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使用 findpeaks
定位信号的局部最大值,并按高度、宽度或相对高差对峰值进行排序。使用 peak2rms
函数确定信号的波峰因子,并计算常见的描述性统计量,如最大值、最小值、标准差和 RMS 水平。在更大的数据集中搜索关注的信号,并按时间对齐信号。定位信号突然变化或漂移出目标范围的点。对信号添加标签以用于分析或机器和深度学习应用。
Signal Analyzer | Visualize and compare multiple signals and spectra |
Signal Labeler | Label signal attributes, regions, and points of interest |
RMS Value of Periodic Waveforms
Find the root mean square value of a sine wave, a square wave, and a rectangular pulse train.
定位一组数据中的局部最大值,并确定这些峰值是否周期性出现。
The prominence of a peak measures how much the peak stands out due to its intrinsic height and its location relative to other peaks.
Human Activity Recognition Simulink Model for Smartphone Deployment (Statistics and Machine Learning Toolbox)
Generate code from a classification Simulink® model prepared for deployment to a smartphone.