wsn-tracing

实现3*3天线阵列的时分和码分的在相同业务和不同业务情况下的仿真，业务分为：语音，数据，视频。(Time division and code division 3* 3 antenna array simulation in the same business and business case, the business is divided into: voice, data, video.)

gui_active - used to implement an abort function in a GUI progressbar - shows a progress bar dialog based on the function "waitbar"(gui_active- used to implement an abort function in a GUI progressbar- shows a progress bar dialog based on the function "waitbar")

杂草算法优化的目标函数机值求解.经过迭代,程序能快速收敛到相应的目标值.(Weeds algorithm optimization objective function value for solving machine. After iteration, the program can quickly converge to the appropriate target.)

基于MATLAB/simulink搭建的应用于永磁同步电机（PMSM）的无传感器控制，主要是基于矢量控制，采用滑模转速和转子位置观测器取代传统的位置传感器，最终实现对PMSM的控制(The sensorless control based on MATLAB/simulink for permanent magnet synchronous motor (PMSM) is mainly based on vector control. Instead of the traditional position sensor, the sliding mode speed and rotor position observer are used to control the PMSM.)

grid connected power system

本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)

Reduction in peak to average power ratio in OFDM.

If the used buffer size is smaller than the actual buffer size, regenerate the lookup table and write the new table to the file.

Most practical filters exhibit steady roll-off characteristic, in contrast to the sharp transition from the pass and stop bands. The important families of filters are: Butterworth, Chebyshev and Elliptic. As part of this lab, we study and design Butterworth filters. Butterworth filters are simple to design and have a maximally flat pass band response. In contrast the Chebyshev and Elliptic filters are difficult to design and have ripples in pass/stop band but have sharper roll off characteristics than Butterworth filters.

将蚁群优化算法与粒子群优化算法进行组合，并利用遗传算法的交叉操作与变异操作对粒子多样性进行改进，提高全局优化效率，并配有实例演示。(The ant colony optimization algorithm and the particle swarm optimization algorithm are combined, and the genetic algorithm is used to improve the diversity of the particles. )