[波变换] dimensionalspectral
小波变换是一种线性运算 , 它对信号进行不同尺度的分解 , 可有效地应用于如
信噪分离 , 提高时频两域的分辩率等 。本文讨论小波变换用于心电 Q RS 波形中细微特征
( 即高频成份特征 ) 提取的方法.
Wavelet transform is a linear operation, its signal is decomposed at different scales, can be effectively used as the signal to noise separation, the two time-frequency domain, such as to improve the resolution. This article discusses the wavelet transform of ECG waveform Q RS subtle features (ie, features high-frequency components) extraction method. (2015-02-28, VHDL, 145KB, 下载4次)
[波变换] DDS
利用EDA技术和FPGA在UP3开发板上实现直接数字频率综合器的设计。
实验中加入了相位控制字PWORD，用以控制相位偏移量的前四位，将相位偏移量加到ROM地址总线 上，从而引起从ROM中取得的正弦信号的偏移，实现移相信号发生器的移相功能。
实验中还加入了LCD显示功能，通过LCD显示模块器件，用LCD显示正弦信号的频率，所显示的频 率也是由频率字控制的。LCD的驱动原理同上次实验。
The use of EDA technology and FPGA development in the UP3 board direct digital frequency synthesizer design. Experiment by adding a phase control word PWORD, to control the phase offset of the top four will be added to the phase offset ROM address bus, thereby causing ROM obtained from the sinusoidal signal offset, shifted believe realize its phase-shifting function generator. Experiments have also joined the LCD display, LCD display module through the device, with LCD display the frequency of sinusoidal signal, as shown by the frequency of word frequency control. LCD driving principles with the previous experiment. (2008-08-05, VHDL, 1197KB, 下载48次)
[波变换] singt
实现了方波、正弦波、三角波的输出，同时在LCD模块中用状态机的方法实现LCD的对应显示：当输出正弦波，LCD显示“SIN”；当输出方波，LCD显示“REC”；当输出三角波，显示“TRI”；复位和其它位置波形显示“UNI”。
Realize a square wave, sine wave, triangle wave output, while in the LCD module using the state machine approach to achieve the corresponding LCD display: When the output sine wave, LCD display (2008-08-05, VHDL, 1038KB, 下载93次)
[波变换] compressVLSI
高速图像压缩编码器的VLSI结构设计研究.kdh 相当有水平的博士论文。里面详细讲到了如何设计小波变换VLSI结构。并对verilog hdl设计结构进行了评估
High-speed image compression encoder the structural design of VLSI Research. Kdh quite the level of doctoral dissertation. Which describes in detail how to design the structure of wavelet transform VLSI. Verilog hdl design and structure of the assessment (2008-06-22, VHDL, 1693KB, 下载135次)