rand

LFM的脉冲压缩，即匹配滤波器的产生，并给出了压缩后的仿真波形。(LFM pulse compression, that is, the selection of matched filter, and gives the simulation waveforms compressed.)

说明：  切普信号生成，可以改变信号的起始频率和最终频率。(Be able to generate a linear-FM “chirp” signal that sweeps in frequency fromω1 = 2pi*f1 to ω1 = 2pi*f2 as time goes from t = 0 to T2. You can change any of these values.)

matlab 自带源码及解释说明，FCM算法matlab源代码注解求翻译(matlab source code and comes with an explanation, FCM algorithm matlab source code annotated translation request)

用于图像去噪算法实现，多种去噪算法在matlab 中的应用(Image denoising algorithm)

在无线通信体系中,由于开放的通信信道条件,卫星通信系统中通信链路容易受到平均大气条件的影响,尤其是采用Ka波段的高频信号的系统,容易受到降雨造成的雨衰影响,严重影响了系统的有效性和可靠性。(In a wireless communication system, the communication channel open, average atmospheric conditions vulnerable to the communication link in satellite communication system, especially the system of high frequency signal using Ka band, vulnerable to the influence of rain attenuation caused by rainfall, seriously affect the validity and reliability of the system. In digital systems, channel coding is often used to improve reliability, while modulation is used to ensure effectiveness. Low order modulation and large redundancy coding are adopted to improve the reliability.)

we have a photo camera with DC Motor and closed loop controller is equal k/s^2+s+k. first,we shoul find ZOH,then we identify the system with ARX model that na=nb=2 Here,we want to identify the Dynamic Linear System. we use different inputs such as normal distribution,uniform distribution,...

新型改进光双二进制传输的编解码方案 提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过 程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信 号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ 信号比MD．NRZ信号在传输后有更低的误码率。(Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction ， and couldbe di． recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’ formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．)

比较好的蚁群算法MATLAB代码,作为学习人工智能算法是比较好的例子(Good ant colony algorithm based on MATLAB code as a learning algorithm is a good example of artificial intelligence)

matlab s-function for discrete state equation

以单相光伏发电并网系统为研究对象，针对光伏发电并网技术，深入分析了光伏发电最大功率点跟踪技术和逆变器并网控制技术。在Simulink中搭建了光伏电池模型、基于扰动观测法的MPPT模型和使用电压电流双闭环SPWM控制策略来并网。(Taking the single-phase photovoltaic power grid system as the research object, aiming at the photovoltaic power grid technology, this paper analyzes the maximum power point tracking technology and inverter grid control technology. In Simulink, photovoltaic cell model, MPPT model based on disturbance observation method and voltage current double closed-loop SPWM control strategy are built.)