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A package for recovering weak signals from noise in distributed acoustic sensing

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# sigrecover
SigRecover: Recovering signal from noise in distributed acoustic sensing data processing

## Reference
If you find this package useful, please do not forget to cite the following paper.

Chen, Y., 2023. SigRecover: Recovering signal from noise in distributed acoustic sensing data processing, Seismological Research Letters, 95(3), 1976–1985.
    
BibTeX:
	
	@article{sigrecover,
	  author={Yangkang Chen},
	  title = {SigRecover: Recovering signal from noise in distributed acoustic sensing data processing},
	  journal={Seismological Research Letters},
	  year=2024,
	  volume=95,
	  issue=3,
	  number=3,
	  pages={1976–1985},
	  doi={10.1785/0220230370},
	}

-----------
## Copyright
    Authors of the sigrecover paper, 2021-present

-----------

## Install
Using the latest version

git clone https://github.com/chenyk1990/sigrecover
    cd sigrecover
    addpath(genpath('./')); #in Matlab command line
    
-----------
## Examples
    The "main" directory contains all runable scripts test_figNO.m to reproduce all figures in the paper.
  
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## Development
    The development team welcomes voluntary contributions from any open-source enthusiast. 
    If you want to make contribution to this project, feel free to contact the development team.

-----------
## Contact
    Regarding any questions, bugs, developments, collaborations, please contact  
    Yangkang Chen
    chenyk2016@gmail.com

-----------
## NOTES:

1. The scripts beginning with "test_" are runnable scripts.

2. The directory [subroutines](https://github.com/chenyk1990/sigrecover/tree/main/subroutines) stores all the required subroutines.

3. The current version is based on Matlab. Future versions may also support Python and be optimized regarding computational efficiency.

4. All figures (except for fig1, which is a schematic plot) in the sigrecover paper are in the following directory for a quick look (https://github.com/chenyk1990/gallery/tree/main/sigrecover).

5. The label fonts are different across different Matlab versions and platforms (Linux, Max). The figures presented in the paper are from Mac-Pro Matlab 2022b.

-----------
## Gallery
The gallery figures of the sigrecover package can be found at
    https://github.com/chenyk1990/gallery/tree/main/sigrecover
Each figure in the gallery directory corresponds to a test_figNO.m script in the "main" directory with the exactly the same file name (figNO.png).

These gallery figures are also presented below.

The following figure is generated by [test_jdas.m](https://github.com/chenyk1990/sigrecover/tree/main/test_jdas.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/jdas.png' alt='Slicing' width=960/>

The following atoms are generated by [test_jdas.m](https://github.com/chenyk1990/sigrecover/tree/main/test_jdas.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/jdas_atoms2.png' alt='Slicing' width=960/>

The following figure is generated by [test_forge.m](https://github.com/chenyk1990/sigrecover/tree/main/test_forge.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/forge.png' alt='Slicing' width=960/>

The following atoms are generated by [test_forge.m](https://github.com/chenyk1990/sigrecover/tree/main/test_forge.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/forge_atoms2.png' alt='Slicing' width=960/>

The following figure is generated by [test_wang.m](https://github.com/chenyk1990/sigrecover/tree/main/test_wang.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/wang.png' alt='Slicing' width=960/>

The following atoms are generated by [test_wang.m](https://github.com/chenyk1990/sigrecover/tree/main/test_wang.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/wang_atoms2.png' alt='Slicing' width=960/>

The following FK-spectra comparison is generated by [test_fkcomp.m](https://github.com/chenyk1990/sigrecover/tree/main/test_fkcomp.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/wang_fk_new.png' alt='Slicing' width=960/>

The following single-trace amplitude comparison is generated by [test_singletrace.m](https://github.com/chenyk1990/sigrecover/tree/main/test_singletrace.m)
<img src='https://github.com/chenyk1990/gallery/blob/main/sigrecover/wang_trace.png' alt='Slicing' width=960/>

sigrecover

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