Fruit-classification-code-

Abstract：Thearticleismainlydevotedtothetheoryaswellastheachievementonthemodulationanddemodulationofπ/ 4-DQPSKsysteminthesoftwareSystemView.Besides，thearticleanalysesthedynamicandstatic behaviorsoftheπ/4-DQPSKsystemaswellastheperformanceagainstnoiseundertheconditionofGaussnoise channel.Thecomparisonismadeonthespectrumandanti-noiseperformancebetweenπ/4-DQPSKandQPSK underthethesamechannel.Theresultofsimulationshowsthatthespectrumexpandingofπ/4-DQPSKissuperiortothatoftheQPSKsystem. Keywords：π/4-DQPSK；SystemView；computeraideddesign（CAD）；Matlab(Abstract: Thearticleismainlydevotedtothetheoryaswellastheachievementonthemodulationanddemodulationof pi/4-DQPSKsysteminthesoftwareSystemView.Besides, thearticleanalysesthedynamicandstatic behaviorsofthe pi /4-DQPSKsystemaswellastheperformanceagainstnoiseundertheconditionofGaussnoise channel.Thecomparisonismadeonthespectrumandanti-noiseperformancebetween pi /4-DQPSKandQPSK underthethesamechannel.Theresultofsimulationshowsthatthespectrumexpandingof pi /4-DQPSKissuperiortothatoftheQPSKsystem. Keywords: Pi /4-DQPSK; SystemView; Computeraideddesign (CAD); Matlab)

卡尔曼滤波在矿区开采沉陷监测中水准数据处理及沉陷预测中的应用。(The application of Kalman filter in mine subsidence monitoring。)

paper for research science

用基带等效方式仿真16-QAM载波调制信号在AWGN下的误码率(With the baseband equivalent simulation 16-QAM carrier frequency modulation signal in AWGN bit error rate)

在matlab中利用声卡对语音信号进行实时采集，并采集波形图，对采集信号进行频谱分析，画出频谱图，能查找峰值频率。有详细的注释和参数调整说明(In Matlab using real- time audio of the speech signal acquisition and acquisition waveform, Spectral Analysis of Signals and draw the spectrum, can find the peak frequency.A detailed description of the annotation and parameter adjustment)

说明：  矩阵求逆（lu分解法），已在matlab下进行测试，计算精度大概为小数点后4位(Matrix inversion (lu decomposition method), has been tested under matlab, after the decimal point accuracy is approximately 4)

混沌的分岔图进行研究 有利于更好地分析混沌系统(The bifurcation diagram of chaos are studied Is conducive to better analyze chaotic system )

pca和kpca程序，对大家有很大的帮助，系统辨识和故障识别，很有用的，谢谢(Pca and kpca program, to all have a big help, system identification and fault recognition, very useful, thank you )

基于Matlab Gui的图像去噪程序，内含多种小波去噪方式，PSNR&MSE对比等。(Based on Matlab Gui denoising procedures, containing a variety of wavelet de-noising way, PSNR & MSE contrast.)

按照A13律编码对一个离散序列对信号进行编码，通信原理(encode by A13-law)