hough_line_dect

数字锁相环数学模型,对有研究信号调制的数学建模.(Digital phase-locked loop mathematical model of research has the mathematical modeling of signal modulation.)

一种新的内插方法，方向自适应内插，运用平行四边形插值核(A new interpolation method, the direction of adaptive interpolation, interpolation using nuclear parallelogram)

this code implementation cfar.

一个简单的MATLEB图像处理软件，可以用来实现图像的打开，灰度变换，添加噪声，几何操作，绘制直方图等。(A simple MATLEB image processing software can be used to achieve the image open, gray-scale transformation, adding noise, geometric operations, draw histogram and so on.)

说明：  描述了采用卷积码的QPSK系统的代码编写，通过运行代码可以看到系统性能(bpsk)

本程序模拟一个机器人躲避障碍的仿真.其中有不完善的地方 迫于精力有限,具体过程还有点粗糙,读者可以加以修正 (a simulation of the robot avoid obstacles to the simulation. Which forced the inadequacies in the energy are limited, There is a process in concrete rough, and readers can be amended)

MPC code space state model whithout constraints

DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求： (1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。 (DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.)

ofdm用bpsk下的编程，最后可以做用ofdm和不用的情况的对比(ofdm bpsk programming)

说明：  Matlab使用矩量法求解同轴方腔滤波器腔间耦合系数 求解两个同轴方腔在一定的开窗大小下，确定耦合系数。 首先利用矩量法求解两个同轴方腔的互电容和自电容，详细原理见参考书。 其次再由耦合系数得到两个腔体间耦合窗的大小，这在工程实践中具有很大的作用，耦合系数K的求解详见m文件。(Matlab using the method of moments coaxial cavity filter cavity coupling coefficient between the two coaxial cavity for solving a certain window size, determine the coupling coefficient. First use of moment method to solve two coaxial cavity of the mutual capacitance and self-capacitance, see the detailed principles of reference. Secondly, the coupling coefficients are then the coupling between the two cavities the size of the window, which in engineering practice has a significant role, see the solution coupling coefficient K m file.)