Fir_filter

line detection using Hough transform

数字控制系统是一种以数字计算机为控制器去控制具有连续工作状态的被控对象的闭环控制系统。因此，数字控制系统包括工作于离散状态下的数字计算机和工作于连续状态下的被控对象两大部分。我的课题的数字部分（PID）仿真由相应的离散传函实现，运用数字PID对被控对象实行准确控制。通过调节比例（P）、积分（I）、微分（D），使对象的输出达到预期的效果。(Digital control system is a kind of digital computer for the controller to control a continuous state of the object and closed loop control system. Therefore, the digital control system, including work on the discrete state of the digital computer and work in a continuous state of the plant is two parts. My topic of digital section (PID) simulation by the realization of the corresponding discrete transfer function using the digital PID control of the plant is implemented accurately. By adjusting the ratio of (P), integral (I), differential (D), so that the output of the object to achieve the desired results.)

一个ＭＡＴＬＡＢ源函数，用来计算插值，可以选择使用线性，三次样条插值，Hermite插值等方法，希望对大家有用。(A MATLAB source function, used to calculate the interpolation, you can choose to use linear, cubic spline interpolation, Hermite interpolation, in the hope that useful.)

利用M函数仿真扩频通信系统。6个用户的CDMA的同步通信系统，每个用户利用L＝31的Gold码，进行扩频，信道为AWGN信道，接收端利用匹配滤波器进行检测。绘出当N＝10000个发射比特下，SNR＝0：15（dB）时的误码率曲线。 (M function simulation using Spread Spectrum Communication System. 6 simultaneous users of CDMA communication system, each user of the L = 31 the use of Gold codes for spread spectrum, channel for the AWGN channel, the receiving end to detect the use of matched filter. Drawn when N = 10000 bits of transmission, SNR = 0:15 (dB) when the bit error rate curve.)

高斯有色噪声生成，有色噪声的谱估计及其在雷达中的应用(gauss noise generation)

说明：  采用正测式合成孔径成像雷达的信号处理仿真算法，可以用于初学者仿真，和工程设计中(Is measured by synthetic aperture imaging radar signal processing simulation algorithm can be used for beginners simulation, and engineering design)

以一个简单的例子说明模拟退火算法的思想 联合开发网 - pudn.com

MIMO系统中QPSK信号的MMSE检测算法程序，用于衰落信道环境。(MMSE detection for QPSK signals in MIMO systems.)

dc-dc buck电路，仿真效果较好，偏差控制的很小，pi效果不错(DC-DC buck circuit, simulation effect is good, deviation control is very small, PI effect is good.)

一、直接数据通道传送 二、常用DMAC芯片— Intel 8237 三、IBM PC/XT中的 DMA 控制逻辑 四、应用举例 (A direct transfer two data channels, often DMAC chip- Intel 8237 3, IBM PC/XT in the DMA control logic 4, Application Examples)