Shortwave infrared hyperspectral imaging technology has been widely used in various fields. Background radiation has a significant effect on the image quality and Signal to Noise Ratio(SNR).Based on the programmable shortwave infrared detector

we proposed two methods of background reference line and differential gain. The methods can be real-time monitoring of background radiation and improving the SNR of the weak signal. Experimental verification shows that the image quality and SNR of SWIR hyperspectral imaging system are better than the other systems without these methods. By using of programmable feature

frame rate of the systemis improved. High frame rate detector is necessary to high resolution hyper spectral imager.