Verilog数控分频器的设计

小波包分解，重构轴承振动信号，Hilbert包络，FFT进行频谱分析，以获得轴承故障频率。(Wavelet packet decomposition, reconstruction of bearing vibration signal, Hilbert envelope, FFT spectrum analysis to obtain the bearing fault frequencies.)

可以给VHDL初学者看的实例，全部经过验证(VHDL beginners can see examples of all the proven)

基于查找表的DDS的Verilog实现，分为相位累加器模块、ROM模块和顶层DDS模块(Verilog implementation of DDS based on lookup table)

此压缩包里面有基于vivado平台的工程，包括了正弦信号的产生，还有fir滤波器的设计以及fft算法的设计实现(in this package,there are three projects of the generation of the signal of sin and the design of fir filter and the ari)

基于verilog的H.264视频压缩技术的源代码，包括verilog源代码，以及仿真波形文件，希望对大家有用-verilog h.264,

xilinx 平台的SPI从接口实现源码，供参考学习(used xilinx,slave-spi interface.)

这里是verilog代码 ；8bit  ；吠陀乘数还可以使用这个模块的设计…你想要更大的…

说明：  URISC的RTL级设计，Verilog代码(Design: URISC RTL Verilog)

1）选择一个语音信号作为分析对象，或录制一段语音信号； 2）对语音信号进行采样，画出采样前后语音信号的时域波形和频谱图； 3）利用MATLAB中的随机函数产生噪声加入到语音信号中，使语音信号被污染，然后进行频谱分析； 4）设计用于处理该语音信号的数字滤波器，给出滤波器的性能指标，画出滤波器的频率响应； 5）对被噪声污染的语音信号进行滤波，画出滤波前后信号的时域波形和频谱，并对滤波前后的信号进行比较和分析； 6）回放各步骤的语音信号，给出相应处理程序及运行结果分析。(1) Select a voice signal as an analysis object, or record a voice signal 2) sampling the voice signal, draw the waveform and frequency spectrum of the time domain before and after sampling the speech signal 3) using the random function in MATLAB generated noise was added to the speech signal, the speech signal to be contaminated, and then spectrum analysis 4) for processing the speech signal, the digital filter design, given the performance of the filter to draw the filter' s frequency response 5) on the noise pollution of the speech signal is filtered, time-domain waveform and spectrum draw before and after filtering the signal before and after filtering, and the signal for comparison and analysis 6) playback of the speech signal for each step, given the results of the corresponding processing procedures and run analysis.)

基于CPLD的交通灯控制，完成交通灯的功能，校错能力(CPLD-based control of traffic lights, traffic lights to complete the function, the school was wrong capacity)