根据阿达玛变换光谱仪的原理与狭缝衍射特性, 分析了光谱仪入射狭缝衍射对阿达玛变换光谱仪测量结果造成影响, 对衍射情况下的阿达玛变换光谱仪的仪器结构矩阵进行了研究, 得出了衍射情况下阿达玛变换光谱仪的编/解码方法, 通过对入射光谱的还原分析, 验证了编码/解码的正确性。 该方法对阿达玛变换光谱仪的高精度光谱测量具有重要意义。

According to the principles of Hadamard transform spectrometer and the slit diffraction characteristics, the influence of spectrometer entrance slit diffraction of Hadamard transform spectrometer on the measurement result was analyzed, for the diffraction case, the Hadamard transform spectrometer instrument structure matrix was studied, and the Hadamard transform spectrometer encoding/decoding method was established. The analysis of incident spectral verified the correctness of the coding/decoding. This method is very important for the high precision measurement of Hadamard transform spectrometer.