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文主要目的是针对讯号频谱分析仪(Signal spectrum analyzer)做功能测试，以确定讯号频谱分析仪之各种运算功能正确，其中测试共
分为正弦与余弦波检查、反假象滤波器检查(Antialiasing Filter Check)、频率响应函数与相位角检查(FRF & Phase Check)、自身能量密度函
数检查(Power Spectrum Check)、动态范围检查(Dynamic Range Check)等五个项目的快速傅立叶转换检查(Fast Fourier Tran
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PropCode2 is a MATLAB implementation of the algorithm described in Chap-
ter 3 of The Theory of Scintillation with Applications in Remote Sensing by
Charles L. Rino, John Wiley & Sons IEEE Press, 2010. The algorithm simulates
electromagnetic (E
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对一组数据进行统计形态分析，包括概率密度函数，功率谱，分布曲线4参数等-The statistical form a set of data analysis, including probability density function, power spectral distribution curve parameters
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一维序列x(n)的连续功率谱分析，ol(0:m)频率，tl(0:m)周期，sl(0:m)连续功率谱，st95(0:m)红噪音或白噪音谱的95 置信上限，strw(0:m) 红噪音或白噪音的谱密度，其中m=[n/2.]。-Continuous power spectral analysis of the one-dimensional sequence x (n) of the continuous power spectrum, ol (0: m), frequency, tl (0: m) c
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用FFT计算信号的功率谱密度时，需要先计算FFT，再计算双边谱密度，然后计算单边谱密度。在matlab里注意FFt要除以采样点数，计算双边谱时要注意除以频率分辨率。
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When calculated using the FFT power spectrum density signal, you need to calculate the FFT, and then calculate the bilateral spectral density, and then calculate
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利用LS-TLS算法估计ARMA模型中AR参数估计谱功率密度-Use LS-TLS algorithm to estimate the ARMA model parameter estimation AR spectral power density
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风电塔架风速时程曲线与风荷载时程曲线模拟。本代码依据IEC 61400-1标准，用于模拟具有一定功率谱密度和自相关性的风速时程曲线，并计算叶片及塔架上的风荷载。方法为基于三角级数叠加的谐波合成法（Hansen，2008）和叶素动量法。功率密度谱采用Kaimal谱函数。-Curves of wind speed and wind load-time curve Cheng wind tower. The code according to IEC 61400-1 standards, and pr
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this program of function spectre using to draw power of density spectral
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PropCode2 is a MATLAB implementation of the algorithm described in Chap-ter 3 of The Theory of Scintillation with Applications in Remote Sensing byCharles L. Rino, John Wiley & Sons IEEE Press, 2010. The algorithm simulates
electromagnetic (EM) wav
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符合瑞利包络的杂波功率谱与幅度概率密度函数。-The spectral power spectrum and amplitude probability density function of Rayleigh envelope
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采用直接法或间接法（通过自相关函数）编制matlab程序，计算信号cos（2πf1t）+cos（2πf2t）叠加高斯白噪声后的功率谱密度。(Matlab program is compiled by direct method or indirect method (through autocorrelation function) to calculate the power spectral density of signal cos (2 PI f1t) +cos (2 PI f2t) s
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构造均匀白噪声、服从高斯分布的白噪声及粉红噪声，并得到它们的自相关函数、功率谱密度等(Constructing uniform white noise, white noise obeying Gauss distribution and pink noise, and obtaining their autocorrelation function, power spectral density, etc.)
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SSB 调制信号，代码含有调制信号波形和功率谱密度波形(SSB modulated signal, code containing modulated signal waveform and power spectral density waveform)
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能够生成几种代表信号并且进行频谱分析、功率谱密度分析，还含有一个iir低通滤波器和一个fir高通滤波器的简易示范(It can generate several representative signals and carry out spectrum analysis and power spectral density analysis. It also contains a simple demonstration of IIR low-pass filter and a fir high
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产生m序列
画出其自相关函数和功率谱密度曲线
利用m序列模二产生gold序列
计算gold序列的互相关函数(Generating M-series
Draw the autocorrelation function and power spectral density curve
Generating gold sequence by m-sequence module two
Calculating the cross correlation function of gold seque
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1.被动悬挂设计simulink模型
2.对于任意一段路面谱，求出其功率谱密度与频率的分布关系，在标准路面图中画出曲线验证路面
3.积分白噪声法路面构造simulink模型
4.整车平顺性分析simulink模型
5.实际路谱案例，c级路面
6.悬架动载荷功率谱密度图像画图matlab编程(1. Simulink model for passive suspension design 2. For any section of road spectrum, the
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道床加速度时程曲线。功率谱密度函数 图。1/3倍频程Z振级频谱图。道床Z振级VLz（dB）。(Acceleration time history curve of ballast. Power spectral density function. Frequency spectrum of 1 / 3 octave Z vibration level. Ballast Z vibration level vlz (DB).)
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