LDPC编码在OFDM系统中的应用与性能分析 关于LDPC 在OFDM 中的一篇文章...

contruction Spring Mass Damper Model with Proportional plus Derivative (PD) Feedback which was done in simulink

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这是基于78k0八位微控制器的空间相位调制技术介绍以及主体程序-78k0 which is based on 8-bit microcontroller space phase modulation technology presentations and the main procedure

K149. USB PIC PROGRAMMER

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

USB 1.1 协议详简，对做usb 开发的 可以好好看看。 -USB 1.1 protocol detailed briefing on the development of the so usb be a good look.

人事管理系统是企业用来管理员工信息、工资、考勤和工作考核信息的一套信息化系统。本系统符合操作简便、界面友好、灵活、实用、安全的要求出发，完成人事管理的全过程，包括“系统”、“职能设置”、“基本信息”、“工资管理”、“工作评价管理” 以及“考勤管理”等功能模块-The human resource management system is used to manage employee information, salary , attendance and work assessment. This system includes several sections, such as, system, function setting, basic information, salary management, work assessment management, attendance management and so on. the system are easy operation, friendly interface, agile, economic and safe.

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基于流媒体的视频点播系统的设计与实现 硕士学位论文-Streaming media-based VOD System Design and Implementation of a master

1. 完成时／分／秒的依次显示并正确计数，利用六位数码管显示； 2. 时／分／秒各段个位满10正确进位，秒／分能做到满60向前进位，有系统时间清零功能； 3. 定时器：实现整点报时，通过扬声器发出高低报时声音； 4. 时间设置，也就是手动调时功能：当认为时钟不准确时，可以分别对分／时钟进行调整； 5. 闹钟：实现分/时闹钟设置，在时钟到达设定时间时通过扬声器响铃。有静音模式。 -1. Completed/min/sec display and correctly followed by counting, using six digital tube display 2. When/min/sec in the paragraphs of the correct 10-bit binary full, s/sub can do to advance the age of 60-bit, systematic function of the time cleared 3. timers: realize the whole point of time, by the time the level of sound from loudspeakers 4. time settings, which is manually adjusted when the function: When the clock does not consider accurate, they can respectively sub/clock adjustments 5. alarm clock: the realization of sub-/ when the alarm clock settings, settings in the clock arrival time ringing through the loudspeakers. There are silent mode.