GPRS Main Desk software, support DL/T645 agreement, realize Collecting meter sof...

qpsk constellation and histogram

Description: This M-file plots the truncated Fourier Series representation of a square wave as well as its amplitude and phase spectrum.- Description: This M-file plots the truncated Fourier Series representation of a square wave as well as its amplitude and phase spectrum.

本人最近刚刚搞完串口操作,这是参考其他人的代码,并修改而成的.-recently I just get finished serial operation, which is reference to other people"s code, and the revisions.

NRF2401无线模块，STM32程序实现了数据双向通信.它分为接收和发送两部分，发送时发送的源程序，接收是接收的源程序，分别设置了俩个文件夹。nrf24l01在stm32的模块上，通过spi接口连接，实行通信，最终实现两块单独的stm32模块实现短距离的无线通信，速度高，功耗小。

VFP中应用收发短信-VFP applications send and receive text messages

个人财务软件，管理平日的支出和收入，这个是简单的1.0版本，后续版本我会继续推出的，个人拙作，见笑了。-personal finance software, management weekdays on the income and expenditure, this is a simple version 1.0, the follow-up version, I will continue to introduce, personal apology, a laughing stock.

通过对AODV理想的协议源码进行改进，添加黑洞节点，当黑洞节点接收到数据包的时候，立即以概率1丢掉数据包，使得自组织网络不能正常通信，通常情况下，自私节点会使网络性能急剧下降，解决自私节点的问题，是自组织网络的一大难题。

可以实现FIR滤波器任意阶数和窗函数下的设计。并且有可以在VC下显示幅频响应曲线和滤波效果。-Can be arbitrary order FIR filter and the design of window function. And the VC is shown in amplitude-frequency response curve and filtering effects.

二进制幅移键控（BASK）、二进制频移的现场可编程门阵列（FPGA）实现

matlab仿真实现无线传感器网络定位算法-matlab simulation of wireless sensor network localization algorithm