Description: 针对多聚焦图像融合，本文首先介绍了小波变换融合算法，虽然小波变换方法无冗余，高频分量损失较小，具有较好的融合效果，但存在两个主要缺点：一是移变性，二是融合图像在重构时会受到一些外来因素的影响，所以仍会丢失一些边缘信息，为了克服小波变换法的以上缺点，可以采用基于小波分解和点扩展函数模型PSF相结合的融合方法。该方法首先对不同的图像进行无降2采样的小波分解，以保持与源图像大小相同，然后分别将其各方向、各尺度的高频分量进行叠加，并依此提取其高频分量的特征信息来判定清晰目标或模糊目标，以此来设计融合算法，采用一定的策略将两副源图像进行融合，从而避开了小波的反变换，因此融合后的图像具有比小波变换法更好的融合效果。-multi-focus image fusion, this paper introduces the wavelet transform algorithm, Although the wavelet transform non-redundant, the loss of high-frequency components are smaller, better integration effect, But there are two major drawbacks : First, the shift variability and the second is the integration of image reconstruction will be subject to a number of external factors. Therefore, there would still be some marginal loss of information, in order to overcome the wavelet transform of the above shortcomings, can be used based on wavelet decomposition and the point spread function PSF model combining the fusion method. The first pair of different images ratchet two sampling wavelet decomposition, and to maintain the same source image size. Then all of its direction, the scale of high-freque Platform: |
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Author:廖鑫鹏 |
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Description: 连续信号的采样与重构，主要说明信号采样与重构程序-continuous signal sampling and Reconstruction, the main note signal sampling procedures and Reconstruction Platform: |
Size: 2048 |
Author:徐恒梅 |
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Description: 信号的采样与重建 与信号系统相关的，希望对大家有点用处-Signal sampling and reconstruction associated with the signal system, in the hope that we are a bit useless Platform: |
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Author:梦罗 |
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Description: 压缩传感理论的一个简单例子，首先对信号进行稀疏采样，然后利用MP算法对信号进行重建。-Compressed sensing theory of a simple example, first of all, the signal sparse sampling, and then use MP algorithm of signal reconstruction. Platform: |
Size: 1024 |
Author:汪博峰 |
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Description: DSB-SC信号的生成与解调
1) 用离散（DSP）的方法生成DSB信号
2) 载波频率为150KHz，音频为500Hz和2000Hz的混合音。
3) 加入高斯白噪声
（4） 语音信号
的传输。
改变抽样频率和量化台阶大小，观察重建信号以及量化噪声信号的波形；对于语音信号主观评价声音质量的变化。
-DSB-SC signal generation and demodulation 1) Discrete (DSP) methods to generate DSB signal 2) the carrier frequency to 150KHz, audio 500Hz and 2000Hz for the mixed tone. 3) by adding white Gaussian noise (4) transmission of voice signals. Change the sampling frequency and quantization step size, to observe the reconstruction of signal and quantization noise signal waveform for subjective evaluation of the speech signal changes in sound quality. Platform: |
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Author:Ryan |
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Description: 运用Matlab语言编程，进行信号分析的能力。音频信号是一种连续变化的模拟信号，计算机只能处理和记录二进制的数字信号，由自然音源而得的音频信号必须经过采样，量化和编码，变成二进制数据后才能送到计算机进行再编辑和存贮，通过本实验中了解模拟信号采样和重构的完整过程，加深对采样定理的理解。-Matlab programming language to use for signal analysis. Audio signal is a continuous change of the analog signal, the computer can only handle and record the binary digital signal, derived from natural sources of the audio signal to be sampled, quantification and encoding binary data into a computer in order to re- editing and storage, through this experiment to understand the analog signal sampling and reconstruction of the full process, to deepen understanding of the sampling theorem. Platform: |
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Author:tong |
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Description: 应用MATLAB实现连续信号的采样与重构仿真-Application of MATLAB to achieve continuous signal sampling and reconstruction of simulation Platform: |
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Author:cao |
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Description: 应用MATLAB实现连续信号的采样与重构仿真-Application of MATLAB to achieve continuous signal sampling and reconstruction of simulation Platform: |
