Catalan

微软RIL白皮书。介绍了微软RIL(Radio Interface Layer)的架构和开发所必须具备的知识，包括简介、RIL Modem接口、开发环境、平台实现、测试，以及相关信息(Microsoft White Paper RIL. It introduced Microsoft RIL (Radio Interface Layer) architecture and the necessary knowledge for developer, including the Introduction, RIL Modem interface, development environment, platform, testing, and related information)

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 )

说明：  手机游戏模拟器 对于开发手机游戏的朋友来说很难得 。只有源代码 没有文档(Mobile phone game emulator for the development of mobile games for a rare friend. Not only the source code documentation)

数字信道化器的模拟程序，当输入信道个数为奇数时，子信道的提取过程模拟(Digital channel of device simulation program, when the input channel number is an odd number, the channel of the extraction process simulation)

4发1收差分空时分组码系统的编码和译码程序(DSTBC coding and decoding program)

stm32f407 跑马灯实验 原子个例程 学习模块(stm32f407 led run stm32f407 stm32f407 stm32f407)

实现串口通信 可以收发数据 可以是数字也可以是ASCII(Serial communication)

说明：  数据辅助定时同步算法T.Schmidl 和D.Cox,Park&Cheon和minn(Data-Assisted Timing Synchronization Algorithms T.Schmidl and D.Cox, Park&Cheon and Minn)

基于matlab实现的循环谱估计算法，可以对具有循环平稳特点的信号进行参数估计(Matlab-based spectral estimation algorithm to achieve the cycle, you can have the characteristics of the signal cyclostationary parameter estimation)

matlab中离散信号小数点时延的实现算法,可以精确实现一段序列的延时(numerical time-delay)