In the article Introduction OFDM communication system commonly used in channel e...

摘要描述gps这个系统的matlab仿真,对其中捕获和跟踪的仿真比较详细-Gps the system summary description of the matlab simulation, capture and tracking of them in more detail the simulation

SYMPCHUNK sets the number of symbols demodulated at once with a constant carrier frequency and symbol timing offset. This is a fundamental decoder parameter that establishes its carrier and symbol timing tracking bandwidth. Set it too low and the demodulator can"t accurately determine carrier frequency and symbol timing on a noisy signal. Set it too high and the demodulator may not be able to track large symbol rate offsets caused by Doppler shift and/or A/D or spacecraft clock errors. Or it might have trouble tracking high rates of change in the carrier frequency due to Doppler acceleration.The current value of SYMPCHUNK is 4*N1 = 512, where N1 = 128 is the order of the convolutional interleaver. 512 symbols is 512 milliseconds at 1000 symbols/sec, giving a frequency/time determination SNR that is 10*log10(512) = 27 dB greater than the Es/N0, not counti

手机维修通讯软件-mobile communications software maintenance

very important ofdm document

写24CXX的工具可以写24C04-24C512-24Cxx writing tool can write 24C04-24C512

这是一个WINDOWS下的多串口驱动代码，非常方便好用，希望大家多多使用支持！-WINDOWS This is a multi-serial port driver code, very easy-to-use, I hope a lot of use in support of U.S.!

光纤光缆技术发展以及在FTTH中的应用 综述了近期光纤光缆制造、施工及维护技术上的发展特点，分析了其发展趋势，并就我国光纤光缆技术与产业的发展提出了一些值得思考的问题。FTTH正在走入人们实用化的视野，国内外很多光缆生产厂商或研究所都提出了自己的构想，本文着重介绍了FTTH应用中的一些典型的光纤及光缆技术，对FTTH在我国的发展前景做了分析，并提出了自己在FTTH发展中的一些观点。-Technological development of optical fiber and cable as well as in FTTH Applications in the near future of optical fiber and cable manufacturing, construction and maintenance of the characteristics of technological development, analyzes its development trends, and technology with China s optical fiber and cable industry raised some food for thought. FTTH is the people into a practical perspective, many domestic and international fiber optic cable manufacturers or research institutes have put forward their own ideas, this article highlights the FTTH application of some typical fiber-optic and fiber optic technology, the development of FTTH in China prospects analysis and put forward its own FTTH development in some of the points.

When two dice to seven points and 11 wins When two dice and for two points. Or 3. Or 5 to lose. on the other to continue throwing, if referrals to lose seven, and the last time it won -When two dice to seven points and 11 wins When two dice and for two points. Or 3. Or 5 to lose. On the other to continue throwing, if referrals to lose seven, and the last time it won

实现MSN自动转发消息的功能，利用了MS提供的MSN com接口，直接调用就可以了，也可以获取所有联系的列表，具体的接口参照MSDN上的说明-achieve MSN automatically forwarded to the news function, use of the MS MSN com interface, called directly, and they can also can get a list of all links, the interface reference to the specific instructions on the MSDN

此代码是组态王软件与宇衡电子屏通讯的源代码，通过此驱动可以向电子屏发送信息-This code is Kingview software and Yu-heng electronic screen communications source code, through the driver can send a message to the electronic screen