Study of Hadamard Transform Imaging Spectrometry

The principle of Hadamard Transform Imaging Spectrometer (HTIS) is discribed in this paper. The working mode and some design problems of HTIS are discussed. A number of experimental results are attained in the visible band by a self-made HTIS experimental set-up controlled by a microprocessor. Using the symmetric Transform and Fast Delta Hadamard Transform, the method of data processing is improved.