scale

PID controler/ matlab code

omnet++ implementation of wsn.

a very good book for the beginer design system

实现OFDM-MIMO系统，包括数据产生，调制，加CP，发送，解调，去CP等(OFDM-MIMO system, including data generation, modulation, plus CP, send, demodulation, to the CP)

用matlab编程求解无约束优化问题、线性规划问题即在一组线性不等式或等式组的约束条件下求某个线性函数的最值问题(Matlab programming for solving unconstrained optimization problems, linear programming problems that most value problem for a linear function under the constraints of a set of linear inequalities or equations group)

matlab bluetooth仿真程序(BlueTooth Matlab simulation program)

Canonical Variates Analysis

cdma前向链路，也就是下行链路的仿真，使用的软件是MATLAB(cdma forward link, that is, downlink simulation, using the software MATLAB)

用有限元软件分析模型，用于超声弹性成像，有一定的参考价值(Software analysis using finite element model for ultrasonic elasticity imaging, there is some reference value)

现需要在高度为600~700KM范围内，回归周期为30天的太阳同步轨道上布置一颗L波段的合成孔径雷达卫星。 1. 请设计合适的轨道参数，并仿真对应轨道下一个运行周期内星下点轨迹图（纬度和经度两个图）； 2. 计算多普勒中心频率，多普勒调频率与纬度的关系图（设姿态角为0°，天线视角20°~60°，推荐35°）； 3. 按高斯投影方式，将星下点轨迹图投影到地图坐标上。(Now requires a height of 600 ~ 700KM range, return period of 30 days are arranged on a sun-synchronous orbit L-band Synthetic Aperture Radar satellites. 1 Please design the appropriate orbital parameters and simulate the corresponding orbit within the next operating cycle nadir trajectories (latitude and longitude two graphs) 2. Calculate the Doppler center frequency, Doppler frequency and the relationship between latitude Figure (set attitude angle is 0, the antenna angle of 20 to 60, recommended 35) 3 Press Gauss projection, the nadir trajectories projected onto the map coordinates.)