卫星平台振动导致色散型成像光谱仪在曝光过程中与地物产生相对运动， 从而严重地影响了光谱数据质量。 本文以PHI为色散型光谱仪模型， 研究计算了俯仰角、 侧滚角、 偏航角以及三角综合按照卫星振动信号和不同振幅的谐波振动对光谱数据的空间图像和光谱的影响程度， 并且仿真出了各种振动下的畸变光谱数据立方体， 得到卫星平台振动造成光谱数据畸变的一般规律。 结果表明， 色散型光谱仪对卫星振动振幅要求较高， 微小的振幅对光谱的影响也非常大， 必须对光谱数据进行校正和对卫星平台进行减振， 才能保证地物光谱的真实性。

Satellite platform vibrations make dispersive imaging spectrometer and objects generate relative movement in exposure time, which seriously affects the quality of spectral data. PHI was made as the model of dispersive spectrometer, the impact of pitch, roll, yaw and three-axis vibrations on spectral data were studied chiefly, and distorted spectral data cubes under various vibrations were simulated, then the general law of distortion spectral cube caused by satellite platform vibration was gained. The results show that the dispersive imaging spectrometer has high requirements for reduction of vibration amplitude, A small amplitude also can generate great influence on spectrum. The spectral data must be corrected and the vibration of satellite platform must be reduced to ensure the authenticity of spectrum.