codeutils

说明：  自适应滤波器代码，适用于研究生阶段数字信号处理课程。(Adaptive filter code, suitable for the postgraduate stage of digital signal processing courses. )

利用matlab编写的fdtd模拟程序！(Fdtd using matlab simulation program written!)

信道编码，用于信号在信道中安全传输，抵抗高斯噪声等干扰攻击。(Channel coding, for the secure transmission of the signal in the channel to resist attack Gaussian noise interference.)

解算图像曲线的函数解析式。给一个图像，最后算出其近似描述葵式子。(The solver function resolution of the image curve type. To an image, and finally calculate the approximate description Kwai formula.)

我们设计和实验证明 布拉格光栅波分复用器 三波长的平面光波电路复用 公交车站台。1310和1550 nm的光，被设计成 由一个半周期通过定向耦合器分离后 和一个完整的周期耦合作用与0.07和0.19分贝的损失， 分别。1492 nm的光反射回来的布拉格 光栅对定向耦合器及其制作少损失 超过2分贝。我们也介绍和讨论新概念 集成光学三工收发器，使用此过滤器。 (We designed and experimentally demonstrated a Bragg grating-assisted wavelength-division-multiplexing filter for the three-wavelength multiplexing on a planar-lightwave-circuit platform. The 1310- and 1550-nm lights were designed to be separated after passing the directional coupler by a half-cycle and a full-cycle coupling actions with losses of 0.07 and 0.19 dB, respectively. The 1492-nm light was reflected back by a Bragg grating fabricated on the directional coupler and its loss was less than 2.0 dB. We also introduced and discussed the new concept of an integrated optical triplexer transceiver using this filter.)

说明：  ofdm在matlab的详细实现过程，绝对是可以用的，即帮助你了解算法，也可以直观的看到结果。(OFDM in Matlab detailed implementation process that can definitely be used, which is to help you understand the algorithm can also be intuitive see the result.)

matlab与GUI心得matlab与GUI心得matlab与GUI心得(matlab interface with gui)

％help avifile 可以把屏幕图片做成avi ％也可以用如下打开和播放avi ％ mv=aviread( 14.avi ) ％ movie(mv) ％ 指定源目录 str_src ％ 指定图片个数，PICNum( Help avifile can make avi screen images can also be used as follows to open and play avi mv = aviread (14.avi) movie (mv) specify the source directory specified str_src picture number, PICNum)

针对基本无线传感器网络DV-Hop定位算法中，计算平均跳距时产生偏小误差的原因，提出了基于平均跳距修正的DV-Hop算法。改进算法中，引入信标节点个数比例、所有信标节点平均跳距的最大值以及所有信标节点平均跳距的平均值三个因子，并采用它们对平均跳距进行修正。通过Matlab软件对算法进行仿真验证，结果表明，改进后的 DV-Hop 算法有效降低了未知节点的定位误差，是一种可行的无线传感器网络节点定位解决方案。(DV-Hop localization algorithm for wireless sensor networks, we calculate the average hop distance small error of reasons, raised the DV-Hop algorithm based on the average hop distance correction. Improved algorithm, the proportion of the number of nodes, the introduction of beacons, the beacon node average maximum jump distance as well as all the beacon nodes average jump from the average of three factors, and their average hop distance correction. Matlab software simulation results show that the improved DV-Hop algorithm effectively reduce the unknown node positioning error, the solution is a viable wireless sensor network node positioning algorithm.)

program for pam and qpsk for matlab