vblastpic14

高通平台电信版CDMA手机写入MEID号码(Write MEID tool for Qualcomm platfrom)

document for OFDM system

对铭泰读卡器不同扇区进行读写操作，初始化扇区，扇区信息加密。(Reading and Writing Mingtai Card Reader)

一个用c#实现对研华ADAM4117数据采集的控件，对工控行业需要编程实现ADAM4117数据采集的开发人员有一定参考价值(A c# of Advantech ADAM4117 data acquisition control, the industrial sector need programming realize ADAM4117 data acquisition and developers have a certain reference value)

说明：  基于宏小区及微小区MIMO信道模型，比较了MIMO信道在两种传输环境中的空间相关特性，通过数值分 析方法得到了两类信道空间相关性随发送端、接收端天线阵列的分布而变化的特征曲线，并分析比较了信道参数， 即到达角的角度扩展，对空间相关性的影响。(The space correlation is analyzed in different propagation conditions including the MIMO macro-cell and micro-cell applications. The characteristics curves describing the space correlation versus the distance of antennas are obtained according to the numerical analysis. The effect of the spread of the angle of arrival on the space correlation is also investigated. )

提供了一种以matlab/simulink为基础方法，采用lqr和滑模变结构控制相结合的控制器，可用于其他模型(Provides a matlab/simulink based method lqr and sliding mode control combined controller can be used in other model)

Chuong trinh ve do thi buc xa cua anten day va anten mang (theo dang 2D va 3D)

说明：  Ham Radio Utility software for Doppler Radar, for Plane Scatter

25.996信道模型的matlab代码，根据标准协议编写(channel model of 25.996)

1. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请清楚的描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用S-function产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 (Doppler spectrum of radio channel 1, please answer the following questions (1) In some wireless channel, radio channel Doppler shift will cause the output signal aliasing. Please clearly describe aliasing for various reasons )