Halogen tungsten lamp source and imaging spectrometer onboard calibration method

The invention discloses a halogen tungsten lamp source and an imaging spectrometer onboard calibration method. The halogen tungsten lamp source comprises an integrating sphere light source, a collimation system, a reflecting mirror, a diffuse reflection pate and a power control device. The integrating sphere light source comprises an integrating sphere and a halogen tungsten lamp arranged in the integrating sphere and is used for transmitting detection light, and the inner surface of the integrating sphere is provided with a diffuse reflection coating; the collimation system is used for collimating the detection light to obtain collimated detection light; the reflecting mirror is used for totally reflecting the collimated detection light to make the collimated detection light vertically enter the diffuse reflection plate to obtain illumination light exiting from the diffuse reflection plate; the power control device is used for controlling the radiance in the integrating sphere light source to be a fixed value. Compared with sunlight, the halogen tungsten lamp source has the advantage of being smooth in spectral curve, the difficulty of obtaining the spectral curve of the halogen tungsten lamp source through calculation with multiple spectral radiance values is lowered, and thus the difficulty of the imaging spectrometer onboard calibration method using the halogen tungsten lamp source is lowered.