Location:
Search - amplitude map
Search list
Description: 接法又称周期图法，它是把随机序列x(n)的N个观测数据视为一能量有限的序列，直接计算x(n)的离散傅立叶变换，得X(k)，然后再取其幅值的平方，并除以N，作为序列x(n)真实功率谱的估计。
-Connection also known as cycle map, it is random sequence x (n) N observational data as a sequence of limited energy, direct calculation x (n) the discrete Fourier transform, in X (k), then the lesser of the square of the amplitude and divided by N, as the sequence x (n) real power spectrum estimation.
Platform: |
Size: 8992 |
Author: 梁宏波 |
Hits:
Description: 第一幅图被称作曼德勃罗特集，曼德勃罗特集的数学模型非常简单。假设有复数Z和μ，用下式迭代计算：Z=Z2＋μ，由于μ的取值不同，经过若干次数迭代以后Z的幅值可能趋向无穷，也可能保持有界，曼德勃罗特集就是那些使Z保持有界的μ的集合，把μ在复平面上的分布作成图像，就像上面演示的那样具有极其复杂的结构。
假设屏幕的分辨率为640×480。
-section known as a map Mandebo Lott set Mandebo Lott episode is very simple mathematical model. Assuming that there is a plural Z and , with the following iterative calculation : Z = Z2 + , because the value of different , after several iteration number Z after the amplitude may tend to infinity. May also maintained sector, Mandebo Lott who is set to make Z maintained sector pool put on the complex plane make the distribution of images, as demonstrated above in the extremely complex structure. Assuming screen resolution of 640 480.
Platform: |
Size: 3678 |
Author: 飞机 |
Hits:
Description: 信号时序幅频仿真图-timing signal amplitude and frequency simulation map
Platform: |
Size: 836 |
Author: tin_liu |
Hits:
Description: 读取wav文件，画出其时间－幅值图和做傅立叶变换-read documents paint their time-amplitude map and do Fourier Transform
Platform: |
Size: 170779 |
Author: jiangming |
Hits:
Description: 接法又称周期图法，它是把随机序列x(n)的N个观测数据视为一能量有限的序列，直接计算x(n)的离散傅立叶变换，得X(k)，然后再取其幅值的平方，并除以N，作为序列x(n)真实功率谱的估计。
-Connection also known as cycle map, it is random sequence x (n) N observational data as a sequence of limited energy, direct calculation x (n) the discrete Fourier transform, in X (k), then the lesser of the square of the amplitude and divided by N, as the sequence x (n) real power spectrum estimation.
Platform: |
Size: 9216 |
Author: 梁宏波 |
Hits:
Description: 第一幅图被称作曼德勃罗特集，曼德勃罗特集的数学模型非常简单。假设有复数Z和μ，用下式迭代计算：Z=Z2＋μ，由于μ的取值不同，经过若干次数迭代以后Z的幅值可能趋向无穷，也可能保持有界，曼德勃罗特集就是那些使Z保持有界的μ的集合，把μ在复平面上的分布作成图像，就像上面演示的那样具有极其复杂的结构。
假设屏幕的分辨率为640×480。
-section known as a map Mandebo Lott set Mandebo Lott episode is very simple mathematical model. Assuming that there is a plural Z and , with the following iterative calculation : Z = Z2+ , because the value of different , after several iteration number Z after the amplitude may tend to infinity. May also maintained sector, Mandebo Lott who is set to make Z maintained sector pool put on the complex plane make the distribution of images, as demonstrated above in the extremely complex structure. Assuming screen resolution of 640 480.
Platform: |
Size: 3072 |
Author: 飞机 |
Hits:
Description: 信号时序幅频仿真图-timing signal amplitude and frequency simulation map
Platform: |
Size: 1024 |
Author: tin_liu |
Hits:
Description: DSP课程例程：
① 为频率特性加频域容差图；
② 在对数幅频特性上加要求的指标标识；
③ 量化子程序的调用。-DSP courses routines: ① to increase the frequency characteristics of frequency-domain tolerances map ② in logarithmic amplitude-frequency characteristics of the indicators require additional identification ③ quantify subroutine calls.
Platform: |
Size: 4096 |
Author: 吴倩茜 |
Hits:
Description: 此程序为本人编写的神经网络法设计1型FIR滤波器的程序，读者读此程序后，可以很深刻地理解如何用BP网络和LMS算法来设计滤波器。
只需更改程序中的H值，即可生成各种低通，高通，带通，带阻滤波器。程序运行结果可得到滤波器系数，幅频曲线和衰减曲线。
可通过更改迭代步长和误差极限来调整滤波器特性。-I prepared for this procedure the neural network type 1 FIR filter design procedures, the reader after reading this program, it is a profound understanding of how to use BP network and the LMS algorithm to design filters. Just change the procedures in H values, to generate a variety of low-pass, high pass, band-pass, band stop filter. Program is running the results of available filter coefficients, amplitude-frequency curve and the attenuation curve. Can change the iteration step size and error to adjust the filter characteristics of the limit.
Platform: |
Size: 1024 |
Author: 黄翔东 |
Hits:
Description: 自由空间E和H场的相位差和振幅衰落，可以显示波形。场特性，方向图，增益等-Free-space E and H field phase and amplitude of the decline can display waveforms. Market identity, direction map, gain, etc.
