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1下载:
中频信号正交化处理过程中,低通滤波法,多相滤波法和Bessel插值法镜频抑制的比较,-IF signal quadrature-based processing, low-pass filtering method, multi-phase filtering method and the Bessel interpolation method mirror-frequency rejection of the comparison,
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本文实现了利用B样条函数对图象插值放大的快速算法,并在此基础上,进一步提出了彩色图象放大的方案,既先将图象从RGB空间转换到YUV空间,对UV分量插值放大后进行低通滤波处理,最后再将图象转换至RGB空间。实验结果显示了该方法插值效果好并且处理时间短。-In this paper, the realization of the use of B-spline function of image interpolation to enlarge the fast algorithm, and on
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Cubic spline interpolation and low pass filter
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对基带数字通信的位同步过程进行了仿真,采用Gardner算法,没有用插值。符号用SRRC进行脉冲成形,环路滤波器没有用PI回路,是简单的alfa,1-alfa低通滤波,NCO调整也比较简单。-Baseband digital communications for the bit synchronization process of the simulation, using Gardner algorithm, did not use interpolation. Carried out wit
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方法引入低通掩膜算子在空域对降采样前的图像做滤波预处理,抑制欠采样噪声.系统...频谱混叠.实验证明,此算法基本能达到预滤波插值算法的处理效果.-Method of introduction of a low-pass mask operator in the airspace of the down-sampling the image before filtering to do pre-processing, noise suppression due to sampling. The s
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利用低通滤波器对图像进行插值放大:按放大的倍数对原图像进行插零,插零后的图片与低通滤波函数进行卷积,原先插入的零的位置自动替换为适当的插值,如此图像就已经插值放大了,图像质量还不错。-Double the number of pixels of each row and column by adding a zero value pixel between each pixel of the image.Then operate with two kinds of low-pass filter
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图像的双线性插值放大算法中,目标图像中新创造的象素值,是由源图像位
置在它附近的2*2 区域4 个邻近象素的值通过加权平均计算得出的。 双线性内插
值算法放大后的图像质量较高,不会出现像素值不连续的的情况。然而次算法具
有低通滤波器的性质,使高频分量受损,所以可能会使图像轮廓在一定程度上变
得模糊。 -Bilinear interpolation algorithm to enlarge the image, the target image in the newly creat
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代码用两种方法设计了一个基于多相滤波的内插器,低通滤波器采用128阶凯撒窗,内插倍数32,并且给定信号范围,验证了内插器的正确性,画出了内插前后信号的频谱。-The code design the interpolator based on polyphase filter using two methods.The low pass filter is 128 order Caesar window and interpolation multiple is 32.I give the ran
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应用时域内插公式模拟用理想低通滤波器由离散序列恢复模拟信号的编程-Application time domain interpolation formula simulation with ideal low-pass filter by discrete sequence recovery analog signal programming
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实现内插数字上变频 内插 低通滤波器的子程序 整个系统的调试-Upconverting interpolation interpolated digital low-pass filter of the subroutine of the entire system debugging
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基于VS2008编写,程序很简单,算法很经典实用。提出一种基于三次拉格朗日插值的自适应图像缩放算法 该算法首先计算目标像素点周围三组源像素点的方差,选取方差最小的一组源像素点,然后采用三次拉格日插值公式求得目标像素点的灰度值实验结果表明,本文算法所得的目标图像边缘清晰,且算法复杂度较低,便于硬件实现,可以实现实时图像缩放。-Based on VS2008, the program has a very simple algorithm is very classic and practical.
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各种滤波器的设计,包括高斯低通滤波器。hilberrt带通滤波器,插值滤波器等等。-Various filter design, including Gaussian low-pass filter. hilberrt band-pass filter, the interpolation filter and so on.
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采用多级级联方法降低了对硬件运算速度的要求,有利于实时处理;采用余弦滤波器改善了阻带衰减不足;内插二阶多项式滤波器补偿了 CIC 滤波器通带内的衰减;抗混叠低通滤波器减小了混叠影响-Using multi-stage cascade approach reduces hardware requirements for computing speed, real-time processing in favor cosine filter improves the stop-band atten
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Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and i
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实现完整的通信系统的发送和接收,包括64QAM调制和解调 8倍插值 低通滤波等-Achieve a complete transmit and receive communications system, including 64QAM modulation and demodulation 8 × interpolation low-pass filtering
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有源码,适合学习C++的人
一、 读入一幅灰度图象,编写程序显示图象中任一象素点的灰度值。
二、 编程实现RGB彩色空间到HSV彩色空间的转换,并通过调整H、S、V的值实现图像亮度、色度和色饱和度的调节。
三、 1.灰度线性变换、分段线性变换
2.灰度直方图均衡、规格化
3.图象卷积:各种模板实现低通、高通滤波
4.图象中值滤波、最大值滤波、最小值滤波、模板选择滤波
5.伪彩色图象增强
四、 1.图象的加、减、乘、除和逻辑运算。
2.图象的镜像变换、图象的缩放
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首先,生成一个多音正弦,然后进行补零的插值,然后把补零插值的信号塞到一个低通滤波器里面,这样就有三个版本的信号,原始信号,补零插值信号,以及插值滤波之后的信号。(First, generate a polyphonic sine, and then make zero interpolation, and then fill the zero interpolation signal into a low-pass filter inside, so there are three versio
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利用椭圆低通滤波器对信号进行滤波,并利用加汉宁窗的插值方法对信号进行了频谱分析(To filter the signal by using the elliptic low pass filter, and the signal spectrum analysis using interpolation method and Hanning window)
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对MIT心电信号处理,线性插值,低通滤波,高通滤波,带阻滤波。
使用方法为在命令窗口输入R('XX.txt'),XX为你在MIT下载的txt数据。(MIT ECG signal processing, linear interpolation, low pass filter, high pass filter, band stop filter.
The use of the method is to enter R ('XX.txt') at the command window, an
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