算FFT计算信号频率时 分辨率 f=fs/N ，嵌入式中由于存储空间有限 导致分辨率f不能提高 ，该算法使信号分辨率大大提高-FFT calculation when the signal frequency resolution f = fs/N, embedded in the resolution f not improve due to limited storage space, the algorithm makes the signal resolution is greatly
fdtd2D
- This MATLAB M-file implements the finite-difference time-domain solution of Maxwell s curl equations over a two-dimensional Cartesian space lattice comprised of uniform square grid cells. To illustrate the algorithm, a 6-cm-diameter metal cylindric
ImageEnhance
- 空间域、频域图像增强，包括基本灰度变换，直方图处理，空间平滑、锐化处理，理想、巴特沃斯和高斯滤波器，快速傅立叶变换等-Space domain, frequency domain image enhancement, including basic gray transform, histogram processing, spatial smoothing, sharpening, ideals, Butterworth and Gaussian filters, fast Fourier t
matlab
- 使用SGP模型进行轨道计算的matlab源码 使用两行星历TLE-Simplified perturbations models are a set of five mathematical models (SGP, SGP4, SDP4, SGP8 and SDP8) used to calculate orbital state vectors of satellites and space debris relative to the Earth-centered inertial coo
cpp
- 使用SGP模型进行轨道计算的C源码 使用两行星历TLE-Simplified perturbations models are a set of five mathematical models (SGP, SGP4, SDP4, SGP8 and SDP8) used to calculate orbital state vectors of satellites and space debris relative to the Earth-centered inertial coordina
Space-Qualified-Frequency-Sources-(Clocks)-for-GN
- Remote control is a good way to perform tasks in dangerous or hard-to-reach areas, or to broaden the number of users on a localized test-bed. The web technology on the Internet now appears as a natural, cheap way to ensure the communication link in
Untitled
- Okumura analyzed path-loss characteristics based on a large amount of experimental data collected around Tokyo, Japan. He selected propagation path conditions and obtained the average path-loss curves under flat urban areas. Then he applied several c
FreeIMU_Processing_20110724_1448
- The main application of FreeIMU is orientation sensing: by reading the data from the various sensors is possible to compute precisely the orientation of FreeIMU in the space. Recent boards also feature an high resolution barometer allowing to precise
Accelerometer
- The main application of FreeIMU is orientation sensing: by reading the data from the various sensors is possible to compute precisely the orientation of FreeIMU in the space. Recent boards also feature an high resolution barometer allowing to precise
MFC-image-processing
- 本压缩包中，集合了很多个算子，每个算子进行了不同的压缩包，需要学习的打开压缩包解压即可，里面涉及了图像空间域的预处理，也包括了道路识别的霍夫变换，还有频域空间的一些算法，关于波的一些处理-The compressed package, a collection of a number of operators, each operator had different compression package, you need to learn to open the archive decomp
uhd-master
- This paper investigates the Wiener and least mean square (LMS) algorithms in the design of traversal tap delay line filters for the purpose of compensating the effect of the communication channel. The designed equalizers remove the distortion
HOG_OpenCV
- HOG即histogram of oriented gradient, 是用于目标检测的特征描述子，该技术将图像局部出现的方向梯度次数进行计数，该方法和边缘方向直方图、scale-invariant feature transform类似，不同的是hog的计算基于一致空间的密度矩阵来提高准确率。Navneet Dalal and Bill Triggs首先在05年的CVPR中提出HOG，用于静态图像or视频的行人检测。-HOG i.e. histogram of oriented gradien
ofs005
- 通过布里渊频移的变化和散射功率的变化仿真构建布里渊频移变化量的空间分布和布里渊散射功率变化量的空间分布-Brillouin frequency shift change through changes and scattering power of simulation to build Brillouin frequency shift amount of space Brillouin scattering power distribution and the spatial distrib
wideband-DOA-estimation
- 提出了一种新的宽带DOA估计方法:频域子空间正交性测试方法(TOFS:Test of orthogonality of frequency sub- space)。该方法通过同时测试频域信号共同带宽内各频段噪声子空间与阵列流形之间的正交性来进行DOA估计。与宽带相干信号子空间方法不同,TOFS方法不需要任何初始值的预估及聚焦操作。与宽带非相干信号子空间方法也不同,TOFS方法同时测试各频段噪声子空间与阵列流形之间的正交性。本文仿真了TOFS与IMUSIC、CSSM、TOPS的性能比较。仿真结果表
LINGSHIL
- 本章在分析PMSM DTC系统存在的转矩和磁链脉动问题的基础上，深入研究了一种新型的控制方法，就是把磁链的扇区进行细分，仿真结果表明，在采用扇区细分控制策略以后，PMSM DTC能够获得良好的动态性能，转矩脉动问题也显著的减小-In the traditional direct torque control system,the system can produce torque ripple for that the system has margins of error in observa
pinlv
- 在具体进行频率域的各种处理滤波的前后,进行了傅立叶变换以及傅立叶反变换.这两个变换的过程就是将空间的信息分解为在频率上的表示,或者将频率上的表示转化为空间上的表示,两种变换是互为逆变换的.正是通过傅立叶正反变换的处理,才使得频率域上的处理可以用于图像的增强-After various processes in a specific frequency domain filter, carried out a Fourier transform and inverse Fourier transf
IG
- 文本分类中特征提取的代码。采用信息增益法，对文本的空间向量模型能达到有效降维。文件的输入形式必须是词号-词频形式。- Text Categorization feature extraction code. Using information gain method, the vector space model of the text to achieve effective dimensionality reduction. Enter the file must be in the f
DEMO
- 我们设计并实现了一种用于实时检测语音基频（pitch）、提取音乐旋律（melody）的软件。 语音或者音乐的基频是一种很重要的特征，可以用在很多研究与应用中。比如：用于普通话语音声调的识别和确认；语音流利度的分析；音乐旋律的提取用于哼唱检索等。读者可以参考我们之前的博文：http://blog.sciencenet.cn/home.php?mod=space&uid=907554&do=blog&id=723808-We design and implement software for r
pwwei
- 文章从关联规则挖掘的形式化定义出发,给出频集挖掘的解空间，对两大类算法中的几种经典算法进行了概述。并分析了它们的优缺点-From the formal definition of mining association rules! Given frequency set mining solution space, two types of algorithms for several classical algorithms are outlined. And analyzes their a
toc
- A fast Fourier transform (FFT) is an algorithm to compute the discrete Fourier transform (DFT) and its inverse. Fourier analysis converts time (or space) to frequency and vice versa an FFT rapidly computes such transformations by factorizing the DFT