Abstract: Virtual lens imaging technology is a new imaging technology that can take into account different distances. But this technology is developed from passive imaging system. It is suitable for passive imaging, semi-active imaging and conventional phased array imaging. In active holographic imaging system and synthetic aperture imaging system, the antenna units work and receive signals in sequence. Therefore virtual lens imaging technology cannot be used directly because target echo signal has different propagation path and phase delay characteristics. By extending virtual lens imaging technology and using a parameter of array characteristics, a unified architecture of multi-system compatible fast imaging algorithm is established based on the analysis of active holographic imaging system and synthetic aperture imaging system. The parameter of array characteristics is associated with signal propagation path and phase delay. And then phase weighting algorithm is optimized. The new proposed algorithm has a wider range of application and the phase weighting algorithm is simple and easy for implement. Finally, imaging verification is carried out. Experimental and simulation results verify the effectiveness of the new algorithm.