From 6a4afaf87e618c7ab1b9d1b565ea9eff0b1836b0 Mon Sep 17 00:00:00 2001 From: PinkR1ver <3180102330@zju.edu.cn> Date: Wed, 17 Apr 2024 11:22:20 +0800 Subject: [PATCH] signal processing part folder strucutre change --- ...高频信号大趋势包络提取后的信号关键点提取.md | 2 +- .../PSD_estimation/PSD_estimation.md | 0 .../curve_similarity/curve_similarity.md | 2 +- .../curve_similarity/manhattan_distance.md | 0 .../Pasted image 20240102150350.png | Bin .../Pasted image 20240102155308.png | Bin .../Pasted image 20240103160713.png | Bin .../envelope/hilbert_transform.md | 6 +++--- .../Pasted image 20240108161455.png | Bin .../Pasted image 20240108161800.png | Bin .../{ => algorithm}/filter/chebyshev_filter.md | 4 ++-- .../impulse_generating/gaussian_impulse.md | 0 .../basic_knowledge/FT/fourier_transform.md | 12 ++++++------ .../Pasted image 20230919152200.png | Bin .../Pasted image 20230919152234.png | Bin .../Pasted image 20230919152357.png | Bin .../Pasted image 20230919152720.png | Bin .../Pasted image 20230919153109.png | Bin .../Pasted image 20230919153401.png | Bin .../Screenshot_from_2022-10-18_10-53-17.png | Bin .../attachments/fourier_pairs.pdf | Bin .../basic_knowledge/random_signal_basic.md | 2 +- .../oscilloscope/oscilloscope.md | 2 +- .../signal_processing/signal_processing_MOC.md | 17 +++++++++++------ 24 files changed, 26 insertions(+), 21 deletions(-) rename content/signal_processing/{ => algorithm}/PSD_estimation/PSD_estimation.md (100%) rename content/signal_processing/{ => algorithm}/curve_similarity/curve_similarity.md (69%) rename content/signal_processing/{ => algorithm}/curve_similarity/manhattan_distance.md (100%) rename content/signal_processing/{ => algorithm}/envelope/attachments/Pasted image 20240102150350.png (100%) rename content/signal_processing/{ => algorithm}/envelope/attachments/Pasted image 20240102155308.png (100%) rename content/signal_processing/{ => algorithm}/envelope/attachments/Pasted image 20240103160713.png (100%) rename content/signal_processing/{ => algorithm}/envelope/hilbert_transform.md (93%) rename content/signal_processing/{ => algorithm}/filter/attachments/Pasted image 20240108161455.png (100%) rename content/signal_processing/{ => algorithm}/filter/attachments/Pasted image 20240108161800.png (100%) rename content/signal_processing/{ => algorithm}/filter/chebyshev_filter.md (95%) rename content/signal_processing/{ => algorithm}/impulse_generating/gaussian_impulse.md (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/Pasted image 20230919152200.png (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/Pasted image 20230919152234.png (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/Pasted image 20230919152357.png (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/Pasted image 20230919152720.png (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/Pasted image 20230919153109.png (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/Pasted image 20230919153401.png (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/Screenshot_from_2022-10-18_10-53-17.png (100%) rename content/signal_processing/{ => basic_knowledge}/attachments/fourier_pairs.pdf (100%) diff --git a/content/research_career/UWB_about/report/基于高频信号大趋势包络提取后的信号关键点提取.md b/content/research_career/UWB_about/report/基于高频信号大趋势包络提取后的信号关键点提取.md index ffd9a54fc..2da8d3544 100644 --- a/content/research_career/UWB_about/report/基于高频信号大趋势包络提取后的信号关键点提取.md +++ b/content/research_career/UWB_about/report/基于高频信号大趋势包络提取后的信号关键点提取.md @@ -20,7 +20,7 @@ $$ H(\mu)(t) = \frac{1}{\pi} \text{p.v.} \int_{\infty}^{\infty} \frac{\mu(t)}{t-\tau}d\tau $$ -![](signal_processing/envelope/attachments/Pasted%20image%2020240102150350.png) +![](signal_processing/algorithm/envelope/attachments/Pasted%20image%2020240102150350.png) ```MATLAB analytical = hilbert(signal) diff --git a/content/signal_processing/PSD_estimation/PSD_estimation.md b/content/signal_processing/algorithm/PSD_estimation/PSD_estimation.md similarity index 100% rename from content/signal_processing/PSD_estimation/PSD_estimation.md rename to content/signal_processing/algorithm/PSD_estimation/PSD_estimation.md diff --git a/content/signal_processing/curve_similarity/curve_similarity.md b/content/signal_processing/algorithm/curve_similarity/curve_similarity.md similarity index 69% rename from content/signal_processing/curve_similarity/curve_similarity.md rename to content/signal_processing/algorithm/curve_similarity/curve_similarity.md index c87c274c3..c7160ec51 100644 --- a/content/signal_processing/curve_similarity/curve_similarity.md +++ b/content/signal_processing/algorithm/curve_similarity/curve_similarity.md @@ -10,4 +10,4 @@ date: 2024-03-18 # Method * [DTW(Dynamic Time Warping)](computer_sci/deep_learning_and_machine_learning/Trick/DTW.md) -* [Manhattan Distance](signal_processing/curve_similarity/manhattan_distance.md) \ No newline at end of file +* [Manhattan Distance](signal_processing/algorithm/curve_similarity/manhattan_distance.md) \ No newline at end of file diff --git a/content/signal_processing/curve_similarity/manhattan_distance.md b/content/signal_processing/algorithm/curve_similarity/manhattan_distance.md similarity index 100% rename from content/signal_processing/curve_similarity/manhattan_distance.md rename to content/signal_processing/algorithm/curve_similarity/manhattan_distance.md diff --git a/content/signal_processing/envelope/attachments/Pasted image 20240102150350.png b/content/signal_processing/algorithm/envelope/attachments/Pasted image 20240102150350.png similarity index 100% rename from content/signal_processing/envelope/attachments/Pasted image 20240102150350.png rename to content/signal_processing/algorithm/envelope/attachments/Pasted image 20240102150350.png diff --git a/content/signal_processing/envelope/attachments/Pasted image 20240102155308.png b/content/signal_processing/algorithm/envelope/attachments/Pasted image 20240102155308.png similarity index 100% rename from content/signal_processing/envelope/attachments/Pasted image 20240102155308.png rename to content/signal_processing/algorithm/envelope/attachments/Pasted image 20240102155308.png diff --git a/content/signal_processing/envelope/attachments/Pasted image 20240103160713.png b/content/signal_processing/algorithm/envelope/attachments/Pasted image 20240103160713.png similarity index 100% rename from content/signal_processing/envelope/attachments/Pasted image 20240103160713.png rename to content/signal_processing/algorithm/envelope/attachments/Pasted image 20240103160713.png diff --git a/content/signal_processing/envelope/hilbert_transform.md b/content/signal_processing/algorithm/envelope/hilbert_transform.md similarity index 93% rename from content/signal_processing/envelope/hilbert_transform.md rename to content/signal_processing/algorithm/envelope/hilbert_transform.md index 25d788bd7..d0bfeaa58 100644 --- a/content/signal_processing/envelope/hilbert_transform.md +++ b/content/signal_processing/algorithm/envelope/hilbert_transform.md @@ -9,7 +9,7 @@ date: 2024-01-12 # Introduction -![](signal_processing/envelope/attachments/Pasted%20image%2020240103160713.png) +![](signal_processing/algorithm/envelope/attachments/Pasted%20image%2020240103160713.png) # Envelope Explanation ## Envelope and Fine Structure @@ -36,7 +36,7 @@ date: 2024-01-12 早期关于包络和瞬时相位的研究都是基于笛卡尔坐标系x-y -![](signal_processing/envelope/attachments/Pasted%20image%2020240102155308.png) +![](signal_processing/algorithm/envelope/attachments/Pasted%20image%2020240102155308.png) 有关系： $$ @@ -73,7 +73,7 @@ $$ H(\mu)(t) = \frac{1}{\pi} \text{p.v.} \int_{\infty}^{\infty} \frac{\mu(t)}{t-\tau}d\tau $$ -![](signal_processing/envelope/attachments/Pasted%20image%2020240102150350.png) +![](signal_processing/algorithm/envelope/attachments/Pasted%20image%2020240102150350.png) The Hilbert transform is given by the [Cauchy principal value](math/real_analysis/cauchy_principal_value.md) of the convolution with the function $1/(\pi t)$. diff --git a/content/signal_processing/filter/attachments/Pasted image 20240108161455.png b/content/signal_processing/algorithm/filter/attachments/Pasted image 20240108161455.png similarity index 100% rename from content/signal_processing/filter/attachments/Pasted image 20240108161455.png rename to content/signal_processing/algorithm/filter/attachments/Pasted image 20240108161455.png diff --git a/content/signal_processing/filter/attachments/Pasted image 20240108161800.png b/content/signal_processing/algorithm/filter/attachments/Pasted image 20240108161800.png similarity index 100% rename from content/signal_processing/filter/attachments/Pasted image 20240108161800.png rename to content/signal_processing/algorithm/filter/attachments/Pasted image 20240108161800.png diff --git a/content/signal_processing/filter/chebyshev_filter.md b/content/signal_processing/algorithm/filter/chebyshev_filter.md similarity index 95% rename from content/signal_processing/filter/chebyshev_filter.md rename to