If this code is helpful for you, please cite the following paper: BibTex Format:

@article{zhao2020spectral,
  title={A spectral--spatial anomaly target detection method based on fractional Fourier transform and saliency weighted collaborative representation for hyperspectral images},
  author={Zhao, Chunhui and Li, Chuang and Feng, Shou and Su, Nan and Li, Wei},
  journal={IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing},
  volume={13},
  pages={5982--5997},
  year={2020},
  publisher={IEEE}
}