Platform: |
Size: 1024 |
Author: 徐永杰 |
Hits:
Description: 基于matlab实现的双线性变换法设计滤波器，对心电图滤波，得出幅频特性图-Matlab based on the realization of the bilinear transformation method designed filter, for filtering electrocardiogram obtained amplitude-frequency characteristic map
Platform: |
Size: 5120 |
Author: 秦承峰 |
Hits:
Description: 主要描述图像幅度图各级灰度的分布，确定图像的灰度级别-The main description of the image amplitude map the distribution of gray levels to determine the gray level image
Platform: |
Size: 2225152 |
Author: 王好 |
Hits:
Description: QPSK是一种二维调制技术，其中水平轴称为同相轴，垂直轴称为正交轴，分别对应于星座图上的1和Q坐标。同相载波指载波本身，正交载波指相位旋转90度的载波1周。QPSK调制在实现时是采用正交调幅的方式，某星座点在1坐标上的投影去调制同相载波的幅度，在Q坐标上的投影去调制正交载波的幅度，然后将两个调幅信号相加就是所需的调相信号-QPSK is one kind of two-dimensional modulating technology, the horizontal axis is called the alignment, the vertical axis is called the normal axis, corresponds separately in the star map 1 and the Q coordinate. The synchronism carrier refers to the carrier itself, the orthogonal carrier refers to the phase rotation 90 degree carrier 1 week. QPSK modulation when realization is uses the orthogonal amplitude modulation the way, some constellation in 1 coordinate s projection demodulate synchronism carrier s scope, in the Q coordinate s projection demodulate orthogonal carrier s scope, then two amplititude-modulated signal adding together is the phase-modulated wave which needs
Platform: |
Size: 1024 |
Author: john |
Hits:
Description: 一个FIR滤波器设计的例子，有幅频相频响应的图，非常清晰，代码页很规范，阅读起来也很简单。-An FIR filter design examples are amplitude-frequency phase-frequency response of the map, very clear, very standard code page to read up and also very simple.
Platform: |
Size: 5120 |
Author: bestjilei |
Hits:
Description: 用MATLAB实现频域平滑滤波以及图像去噪代码6. 计算频率域图像的幅值并进行对数变换，利用’imshow’ 显示频率域图
像；
7. 在频率图像上去除滤波半径以外的数据(置0)；
8. 计算频率域图像的幅值并进行对数变换，利用’imshow’ 显示处理过的
频域图像数据；
-6. Calculate the frequency domain image of the amplitude and logarithmic transformation, using imshow show the frequency domain map
Like
7. Removal of the image filtering in frequency than the radius of data (set 0)
8. Calculate the frequency domain image of the amplitude and logarithmic transformation, using imshow show-treated
Frequency domain image data
Platform: |
Size: 4096 |
Author: 梁玉梅 |
Hits:
Description: 利用matlab来模拟正弦振幅型光栅，并附有图说明模拟效果-Using matlab to simulate sinusoidal amplitude grating, together with the map shows simulation results
Platform: |
Size: 22528 |
Author: 张立 |
Hits:
Description: 用matlab语言，实现双边带抑制载波调幅（DSB-SC）信号，并绘制出图-Matlab language used to achieve double sideband suppressed carrier amplitude modulation (DSB-SC) signal, and draw a map
Platform: |
Size: 6144 |
Author: 君 |
Hits:
Description: 采用4阶龙格库塔法和10阶连分式欧拉法，数值计算、分析了分数阶阻尼Duffing系统的
动力学特性．利用相图、Poincare截面映射图和分岔图等非线性动力学分析方法研究了阻尼的分数
阶微积分阶数对Duffing系统动力学性能的影响，采用分岔图法研究了外部激励的幅值和频率变
化时分数阶阻尼Duffing系统的动力学行为．分析表明，分数阶阻尼的阶数在0．1～2．0发生变化
时，系统依次进入周期运动、混沌运动、周期运动、混沌运动和周期运动，并且在混沌运动区间中存
在着周期运动窗口，由周期运动进入混沌运动的倍周期过程比较明显，结果证实了阻尼的分数阶微
分阶数对系统的动力学特性影响比较大，因此在系统动力学设计和分析中应该重视．-Abstract：Nonlinear dynamics of Duffing system with fractional order damping is investigated。
The equations of fractional order damped Duffing system are established．The four-order Runge-
Kutta method and ten-order CFE-Euler methods are performed tO solve the fractional order Duffing
equations．The effects of fractional order on the system dynamics are proposed with phase di—
agrams，bifurcation diagrams and Poincare map．The bifurcation diagram is utilized tO analyze the
effect of excitation amplitude and frequency on Duffing system with fractional order damping．
The analysis shows that the fractional order damped Duffing system exhibits period motion。cha—
OS，period motion，chaos，period motion one by one when the fractional order change from 0．1 to
2．0．A period doubling route to chaos is appeared clearly．The numerical results verify the signif—
icant effect of fractional order on system dynamics．It iS necessary to consider the fractional order
of damping in the design and analysi
Platform: |
Size: 397312 |
Author: 张洋 |
Hits:
Description: Chaotifying a stable map via smooth small-amplitude high-frequency feedback control
Platform: |
Size: 78848 |
Author: haha |
Hits:
Description: 最优波束形成算法（标准矩形阵列的波束方向图的幅度、切面极坐标、切面图、幅度等高线图等）-Optimal beamforming algorithm (standard rectangular array beam pattern amplitude, the section in polar coordinates, the section map, magnitude contour map, etc.)
Platform: |
Size: 3072 |
Author: 阿莲 |
Hits: