Jingbiao's Blog

「Hinc lucem et pocula sacra」

Json with python

Read Json files in python Json files with no spaces or newlines Inputting json file into python with json.loads(_), Store a dictionary of a dictionary 1 2 3 # Store the json...

Posted by Jingbiao on July 14, 2021, 1 minute to read

Paddlepaddle installation issues and fixation

Issues Conda do not have the correct version for installing paddlepaddle gpu. In order to get the correct version you need to use pip. While using pip, cudnn is not installed, and environmental var...

Posted by Jingbiao on July 14, 2021, 1 minute to read

OFDM Audio Modem project

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \) Introduction An OFDM audio modem that uses speaker as transmitter and microphone as receiver is developed. Communicat...

Posted by Jingbiao on May 15, 2021, 9 minutes to read

OFDM with audio modem

List of useful Transforms Pointwise product of two function in continuous time domain → Linear convolution in frequency domain Pointwise product of two functions in the continuous...

Posted by Jingbiao on May 15, 2021, Less than 1 minute to read

Channel estimation with OFDM random symbol

Estimation, Synchronization, and Tips

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \) Channel estimation 1.Generate an n-length sequences of psuedo-random constellation values By means of psued...

Posted by Jingbiao on May 15, 2021, 9 minutes to read

Peterhouse Garden

Some pictures of the Peterhouse Garden in 2021 spring

Posted by Jingbiao on May 10, 2021, Less than 1 minute to read

3M1 Mathematical Methods Tripos Revision

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \newcommand{\norm}[1]{\lVert #1 \rVert} \) Linear Algebra Hermitian Conjugate Transpose: \( M^H = \overline{M...

Posted by Jingbiao on April 10, 2021, 1 minute to read

3F8 Inference Tripos Revision

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \) Algorithms MLE Maximum Likelihood Estimation of parameters: Given data $ y=\{ y_i \}$ and parameter $\theta$, t...

Posted by Jingbiao on April 10, 2021, 3 minutes to read

3F7 Information theory Tripos Revision

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \) Full notes can be viewed over here: rendered version and LaTex Source Code Entropy Calculation of entropy, joint...

Posted by Jingbiao on April 10, 2021, 3 minutes to read

3F4 Data Transmission Tripos Revision

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \) Finding Orthonormal Basis and optimal detection Finding the orthonormal basis for a group of waveform Represent...

Posted by Jingbiao on April 10, 2021, 4 minutes to read