content/signal_processing/algorithm/filter/chebyshev_filter.md index 16c655a02..188352f7f 100644 --- a/content/signal_processing/filter/chebyshev_filter.md +++ b/content/signal_processing/algorithm/filter/chebyshev_filter.md @@ -54,7 +54,7 @@ T_{n+1}(x) & = 2xT_n(x)-T_{n-1}(x) \end{split} \end{equation} $$ -![](signal_processing/filter/attachments/Pasted%20image%2020240108161455.png) +![](signal_processing/algorithm/filter/attachments/Pasted%20image%2020240108161455.png) #### 第二类切比雪夫多项式 $$ @@ -67,7 +67,7 @@ U_{n+1}(x) & = 2xU_n(x) - U_{n-1}(x) \end{equation} $$ -![](signal_processing/filter/attachments/Pasted%20image%2020240108161800.png) +![](signal_processing/algorithm/filter/attachments/Pasted%20image%2020240108161800.png) ### 正交性 diff --git a/content/signal_processing/impulse_generating/gaussian_impulse.md b/content/signal_processing/algorithm/impulse_generating/gaussian_impulse.md similarity index 100% rename from content/signal_processing/impulse_generating/gaussian_impulse.md rename to content/signal_processing/algorithm/impulse_generating/gaussian_impulse.md diff --git a/content/signal_processing/basic_knowledge/FT/fourier_transform.md b/content/signal_processing/basic_knowledge/FT/fourier_transform.md index 2a1ad622c..d5c080afe 100644 --- a/content/signal_processing/basic_knowledge/FT/fourier_transform.md +++ b/content/signal_processing/basic_knowledge/FT/fourier_transform.md @@ -7,13 +7,13 @@ date: 2023-11-30 --- # Almost Fourier Transform -![](signal_processing/attachments/Pasted%20image%2020230919152200.png) +![](signal_processing/basic_knowledge/attachments/Pasted%20image%2020230919152200.png) It is important to see there are 2 different frequencies here: 1. The frequency of the original signal 2. The frequency with which the **little rotating vector winds around the circle** -![](signal_processing/attachments/Pasted%20image%2020230919152234.png) +![](signal_processing/basic_knowledge/attachments/Pasted%20image%2020230919152234.png) Different patterns appear as we wind up this graph, but it is clear that the x-coordinate for the center of mass is important when the winding frequency is 3; The same number as the original signal @@ -28,7 +28,7 @@ $$ 因为在Fourier transform中，convention way是顺时针旋转，所以使用$e^{-2\pi ift}$，那如何衡量center of mass呢，如下图： -![](signal_processing/attachments/Pasted%20image%2020230919152357.png) +![](signal_processing/basic_knowledge/attachments/Pasted%20image%2020230919152357.png) $$ @@ -43,7 +43,7 @@ $$ 这个就是Almost Fourier Transform, 但是实际情况上，Fourier transform倾向于得到scaled center mass，越长的time，旋转越多圈，其Fourier transform也会成倍放大 -![](signal_processing/attachments/Pasted%20image%2020230919152720.png) +![](signal_processing/basic_knowledge/attachments/Pasted%20image%2020230919152720.png) # Fourier Transform (FT) @@ -118,7 +118,7 @@ $$ ## 复数形式推导 -![](signal_processing/attachments/Pasted%20image%2020230919153109.png) +![](signal_processing/basic_knowledge/attachments/Pasted%20image%2020230919153109.png) ## 三角函数推导 @@ -184,7 +184,7 @@ $$ **For $X[k]$, it means a $\cos$ wine like this:** -![](signal_processing/attachments/Pasted%20image%2020230919153401.png) +![](signal_processing/basic_knowledge/attachments/Pasted%20image%2020230919153401.png) # Fast Fourier transform(FFT) diff --git a/content/signal_processing/attachments/Pasted image 20230919152200.png b/content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152200.png similarity index 100% rename from content/signal_processing/attachments/Pasted image 20230919152200.png rename to content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152200.png diff --git a/content/signal_processing/attachments/Pasted image 20230919152234.png b/content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152234.png similarity index 100% rename from content/signal_processing/attachments/Pasted image 20230919152234.png rename to content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152234.png diff --git a/content/signal_processing/attachments/Pasted image 20230919152357.png b/content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152357.png similarity index 100% rename from content/signal_processing/attachments/Pasted image 20230919152357.png rename to content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152357.png diff --git a/content/signal_processing/attachments/Pasted image 20230919152720.png b/content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152720.png similarity index 100% rename from content/signal_processing/attachments/Pasted image 20230919152720.png