question4

Superviewshed将计算所引用的地形和目标给予高度观察员矩阵洛杉矶分校。此外，标准的最低高度的地形观察将输出。运行约16倍视域。 (Superviewshed will calculate LOS of a referenced terrain matrices given observer and target altitudes. In addition, the standard minimum height observable of the terrain will be output. Runs approximately 16 times faster than viewshed.)

It is in a frequency domain

牛顿方法优化算法可以用于多方面的例子，很不错。(Newton method for optimization algorithm can be used for a wide range of examples, very good.)

比较NLMS、基于分块的LMS和基于符号的LMS三种算法，并且实现信道均衡(More NLMS, based on the LMS and block LMS three algorithms based on symbols, and to achieve channel equalization)

This code contains MATLAB code to automatically create a wireless network

只是一个数字水印的小程序，希望能给大家一些帮助(digital watermark)

基于RLS算法的波束整形滤波器MATLAB仿真，可直接实用。(failed to translate)

说明：  DCT域的嵌入程序，可以获得较高的鲁棒性，且嵌入秘密信息后的不可感知性也很好。(DCT embedded procedures, get higher robustness, and secret information embedded in the perception is also not very good.)

基于simulink的四旋翼飞行器动力学建模与简单PID控制。(Based on the four-rotor dynamics modeling with a simple PID control simulink.)

说明：  matlab gui例子 对初学者会有较大帮助(matlab gui)