Search - aliasing

Search - aliasing - List

[Other] DSPHOMEWORK DL : 0: 设信号，用对x(t)采样得x(n)，是否会发生频谱混叠？现利用FFT分析其频谱。 1．编程绘制该信号的波形。 2．若令N=16，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 3．令N=1024，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 4．分析2、3的运算结果。设计调试报告要求： 1．工作原理简述； 2．设计思路； 3．难点及解决方法； 4．设计、调试结果及分析； 5．程序文本及操作步骤。-based signal used to x (t) in the sample x (n), whether there will be a spectrum aliasing? FFT analysis is the use of their spectrum. 1. Programming mapping of the signal waveform. 2. If so N = 16, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 3. Order N = 1024, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 4. Analysis of two, three computational results. Design debugging reporting requirements : 1. Principle outlined; 2. Design; 3. Difficulties and solutions; 4. Design, debugging and analysis of results; 5. Text and operating procedures steps.
Date : 2025-12-25 Size : 48kb User : 魏臻
[Other] IIR DL : 0: 用双线性变换法设计IIR数字滤波器滤波就是将外界干扰的不需要的频率滤除掉，一面影响要测试数据的结果。比如如果是心电波的话，如果这是外界有很大的噪声干扰，滤波就是把不必要的信号给抑制掉，以便对心跳的正常测试。通过图比较，滤波后的明显比之前的要平滑，就是滤去干扰噪声的结果。采样间隔对实验有影响，取的过大会导致频率混叠。-Bilinear transformation method using digital filter IIR filter design is to outside interference filter out unwanted frequencies, while the impact to test data results. For example, if it is so heart waves, if this is a great noise outside interference, filtering is unnecessary signal out to the curb in order to test the normal heartbeat. Through chart comparison, after filtering than before to smooth the noise interference is the result of least squares. Sampling interval of the experiment affect take-off frequency of the General Assembly leading to aliasing.
Date : 2025-12-25 Size : 1kb User : 果法
[Other] dipAliasing DL : 0: digital image processing aliasing -digital image processing aliasing
Date : 2025-12-25 Size : 1kb User : Neo
[Other] caiyang DL : 1: 一个带通信号的中心频率为15MHz，带宽为750Hz（载波每侧各375Hz）。（1）利用带通采样定理，确定能够无误差地恢复被采样带通信号的最小采样频率；（2）如果使用（1）中的采样频率，试画出采样信号的频谱；（3）从（1）中的采样频率开始，考虑增加采样频率的影响，试问增加多少采样频率可以没有混叠误差？ -The center of a bandpass frequency of 15MHz, the bandwidth is 750Hz (carrier on each side of the 375Hz). (1) the use of bandpass sampling theorem, identifying non-sampling error to restore the minimum bandpass sampling frequency (2) If (1) the sampling frequency, sampling frequency spectrum Draw (3) from (1) the sampling frequency start, consider increasing the frequency of sampling, how to increase the number of sampling frequency can be no aliasing error?
Date : 2025-12-25 Size : 11kb User : sophy
[Other] shiyanliu DL : 0: 这个代码用于实现走样与反走样处理，利用OpenGL和VC6.0进行反走样方法的实验-This code is used to experiment aliasing and anti-aliasing
Date : 2025-12-25 Size : 2.39mb User : 郭凡
[Other] Frequency-aliasing-and-sampling-test DL : 0: 频率混叠和抽样试验用于说明频率混叠与抽样之间的关系-Frequency aliasing and sampling test
Date : 2025-12-25 Size : 197kb User : 孙权
[Other] fanzouyang DL : 0: 在图形的绘制中，直线的走样是非常影响美观的，我们可以使用反走样解决这个问题。在众多的解决方案里，多重采样是一种易于硬件实现的方法，也是一种快速的方法。 -Graphics rendering straight aliasing affect the appearance, we can anti aliasing to solve this problem. In many solutions, multiplet sampling is a hardware implementation, but also a quick method.
Date : 2025-12-25 Size : 1.2mb User : 江涛
[Other] FreeType DL : 0: 使用FreeType库可以创建非常好看的反走样的字体，记住暴雪公司就是使用这个库的，就是那个做魔兽世界的。尝试一下吧，我只告诉你了基本的使用方式，你可以走的更远。 -Use the the the FreeType library can create a very good-looking, anti-aliasing font, remember that Blizzard is using this library is that World of Warcraft. Try it, I just tell you the basic use, you can go further.
Date : 2025-12-25 Size : 685kb User : 江涛
