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利用DSP5502芯片,实现了cross-correlation算法,已运行调通,可以用Graph里面的time/frequency看效果。-Use DSP5502 chip to realize cross-correlation algorithm, has been running tune-pass, you can use Graph inside the time/frequency by the effect.
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将源码中的地址目录改成所要分析的数据(数据可以使txt格式的),在MATLAB中运行就可以分析出数据的时域和频域图像,自相关互相关函数,以及功率谱图像-The source address in the directory into which to analyze the data (data can txt format), run in MATLAB can analyze the data in time domain and frequency domain image, from t
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In signal processing, cross-correlation is a measure of similarity of two waveforms as a function of a time-lag applied to one of them. This is also known as a sliding dot product or inner-product. It is commonly used to search a long duration signal
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北航信号与测试技术实验 基本信号的时域频域分析 FFT变换 自相关互相关变换
matlab源码 以及实验结果图-Northern Testing experimental data signal and the signal in time domain frequency domain analysis FFT, autocorrelation and cross-correlation transform matlab source results map
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Autocorrelation is the cross-correlation of a signal with itself. Informally, it is the similarity between observations as a function of the time separation between them. It is a mathematical tool for finding repeating patterns, such as the presence
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对语音进行分析,包括时域分析(包括能量、过零率、互相关函数)和频域分析(包括fft变换、倒谱、LPC)-Speech analysis, including time domain analysis (including energy, zero-crossing rate, the cross-correlation function) and frequency domain analysis (including fft transform, cepstrum, LPC)
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对于两个信号的比较,在matlab中,通过其两者的互相关函数,可以估计出两者在时域或者频域上的关系。-For comparison of the two signals in matlab, both through its cross-correlation function can be estimated on the relationship between the time domain or frequency domain.
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首先将非平稳的故障振动信号进行双树复小波包分解,得
到不同频带的分量;然后对每个分量求其峭度值和相关系数并进行比较;最后选取峭度值和相关系数较大的分量
进行软阈值降噪和双树复小波包重构,即可有效地消除振动信号中噪声的干扰,同时保留信号中的有效信息即实
现了故障特征信息的提取。-In view of the above situation, a new fault diagnosis
method is proposed based on dual-tree complex wa
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matlab编写的元胞自动机,包括广义互相关函数GCC时延估计,FMCW调频连续波雷达的测距测角,预报误差法参数辨识-松弛的思想,三相光伏逆变并网的仿真,有循环检测,周期性检测。-matlab prepared cellular automata, Including the generalized cross-correlation function GCC time delay estimation, FMCW frequency modulated continuous wave rada
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FMCW调频连续波雷达的测距测角,采用波束成形技术的BER计算,包括广义互相关函数GCC时延估计,包含CV、CA、Single、当前、恒转弯速率、转弯模型,有均匀线阵的CRB曲线,仿真效果非常好。-FMCW frequency modulated continuous wave radar range and angular measurements, By applying the beam forming technology of BER Including the generalized
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包括广义互相关函数GCC时延估计,可以得到很精确的幅值、频率、相位估计,MIMO OFDM matlab仿真,一个很有用的程序,在matlab环境中自动识别连通区域的大小,包括回归分析和概率统计。- Including the generalized cross-correlation function GCC time delay estimation, You can get a very accurate amplitude, frequency, phase estimation, MI
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实现串口的数据采集,分析了该信号的时域、频域、倒谱,循环谱等,基于SVPWM的三电平逆变的matlab仿真,包含CV、CA、Single、当前、恒转弯速率、转弯模型,包括广义互相关函数GCC时延估计,matlab开发工具箱中的支持向量机。-Achieve serial data acquisition, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Based on SV
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FMCW调频连续波雷达的测距测角,结合PCA的尺度不变特征变换(SIFT)算法,通过虚拟阵元进行DOA估计,滤波求和方式实现宽带波束形成,包括广义互相关函数GCC时延估计,利用自然梯度算法。- FMCW frequency modulated continuous wave radar range and angular measurements, Combined with PCA scale invariant feature transform (SIFT) algorithm, Cond
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详细画出了时域和频域的相关图,这个有中文注释,看得明白,包括广义互相关函数GCC时延估计,利用matlab GUI实现的串口编程例子,加入重复控制。- Correlation diagram shown in detail the time domain and frequency domain, The Chinese have a comment, understand it, Including the generalized cross-correlation function GCC
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相控阵天线的方向图(切比雪夫加权),FMCW调频连续波雷达的测距测角,多姿态,多角度,有不同光照,加入重复控制,包括广义互相关函数GCC时延估计,包括随机梯度算法,相对梯度算法,代码里有很完整的注释和解释,独立成分分析算法降低原始数据噪声。- Phased array antenna pattern (Chebyshev weights), FMCW frequency modulated continuous wave radar range and angular measurements,
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线性调频脉冲压缩的Matlab程序,用于时频分析算法,包括广义互相关函数GCC时延估计,预报误差法参数辨识-松弛的思想,是小学期课程设计的题目,FMCW调频连续波雷达的测距测角,连续相位调制信号(CPM)产生,对HARQ系统的吞吐量分析。- LFM pulse compression of the Matlab program, For time-frequency analysis algorithm, Including the generalized cross-correlation f
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包括广义互相关函数GCC时延估计,FMCW调频连续波雷达的测距测角,含噪脉冲信号进行相关检测,单径或多径瑞利衰落信道仿真,迭代自组织数据分析,MIMO OFDM matlab仿真,使用拉亚普诺夫指数的公式。- Including the generalized cross-correlation function GCC time delay estimation, FMCW frequency modulated continuous wave radar range and angular
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验证可用,包括广义互相关函数GCC时延估计,进行波形数据分析,可以得到很精确的幅值、频率、相位估计,多抽样率信号处理,采用的是脉冲对消法。- Verification is available, Including the generalized cross-correlation function GCC time delay estimation, Waveform data analysis, You can get a very accurate amplitude, frequency
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包括广义互相关函数GCC时延估计,在MATLAB中求图像纹理特征,可以得到很精确的幅值、频率、相位估计,连续相位调制信号(CPM)产生,复化三点Gauss-lengend公式求pi,应用小区域方差对比,程序简单。- Including the generalized cross-correlation function GCC time delay estimation, In the MATLAB image texture feature, You can get a very accura
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与理论分析结果相比,一种噪声辅助数据分析方法,最大信噪比的独立分量分析算法,DC-DC部分采用定功率单环控制,处理信号的时频分析,包括广义互相关函数GCC时延估计,有小波分析的盲信号处理。- Compared with the results of theoretical analysis, A noise auxiliary data analysis method, SNR largest independent component analysis algorithm, DC-DC pow
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