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Modeling-and-LINGO
- 全国数学建模大赛用到的高频模型:优化建模与LINGO简介-National Mathematical Modeling Contest used in high-frequency model: Introduction to Optimization Modeling and LINGO
Fremeasure
- 基于凌阳61单片机的频率计设计,经实验在高频部分有非常高的准确率。-Sunplus 61 MCU-based design frequency meter, high frequency part of the experiment at a very high accuracy rate.
TtunnerrV
- 电视高频头的程序源码,I2C控制,能搜有有线电视台,直接输出CVBS 可直接使用。-TV Tuner procedure source, I2C control, can be found cable televisionn, direct output CVBS source code integrity, and can be used directly.
tuner
- 89c51控制I2C电视高频头今天成功制作了用89c51控制I2C电视高频头LCD显示。先做好51的最简单系统,然后P3口LCD,P2.0,P2.1,P2.2分别接LCD的R/S,R/W,E。P0.0,p0.1分别接高频头的SCL,SDA。-89c51 TV Tuner I2C control a successful production today with I2C control 89c51 TV tuner LCD display. 51 to do the most simple sy
TUNER_READaWRITE_PRODUCE
- 调协器读写程序,在电视中用于读写电视高频头的控制程序。-ordination procedures for reading and writing, reading and writing for television TV tuner control procedures.
xtg
- 产生信号,并显示信号的幅频特性曲线 xt=xtg产生一个长度为N,有加性高频噪声的单频调幅信号。能画出仿真图形-Generate signals and displays signal amplitude-frequency characteristic curve xt = xtg produce a length N, a single frequency amplitude of the high frequency signal plus noise. Can
dddd
- 这是基于单片机自动量程的频率计的PPT,里面包含了方案的总体硬件框图,以及5V稳压电源电路的设计,以及以高频为10kHz、低频为800Hz的正弦波频率和方波频率两种频率信号进行比较-This is a microcontroller based automatic frequency range meter PPT, which contains a hardware block diagram of the overall program, as well as 5V power supply
ss
- 随着计算机网络的迅速发展,发生了翻天覆地的变化,数字信息的保护已是一个刻不容缓的问题,由于数字内容很容易复制,修改,网络上的数字内容分发的,有很多的盗版,侵权行为,知识产权保护,以抵抗各种侵权行为,近年来一直是世界上一种新的信息安全技术的提出,数字水印技术,它是一种新的数字信息技术为数字文件的特定著作权利益的保护。现在流行的水印算法在国内外主要是基于空间域和变换域,从综合性能比较,变换域的方法更为优越,目前占主要地位,未来的趋势为变换域方法为主流。本文提出了一种离散余弦变换(DCT)基于变换域的
2
- 利用余弦变换实现图像压缩: DCT先将整体图像分成N×N像素块(一般N=8 ,即64个像素块), 再对N×N块像素逐一进行DCT变换。由于大多数图像高频分量较小, 相应于图像高频成分的失真不太敏感,可以用更粗的量化,在保证所要求的图质下, 舍弃某些次要信息。-Cosine transform image compression: DCT NN first image is divided into blocks of pixels as a whole (usually N =
3
- 利用小波变换实现图像压缩: 利用小波变换实现图像压缩,是利用小波分解图像的高频部分,只保留低频部分, 从图中可以看出,第一次压缩是提取图像中小波分解的第一层低频信息,此时压缩效果较好,第二次压缩是提取第二层的低频部分,其压缩效果远不如第一次压 -Using wavelet transform image compression: wavelet transform for image compression, is the use of high-frequency part
ecgprocess
- Q波和S波通常是低幅高频波,一般Q波位于S波之前,S波位于R波之后 ,由于他们是一般向下的波,所以他们的峰值点和极值是对应的。因次在检测到R波向左和向右分别搜寻到极值点,对应的就是Q波和S波。而现在我们只需要检测到R波,所以就不需要检测Q波与S波的极值点了。-Q-wave and S-wave amplitude high-frequency waves are usually low, generally located before the Q-wave S-wave, S-wave is
bplbq
- 带通滤波器.滤除一定频率内的噪声信号,低频和高频特性不变。-Bandpass filter. Filtered noise signal, the low and high frequency characteristics within certain frequency constant.
2028
- XC2028的硅高频头驱动代码,以32位的格式书写,适用于32位主控的MCU或者ARM-MCU XC2028 silicon tuner driver code, written in 32-bit format, suitable for 32 master' s or ARM
SampleCode
- 硅高频头SI2136的驱动代码,32位格式写成,可改为8位适用单片机主控-Silicon tuner SI2136 driver code, written in 32-bit format, can be changed to 8 apply microcontroller master
cegaopinpinlv
- 用AVR单片机测量高频频率,可以测到64M的高频频率-AVR single-chip high-frequency measurement with the frequency of which can find high-frequency frequency 64M
fq1286_cn
- PHILIPS FQ1286高频头c51驱动程序,包含i2c通信-PHILIPS FQ1286 tuner C51 driver i2c communication contains
HF-XTAL
- msp430x22x4系列高频晶振HF XTAL的设置相关-msp430x22x4 series of high-frequency crystal oscillator HF XTAL settings related
How-to-comprehend-matching-impedance
- 对于高频的电路设计,就必须要考虑阻抗匹配的问题,否则信号的质量和传输距离就会受到严重影响,本文介绍了如何理解阻抗匹配的问题,是难得得资料。-For high-frequency circuit design, it is necessary to consider the problem of impedance matching, or the quality of the signal and the transmission distance can be severely affecte
wave-denoise
- 程序利用小波分解将声音信号分解为高频与低频部分,而后利用软阈值方法确定高频与低频各自的小波重构系数,将高频与低频部分重构还原信号达到降噪的目的。-Program using wavelet decomposition sound signal into high and low parts, then use soft threshold method to determine the high and low frequency coefficients of each wavelet rec
Gyroklystron
- 回旋速调管放大器的自洽非线性计算程序,用于计算回旋速调管高频系统电子注-波互作用-a self-consistance unlinear calculating code of Gyroklaystron,calculating beam-wave interaction of high frequency system of Gyroklystron