The principle and instrument structure of Hadamard transform spectral imager is described, and spectra aliasing caused by Hadamard encoding mask is investigated.
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。
2
Use the necessary instrument Polygonal Lasso Tool to outline the mask contour.
使用多边形套索工具将面膜部分选中。
3
Electron beam lithography machine is the key instrument for mask making and research of nanometer device.