CCSDS 120.0-G-1技术绿皮书，用于空间图像无损压缩,CCSDS 120.0-G-1 technology, the Green Paper, for use in space image lossless compression

用于空间图像无损压缩的算法标准的技术绿皮书-For space image lossless compression algorithm standard technology of the Green Paper

快速无损的傅里叶变换，效率最高的FFT之一，包含一维fft，二维fft（FK变换），以及三维fft（FKK变换）。-One of the most efficient FFT, contains one-dimensional fft transform two-dimensional fft (FK transform), and three-dimensional fft (FKK transform), a rapid non-destructive Fourier transform.