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content/computer_sci/code_frame_learn/MOC.md

@@ -8,4 +8,4 @@ date: 2023-12-03
 
 # Web Framework
 
-* [Flask](computer_sci/code_frame_learn/flask/MOC.md)
+* [Flask](computer_sci/code_frame_learn/web/flask/MOC.md)

content/computer_sci/code_frame_learn/flask/MOC.md

@@ -1,6 +0,0 @@
----
-title: Flask - MOC
-date: 2023-12-03
----
-* [MSGI Introduction](computer_sci/code_frame_learn/flask/MSGI.md)
-

content/computer_sci/code_frame_learn/web/flask/MOC.md

@@ -0,0 +1,6 @@
+---
+title: Flask - MOC
+date: 2023-12-03
+---
+* [MSGI Introduction](computer_sci/code_frame_learn/web/flask/MSGI.md)
+

content/game/dota2/analyze_platform.md

@@ -0,0 +1,16 @@
+---
+title: Dota2 Analyze Platform
+tags:
+  - game
+  - dota2
+date: 2024-05-13
+---
+# Platform
+
+
+* [Stratz](https://stratz.com/)
+
+
+# Some articles about this platform
+
+* [IMP: Decoding Your Performance](https://medium.com/stratz/imp-decoding-your-performance-c251dcb42b93#id_token=eyJhbGciOiJSUzI1NiIsImtpZCI6ImEzYjc2MmY4NzFjZGIzYmFlMDA0NGM2NDk2MjJmYzEzOTZlZGEzZTMiLCJ0eXAiOiJKV1QifQ.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.IQAOjw_MfhYeGjurgTbsTBni3nhMM40TV_3837VJa2NdfMiz2aiXMpgaOAmgz-kxoJjRvR-Gcu4x72nBbOV7vfLXeN-L8YDMNWjYn7vDNIEeBpD6yuws5bUFNOg7PVTzPAfhIF9Zqmx8_SjOkppkB67tAbQXR04n0wQYNyvwFHo-BZ8xdZDQEMSz0qB_F27Fjmz83C7o57wGMdg-gTwpLVJYA37Z_kdav4prwpufS8Z5k5hj85TgVeq_lXMVrJXHCKiNmoprpeslyAn-MN6xu9Zr-rMqMhOQwXUx7QOhTJZ8XAhH8oImc-_u5nzD_hZZVkl8JDZSb5wYobyg462HWg)

content/signal/hardware/ADC/jitter.md

@@ -0,0 +1,22 @@
+---
+title: Jitter
+tags:
+  - advanced
+  - hardware
+  - basic
+date: 2024-05-15
+---
+# Introduction
+
+![](signal/hardware/attachments/Pasted%20image%2020240515153137.png)
+
+![](signal/hardware/attachments/Pasted%20image%2020240515153224.png)
+
+
+Clock edges have timing uncertainty, typically called jitter, which degrades the noise performance of the ADC. 
+
+
+# Reference
+
+* https://www.youtube.com/watch?v=z_23tV1Ek0E
+* chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.ti.com/content/dam/videos/external-videos/en-us/2/3816841626001/5529003238001.mp4/subassets/TIPL-4704-Jitter-vs-SNR.pdf

content/signal/hardware/oscilloscope/DCA.md

@@ -0,0 +1,37 @@
+---
+title: Digital Sampling Oscilloscope or Digital Communication Analyzer
+tags:
+  - advanced
+  - hardware
+  - devices
+date: 2024-05-14
+---
+# Overview for DCA
+
+
+![](signal/hardware/attachments/Pasted%20image%2020240514162309.png)
+
+这是一个很好的例子，用记录自行车车轮旋转来理解Real-time示波器和采样示波器的区别。
+
+我们想来记录自行车车轮的旋转，以每旋转一度为单位捕捉车轮的全部旋转过程。
+
+方法一是使用帧率非超高的录像机，其速度足以在单次旋转的时间内捕捉 360 幅图像。使用这种方法，您可以在看到车轮转动一次后捕捉到所有独特的角度位置。
+
+方法二是使用一台相机，它一次只能拍一张照片，不过这台相机可以进行编程，使其在发出信号后的特定时间内拍摄图像。因此又能力去编程每转360°后去拍摄一张照片，这样就可以每转一圈拍摄 1°、2°、3°... 的照片。再拍摄360张照片后，可以将它们按顺序排列在一起，制作出整个旋转过程的动画。
+
+
+# Key Differences for DCA
+
+## Viewing Waveforms
+
+![](signal/hardware/attachments/Pasted%20image%2020240514164651.png)
+*A real-time oscilloscope uses an internal sample clock and stores the data sampled before and after the trigger signal.*
+
+对于Real-Time示波器，有一个独立于采集信号的内部采样时钟。其采样速度比采集信号更快，根据采样定理可以有效地捕捉到input signal的各种细节，同时可以决定何时开始采集。同时，因为触发可以基于任意标准，如voltage level或者其他什么模式，可以为调试带来更大的灵活性。同时还允许collect pre-trigger samples，为我们了解事件前后的信号行为。
+
+
+
+# Reference
+
+* https://www.keysight.com/blogs/en/tech/bench/2022/05/09/real-time-vs-sampling-oscilloscopes-what-are-the-differences
+* https://www.youtube.com/watch?v=j2vch6wAddc

content/signal/hardware/oscilloscope/triggering.md

@@ -0,0 +1,16 @@
+---
+title: Tigger in DSO
+tags:
+  - advanced
+  - hardware
+  - signal
+date: 2024-05-14
+---
+# Simple to Say
+
+Triggering的目的是为了synchronize input signal和time base signal，通过triggering可以让repetitive waveforms再显示屏上找到固定的位置而不会随机出现。
+
+# Reference
+
+* https://www.youtube.com/watch?v=j2vch6wAddc
+* https://www.youtube.com/watch?v=F_UKMbf9uJw

content/signal/signal_processing/algorithm/EMD/basic.md

@@ -179,4 +179,5 @@ def EMD(signal, max_imf = 10, tolerance = 0.01):
 * [Huang, Norden E., et al. “The Empirical Mode Decomposition and the Hilbert Spectrum for Nonlinear and Non-Stationary Time Series Analysis.” _Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences_, vol. 454, no. 1971, Mar. 1998, pp. 903–95. _DOI.org (Crossref)_, https://doi.org/10.1098/rspa.1998.0193.](https://royalsocietypublishing.org/doi/abs/10.1098/rspa.1998.0193#purchaseArea)
 * https://www.youtube.com/watch?v=K-LhNvr-CSk
 * https://towardsdatascience.com/decomposing-signal-using-empirical-mode-decomposition-algorithm-explanation-for-dummy-93a93304c541⭐
-* https://en.wikipedia.org/wiki/Hilbert_spectrum
+* https://en.wikipedia.org/wiki/Hilbert_spectrum
+* https://www.youtube.com/watch?v=BLUL8i0KzKg