文件中包含BFSK、DPSK、BPSK、QPSK等等数字调制程序。(File contains the BFSK, DPSK, BPSK, QPSK, and so on digital modulation process.)

频率计介绍了用VHDL语言编写的频率计的程序，详细编写了如何测频，如何计数频率。-Cymometer introduce VHDL language with the frequency of the procedure in detail how to prepare a frequency measurement, how to count the frequency.

这是分数阶傅里叶变换FRFT的土耳其算法的FPGA实现的程序，FPGA是Xilinx的virtecx-5，这是我在做毕业设计的时候自己编写的，希望能对你有帮助！(This is the fractional Fourier transform algorithm FRFT Turkish FPGA implementation of the program, FPGA is the Xilinx virtecx-5, which is what I was doing graduate design time I have written, I hope you can help!)

FFT程序，此程序虽然耗逻辑资源很大，但是在接受数据后的第7个时钟沿就可以输出FFT变换后的数据，对要求时延较低的系统可以考虑-FFT procedure, this procedure should not consume a lot of logic resources, but the data in the first seven clock can be output along the FFT transformed data, the requirements of time-delay system can be considered lower

说明：  本书从电子技术和通信系统的角度讲解gps接收机的设计开发原理，其内容集中在用户终端，即接收机的设计原理和软件实现上。全书分为两大部分，第一部分为理论篇，第二部分为实现篇。理论篇首先对导航的基本目的进行了阐述，并由一个浅显的二维导航系统对导航信号的特点进行了推导，随后阐述了gps信号格式，同时对于直接影响接收机性能的射频前端部分做了理论分析；实现篇主要对本书实现的软件gps接收机的系统实现和源代码进行了讲解，同时作为总结，将信号处理的结果和有意义的中间变量以图示的方式给出，可以使读者有一个感性的认识，同时提升学习兴趣。. 本书适合从事卫星导航接收机研发的技术人员和卫星通信接收机研究的研究人员，尤其是从事北斗系统研发的专业人员、cdma通信系统研发人员，以及通信电子类专业的高年级本科生和研究生阅读，既可作为教学培训的教材，也可作为相关专业工程技术人员的参考资料。(This book explains the design and development principle of the GPS receiver from the perspective of electronic technology and communication system. Its content focuses on the design principle and software implementation of the user terminal, that is, the receiver. The whole book is divided into two parts. The first part is the theoretical part and the second part is the realization part. Firstly, the basic purpose of navigation is expounded, and the characteristics of navigation signal are deduced by a simple two-dimensional navigation system. Then, the format of GPS signal is expounded. At the same time, the front-end part of radio frequency which directly affects the performance of the receiver is theoretically analyzed.)

A 凸轮是一个转动或滑动的片断，在机械联动使用特别是在将旋转运动转变为直线运动或反之亦然。 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

使用vhdl语言在altera公司的up3板上产生vga信号，里面有详细的解析和说明，是一个很好的教程。-use of the VHDL language ALTERA company"s board up3 have vga signal containing a detailed analysis and explanation is a good guide.

these are the source codes for the book " 100 power tips for FPGA designers"

quartus工具入门文档，altera公司官方软件翻译全文。-tool for quartus entry documents, altera company official translation of the full text of the software.

A controller for DDR2 on FPGA with vhdl, content testbench, model and textfile-generation/data-detection using python.