叙述了阿达玛变换光谱成像仪的原理及仪器构成，对阿达玛编码模板引起的光谱混叠现象进行了分析研究。
The principle and instrument structure of Hadamard transform spectral imager is described, and spectra aliasing caused by Hadamard encoding mask is investigated.
编码模板是阿达玛变换成像光谱仪的关键部件，用以代替入射狭缝和出射狭缝。
Encoding template is a key component of Hadamard transform imaging spectrometer. It is used to substitute the incident slit and exit slit.
实验结果表明，将阿达玛变换应用于激光光谱测量，在不增加测量次数的情况下，可以有效地提高系统的信噪比。
The experimental result indicates that Hadamard transform is applied in spectral measurement, and the SNR can be improved effectively when the measurement times are not increased.
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