costas loop 2. Bpsk symbols

蜂窝移动通信 蜂窝的概念是其中要求更换一个单一的、 系统级主意高功率发射机 （大单元格） 与许多低功率发射机 (小 细胞) 每个提供覆盖的服务区只有一小部分

In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered at the detector output.-In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered at the detector output.

PDA与PC数据交互系统-PDA and PC data interactive system

用visual c++编写的MFC程序，可以实现PC对PC的通信及PC对单片机的通信。-Visual c++ using the MFC process to prepare, you can achieve PC to PC and PC communication on single-chip communications.

I2C总线协议V2.1.zip 详细介绍I2C总线协议及编程实现-I2C bus protocol V2.1.zip detailed I2C bus protocol and Programming

一个简单的通讯录，自己做的，多多关照，应该能通过审核-A simple address book, make their own, and lot of attention, it should be through the Audit

多处理器支持论文，相当好，大家不放-multiprocessor support papers pretty well, we look at the link!

ComPort Library version2.62 for Delphi 3, 4, 5 and C++ Builder 3, 4, 5

可靠性和有效性是数字通信系统的两大性能指标。然而,在数字通信系统中,二者往往是一对矛盾,在频带资源日益紧张的当代,如何在保证一定通信可靠性的前提下尽可能提高有效性是通信领域永恒的主题。在光通信系统中,接收机在进行相位恢复时必须设法克服相位模糊问题,为此,常常采用差分调制(DQPSK)。然而,差分调制会导致信号误码率加倍,产生额外的信噪比代价。本文分析了迭代差分解调译码方案,即将LDPC编码和差分调制作为整体进行优化。仿真结果表明,该方案既可以克服相位模糊又能补偿差分代价,增强了系统的可靠性。同时,本文分析了适合该方案的LDPC码的度优化算法和满足任意度分布的校验矩阵的构造方法。在无线通信系统中,无线信道的衰落特性严重影响通信传输的有效性与可靠性。分集技术是一种典型的抗衰落技术,本文研究了联合编码调制分集技术,对该技术的两个关键因素：多维旋转调制和分量交织器的设计进行了重点研究,使得该技术更好地将信道编码增益与时间、频率、空间和调制分集相结合,使系统达到很高的频谱效率,有效地抵抗衰落信道下的各种干扰,增强了整个通信系统的有效性与可靠性。

This simple example uses the Peripheral Support libraries to provide diagnostic functionality for a HCI firmware configuration. LEDs provide status information on the number of ACL connections in use and transmit/receive events. This application does not manage any Bluetooth connections.