With regard to PCI bridge chip design, a total of nine documents, a comprehensiv...

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

mx27开发板原理图，在原厂基础上作了很大修改，接近产品化，很有参考价值-mx27 sch

流媒体 网络编码 会议论文 清华大学课程指定阅读文献-Building Scalable and Robust Peer-to-Peer Overlay Networks for Broadcasting using Network Coding.pdf Deadline-aware Network Coding for Video on Demand Service over P2P Networks.pdf Network Coding for Peer-to-Peer Live Media Streaming.pdf ……

this program is for using the switch in P89c51 embedded microcontroller kit

一篇介绍自动调焦用于生物显微镜的英文章，包括其总体结构。-The bioengineering is a popular and fast-developing researching topic in recent years. Among them, the observation of microorganism is a very important experimental approach of bioengineering. As the biological sensing chip technology becomes mature, it is even beneficial to the research. Most of the biological sensing chips for measuring and observation adopt different type of precise microscopes and the corresponding software.

Maximum Likelihood Methods in Radar Array Signal Processing

SNR versus detection range for both target types with and without pulse integration.-SNR versus detection range for both target types with and without pulse integration.

energy meter ICs schematic library for altium

高速电路越来越普及，EMC和EMI的问题也受到重视．-High-speed circuits is becoming increasingly popular, EMC and EMI problems be taken seriously.

rose建模工具的使用，可以很好的帮助设计出好的软件-rose modeling tools used to be well designed with the help of good software