Size: 73728 |
Author:王鹏 |
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Description: 使用matlab的小波分解和重建函数对24位的ADC采样数据进行小波变换和去噪，去噪使用阈值算法，阈值的选取具体使用了6种方法进行对比，对于不同信号其效果是不同的！把去噪后的信号和原始信号放在一个图中，使用不同颜色的曲线进行对比，效果可以很直观的表现。-Using matlab wavelet decomposition and reconstruction of the function for 24-bit ADC sampling data wavelet transform and denoising, denoising using the threshold algorithm, the threshold selecting specific methods used six kinds of contrast, the effect for different signals is different The! After the denoising signal and the original signal on a map using different colors to compare curves, the effect can be very intuitive performance. Platform: |
Size: 69632 |
Author:刘玉才 |
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Description: 初步学习采样和重建信号。包括源程序和报告书。-Preliminary study of sampling and reconstruction of the signal. Including the source and report. Platform: |
Size: 57344 |
Author:fashenqq |
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Description: 数字信号处理中对模拟信号的采样频谱分析，及时域、频域重构分析，包括信号及频谱，采样信号及其频谱，时域重构，通过低通滤波器进行频谱重构等代码-Digital signal processing of the analog signal sampling spectral analysis, time-domain, frequency-domain reconstruction analysis, including signal and spectrum, the sampling signal and its spectrum, time-domain reconstruction, through the low-pass filter spectrum such as code refactoring Platform: |
Size: 2048 |
Author:liuzhaotian |
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Description: 信号的采样与重建，对已知连续信号进行采样，然后通过离散信号恢复原始信号。-Signal sampling and reconstruction of continuous signals to known samples, and then restore the original signal through the discrete signal. Platform: |
Size: 1024 |
Author:lipinglin |
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Description: MATLAB中GUI的设计实例，其中包括语音信号的录制、采样、滤波、重构、以及计算语音信号的频谱特性。-MATLAB GUI design example, including voice signal sampling, filtering, recording, and calculate the reconstruction, the speech signal spectrum characteristics. Platform: |
Size: 2893824 |
Author:张路 |
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Description: 关于压缩感知重构算法， 压缩感知（Compressive Sensing, or Compressed Sampling，简称CS），是近几年流行起来的一个介于数学和信息科学的新方向，由Candes、Terres Tao等人提出，挑战传统的采样编码技术，即Nyquist采样定理。-Reconstruction algorithm on compressed sensing, compressive sensing (Compressive Sensing, or Compressed Sampling, referred to as CS), is popular in recent years, a range of mathematics and information science a new direction, by Candes, Terres Tao et al, challenge the traditional sample coding, that Nyquist sampling theorem. Platform: |
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Author:zhongyi |
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Description: 基于MATLAB的信号采样与重构的实现,该文档是基于理论算法的研究，同时给出了较为详细的说明。-Realization of signal sampling and reconstruction based on MATLAB Platform: |
Size: 125952 |
Author:BAOYANBO |
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Description: 压缩感知，又称压缩采样，压缩传感。它作为一个新的采样理论，它通过开发信号的稀疏特性，在远小于Nyquist 采样率的条件下，用随机采样获取信号的离散样本，然后通过非线性重建算法完美的重建信号。-Compressed sensing, also known as compressed sampling, compressed sensing. It as a new sampling theory, it is through the development signal sparse characteristics under conditions of far less than the Nyquist sampling rate, with a random sampling obtain discrete samples of the signal, and then through a perfect reconstruction of the signal of the non-linear reconstruction algorithm. Platform: |
Size: 52224 |
Author:胡古月 |
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Description: 基于matlab开发环境下的，采样与重构。这里着重研究过界情况下的采样。-Based on the sampling and reconstruction matlab development environment. Here we focus on the case of oversampling community. Platform: |
Size: 1024 |
Author:枫倾轩 |
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Search - sampling reconstruction matlab