[Other] 2013.4.1 DL : 0: 单载频雷达信号在欠采样条件下产生频谱混叠，用MATLAB仿真验证的结果-Subsampling conditions of single carrier frequency radar signal spectrum aliasing, using MATLAB simulation results
Date : 2025-12-25 Size : 531kb User : guang
[Other] fenxi DL : 0: 数字信号处理中的离散信号DFT后会出现栅栏现象、混叠现象和截断效应，本文档为离散信号谱分析的的matlab仿真-Matlab digital signal processing discrete signal DFT phenomenon occurs after the fence, aliasing and truncation effect, this document is a discrete signal spectrum analysis of the simulation
Date : 2025-12-25 Size : 1kb User : wzt
[Other] wavelet_ DL : 0: 利用小波变换对信号进行处理，避免了频谱混叠现象-Using wavelet transform to signal processing, avoids the spectrum aliasing phenomenon
Date : 2025-12-25 Size : 1kb User : 常悦
[Other] wanbeijingyanmotaifenjie DL : 0: 完备经验模态分解，是EEMD的改进算法，有效的减小了模态混叠现象。-Complete empirical mode decomposition is EEMD improved algorithm effectively reduces the modal aliasing. .
Date : 2025-12-25 Size : 3.02mb User : 李宏宇
[Other] wasobi DL : 1: 二阶盲源分离算法，可以分离出在非欠定的情况下的混叠信号-Second-order blind source separation algorithm can be isolated in a non underdetermined situation aliasing
Date : 2025-12-25 Size : 4kb User : yangzhen
[Other] 20151024_124310377 DL : 0: 易语言OpenGL教程第48课轨迹球源码例程程序结合易语言OpenGL支持库,调用API函数实现轨迹球效果。点评：易语言OpenGL教程总共48课，现缺少22课凹凸映射，35课播放AVI，38课资源文件，45课顶点缓存，46课全屏反走样，47课CG顶点脚本等。后期有可能会补上，敬请期待。 -Easy language OpenGL tutorial forty-eighth lesson track ball source routine procedures combined with easy language OpenGL support library, call the API function to achieve the track ball effect. 点评：易语言OpenGL教程总共48课，现缺少22课凹凸映射，35课播放AVI，38课资源文件，45课顶点缓存，46课全屏反走样，47课CG顶点脚本等。后期有可能会补上，敬请期待。 Comments: easy language OpenGL tutorials a total of 48 classes, lack of lesson 22 bump mapping, play avi lesson 35, 38 class resource file, 45 class vertex buffer, 46 class full scene anti aliasing lesson 47 Cg Vertex scripts. Late may be up, please look forward to. 双语对照
Date : 2025-12-25 Size : 159kb User : songziyu
[Other] audio_sampling DL : 0: Program for demonstrating audio sampling and aliasing
Date : 2025-12-25 Size : 1.52mb User : jun_uob
[Other] important article2 DL : 0: In the proposed algorithm, the range-independent de-rotation operation is employed to overcome the spectrum aliasing problem, and the signal properties after de-rotation are derived in detail. Moreover, a modified range-dependent deramp function is proposed to accommodate the time shift, and the chirp-z transform is utilized for correcting geometry distortions caused by the range-dependent deramp operation. Furthermore, range scaling and azimuth scaling are performed, providing the same pixel sampling interval for all sub-swath images in both range and azimuth dimensions respectively, which avoids interpolation for the sub-swath image
Date : 2025-12-25 Size : 2.34mb User : khosravi
[Other] QualityResolution Settings Menu 0.4 DL : 0: 目录设置,分辨率抗锯齿,设置动态模糊，设置垂直同步等(Directory setting, resolution anti aliasing, setting dynamic blur, setting vertical synchronization, etc.)
Date : 2025-12-25 Size : 6.62mb User : YY770
[Other] glsl-fxaa-master DL : 0: 一种抗锯齿算法，内附demo 。fxaa 3 源代码(An anti aliasing algorithm with demo. Fxaa 3 source code)
Date : 2025-12-25 Size : 528kb User : eper
[Other] VMD DL : 0: vmd，MATLAB程序，针对EMD分解引起的模态混叠问题，能够得到较纯净的IMF分量(VMD, MATLAB program, for the modal aliasing problems caused by EMD decomposition, can get relatively pure IMF components)
Date : 2025-12-25 Size : 4kb User : 美丽小妞
[Other] memd DL : 0: emd改进算法，克服了emd算法的模态混叠，屏蔽经验模态分解算法。(The Improved EMD algorithm overcomes the modal aliasing of EMD algorithm and shields the empirical mode decomposition algorithm.)
Date : 2025-12-25 Size : 1kb User : 明明如月0

« 12 »