通信系统解调中载波锁相环的设计

数字基带传输系统的matlab仿真与分析,内含眼图,码间干扰等(Digital baseband transmission system matlab simulation and analysis, including an eye diagram, such as inter-symbol interference)

信道为瑞利信道，S_D的距离为1米，三跳协作通信系统中S_R、R1_R1、S_D的距离均为1/3米。调制方式为BPSK,信噪比在-15dB-15dB间，接收端合并方式为ERC,迭代次数为1000(The channel is Rayleigh channel, the distance of S_D is 1 m, and the distance of S_R, R1, S_D in three-hop cooperative communication system is 1/3 M. The modulation mode is BPSK, the signal-to-noise ratio is between - 15dB and 15dB, the receiver merge mode is ERC, and the number of iterations is 1000.)

Smoothing Filter-based Intensity Modulation a spectral preserve

卡尔曼滤波器是一个（最优化自回归数据处理算法）。对于解决很大部分的问题，他是最优，效率最高甚至是最有用的。(The Calman filter is an (optimized autoregressive data processing algorithm). For solving most problems, he is the best, the most efficient and even the most useful.)

这是自己收集的一些有关信号分选的比较优秀的毕业论文，希望对需要的人有所帮助(Some comparison of the signal sorting excellent thesis)

随着网络带宽的越来越大以及嵌入式技术和嵌入式设备的日益发展成熟，过去的很 多设备如今变成了可管理的网络设备，它们不仅嵌入了操作系统和拥有自己的IP 地址，而 且还通过嵌入web 形式的网络代理端以方便用户的控制和管理。本文通过在arm920t 的开发 板上移植BOA（一个开源的web server），并嵌入到接入网络设备当中以实现对其进行web 化的控制和管理。(With increasing network bandwidth and embedded technology and the increasing development of sophisticated embedded devices, over the past many devices now become manageable network equipment, which not only embedded operating system and has its own IP address, and through web forms embedded in the network proxy client to facilitate the user' s control and management. In this paper, the development board in arm920t transplant BOA (an open source web server), and embedded in the access network equipment for them to achieve their web based control and management.)

说明：  VB6.0开发道闸控制程序，程序控制开闸、落闸(failed to translate)

GSM reading book in the would

利用MATLAB软件对OFDM系统做出仿真。仿真中采用QPSK调制技术，并加入高斯白噪声，最终得到QPSK星座映射图以及BER曲线图。由仿真结果可以看出，OFDM在高斯信道具有良好的抗噪声性能，误码率较低。(MATLAB software is used to simulate the OFDM system. In the simulation, QPSK modulation technology is used, and Gauss white noise is added, and the map of the QPSK constellation and the BER curve are finally obtained. It can be seen from the simulation results that OFDM has good anti noise performance and low error rate in Gauss channel.)

实现完整的4CPM(h=1/2)调制解调程序，包括消息序列生成，串并转换，升抽样成形滤波，数字上变频，多项式非线性效应，AWGN信道，到接收端数字下变频，降采样，匹配滤波，接收端基带信号星座图。(Message sequence generation, serial-parallel conversion, up sampling shaping filter, digital upconversion, polynomial nonlinear effects, AWGN channel, to the receiver digital down-conversion, down-sampling, the matched filter, the receiving end the baseband signal constellation.)