KPCA

用Matlab来模拟光通信中的光纤交叉相位调制。此类仿真比较少，值得参考。(Using Matlab to simulate the optical fiber communication cross-phase modulation. Reference worthwile.)

说明：  max3232分立元件内部结构图及其功能引脚。(max3232 discrete components within the structure and function pin.)

CIC每级位宽计算，包括内插滤波器每一级位宽计算，抽取滤波器每一级位宽计算。(CIC Hogenaner bits calculation)

sc算法的仿真程序实现 基于最大似然算法的频偏估计实现(sc algorithm simulation program based on maximum likelihood estimation algorithm to achieve the offset)

用MATLAB对微带贴片天线进行仿真，出来S曲线图(Using MATLAB simulation of microstrip patch antenna, out of S curve)

经常看到很多朋友问定步长的龙格库塔法设置问题，下面吧定步长四阶龙格库塔程序贴出来，有需要的可以看看 (Often see many of my friends ask determining step Runge-Kutta method set problem, the following step you set the fourth-order Runge-Kutta procedures paste out, there is a need to look at the)

2-D–3-D Frequency Registration Using a Low-Dose Radiographic System for Knee Motion Estimation

一种通用型PD雷达目标模拟器,介绍一种雷达目标模拟器，用两台高稳定度且具有外时基功能的频率合成微波信号源分别作为回波信号及杂波信号载波源，其外时基口作为雷达相参信号输入口。视频脉冲延时及多普勒撅移都可由计算机控制，模拟雷达与目标之间的不同距离及相对速度.模拟器收发共用一付 天线，天线安装在可旋转机构上，用以检测雷达角跟踪能力. (A Common PD Radar Target Analogue , introduced a radar target simulator, with two high-stability and external time base function of frequency synthesized microwave signal source, respectively, as the echo signal and the the clutter signal carrier source, its external time base port as radar coherent signal input port. The video pulse delay and Doppler pursed shift can by distance and relative speed between different computer controlled, simulated radar target simulator transceiver shared a pair of antenna, antenna mounted on the rotatable mechanism to detect radar angle tracking capacity.)

The principal characteristic of VSC-HVDC transmission is its ability to independently control the reactive and real power flow at each of the AC systems to which it is connected, at the Point of Common Coupling (PCC). In contrast to line-commutated HVDC transmission, the polarity of the DC link voltage remains the same with the DC current being reversed to change the direction of power flow.

Inter-symbol interference if not taken care off may cause severe error at the receiver and the detection of signal becomes difficult. An adaptive equalizer employing Recursive Least Squares algorithm can be a good compensation for the ISI problem. In this paper performance of communication link in presence of Least Mean Square and Recursive Least Squares equalizer algorithm is analyzed. A Model of communication system having Quadrature amplitude modulation and Rician fading channel is implemented using MATLAB communication block set. Bit error rate and number of errors is evaluated for RLS and LMS equalizer algorithm, due to change in Signal to Noise Ratio (SNR) and fading component gain in Rician fading Channel.