rename to content/signal_processing/basic_knowledge/attachments/Pasted image 20230919152720.png diff --git a/content/signal_processing/attachments/Pasted image 20230919153109.png b/content/signal_processing/basic_knowledge/attachments/Pasted image 20230919153109.png similarity index 100% rename from content/signal_processing/attachments/Pasted image 20230919153109.png rename to content/signal_processing/basic_knowledge/attachments/Pasted image 20230919153109.png diff --git a/content/signal_processing/attachments/Pasted image 20230919153401.png b/content/signal_processing/basic_knowledge/attachments/Pasted image 20230919153401.png similarity index 100% rename from content/signal_processing/attachments/Pasted image 20230919153401.png rename to content/signal_processing/basic_knowledge/attachments/Pasted image 20230919153401.png diff --git a/content/signal_processing/attachments/Screenshot_from_2022-10-18_10-53-17.png b/content/signal_processing/basic_knowledge/attachments/Screenshot_from_2022-10-18_10-53-17.png similarity index 100% rename from content/signal_processing/attachments/Screenshot_from_2022-10-18_10-53-17.png rename to content/signal_processing/basic_knowledge/attachments/Screenshot_from_2022-10-18_10-53-17.png diff --git a/content/signal_processing/attachments/fourier_pairs.pdf b/content/signal_processing/basic_knowledge/attachments/fourier_pairs.pdf similarity index 100% rename from content/signal_processing/attachments/fourier_pairs.pdf rename to content/signal_processing/basic_knowledge/attachments/fourier_pairs.pdf diff --git a/content/signal_processing/basic_knowledge/random_signal_basic.md b/content/signal_processing/basic_knowledge/random_signal_basic.md index 502218b42..5a0064726 100644 --- a/content/signal_processing/basic_knowledge/random_signal_basic.md +++ b/content/signal_processing/basic_knowledge/random_signal_basic.md @@ -70,7 +70,7 @@ $$ 对于拥有Ergodicity的信号，可以用时间平均代替集合平均，即 -![](signal_processing/attachments/Screenshot_from_2022-10-18_10-53-17.png) +![](signal_processing/basic_knowledge/attachments/Screenshot_from_2022-10-18_10-53-17.png) $$ diff --git a/content/signal_processing/device_and_components/oscilloscope/oscilloscope.md b/content/signal_processing/device_and_components/oscilloscope/oscilloscope.md index c9362551e..f66f0d5d2 100644 --- a/content/signal_processing/device_and_components/oscilloscope/oscilloscope.md +++ b/content/signal_processing/device_and_components/oscilloscope/oscilloscope.md @@ -3,7 +3,7 @@ title: Oscilloscope basic knowledge tags: - signal-processing - devices -date: 2024-11-04 +date: 2024-04-11 --- # Classification diff --git a/content/signal_processing/signal_processing_MOC.md b/content/signal_processing/signal_processing_MOC.md index 839a88d4f..e291047dd 100644 --- a/content/signal_processing/signal_processing_MOC.md +++ b/content/signal_processing/signal_processing_MOC.md @@ -9,7 +9,7 @@ date: 2024-03-18 * [Random Signal Basic](signal_processing/basic_knowledge/random_signal_basic.md) * [Fourier Transform](signal_processing/basic_knowledge/FT/fourier_transform.md) -* [Power spectral density estimation](signal_processing/PSD_estimation/PSD_estimation.md) +* [Power spectral density estimation](signal_processing/algorithm/PSD_estimation/PSD_estimation.md) * [FBW - Fractional Band Width](signal_processing/basic_knowledge/concept/FBW.md) ## Fourier Transform @@ -27,25 +27,30 @@ date: 2024-03-18 ## Envelope -* [Hilbert Transform - Envelope](signal_processing/envelope/hilbert_transform.md) +* [Hilbert Transform - Envelope](signal_processing/algorithm/envelope/hilbert_transform.md) ## Curve similarity -* [Curve Similarity - MOC](signal_processing/curve_similarity/curve_similarity.md) +* [Curve Similarity - MOC](signal_processing/algorithm/curve_similarity/curve_similarity.md) ## Filter -* [Chebyshev Filter](signal_processing/filter/chebyshev_filter.md) +* [Chebyshev Filter](signal_processing/algorithm/filter/chebyshev_filter.md) ## Generating Impulse -* [Gaussian Impulse Generating](signal_processing/impulse_generating/gaussian_impulse.md) - +* [Gaussian Impulse Generating](signal_processing/algorithm/impulse_generating/gaussian_impulse.md) ## Autocorrelation * [Autocorrelation in Signal Processing](signal_processing/advanced_statistic/autocorrelation/autocorrelation.md) * [Period Detection by Autocorrelation](signal_processing/advanced_statistic/autocorrelation/period_detection.md) + + +## Empirical Mode Decomposition + + + # Software ## CST MWS