datajob

Frame segmantation in matlab

Wavelet denoising For using this code need to use signal toolbox and general toolbox in your matlab In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size 512 by 512 and then generate noisy image by adding a Gaussian noise but under the condition of having SNR=20dB by select the suitable value of variance for Gaussian noise formula. Second step is performing wavelet denoising using the hard thresholding (Use the db 6 for four levels) in the condition of finding the optimal thresholding value of T in terms of the SNR obtained. It means that, we should find the highest SNR value by finding the suitable value for threshold. Then we asked to do the same process but this time using soft thresholding. Finally for the last part of question one, we should compare the results of the obtained SNR with the recommendations of 3*sigma for the hard thresholding and 3/2*sigma for the soft thresholding.

关于雷达系统中目标航迹的检测前跟踪（TBD）程序(About radar system detected the target track before the track (TBD) program)

说明：  OFDM时域定时测试，分别在高斯白噪声信道和瑞利信道中(OFDM time-domain time test, respectively white Gaussian noise channel and Rayleigh channel)

三种分集增益，最大比合并，选择合并，等增益合并(equal gain combining-spatial diversity )

说明：  运用matlab求矢量x的均值和方差。代码实现简单，运行正确(Using matlab find the mean and variance of the vector x. Code is simple, right)

为研究局部阴影效应对光伏发电系统的影响，首先建立了光伏阵列工程数学模型，分析局部阴影条件下光伏阵列的输出特性。为了便于工程分析，该文利用PVSYST软件分析比较单晶硅、多晶硅和薄膜电池等3种不同材料光伏电池在局部阴影条件卜的输出功率，为工程应用提供了良好的指导作用。最后提出了几种提高光伏阵列抗局部阴影能力的措施厂 (To investigate the effect of local shading effects on photovoltaic systems, photovoltaic array project was first established mathematical model to analyze the output characteristics under conditions of partial shading of the PV array. In order to facilitate engineering analysis, this paper use PVSYST software analysis and comparison monocrystalline, polycrystalline and thin film batteries, photovoltaic cells of three different materials in partial shade conditions Bu output power for engineering applications provide a good guide. Finally, several photovoltaic arrays to improve the ability to measure resistance to partial shade plant)

Graphics of PID Control of temperature

The program is about creating spanning tree in matlab environment

说明：  介紹 MATLAB 對於聲音訊號（Audio Signal，簡稱「音訊」）的基本操作，包含讀檔、寫檔、錄音與播放。(MATLAB for voice signaling (Audio Signal, referred to as the "voice") as the basic operation, including stalls read, write stalls, sound recording and playback.)