The combination of these SAR images was used to improve the range resolution in final image product.

For the range resolution,an approximate formula is put forward and the range resolution limit of SAR imaging is formulated also.

Seismic migration is a main tool to improve horizontal resolution of the deep seismic reflection data.

The vocanic reservoir in Fenghuadian Area is taken for example to analyze the analysisesfactors affected vertical resolution and horizontal resolution, advance improving methods and probeinto the reason of weak reflection amplitude formed.

The transverse resolution of two zone leaky annular pupil filter increases with the central transmissivity decreasing,and in common cases axial resol.

In the light of the pulse width of the radar wave, this paper deals with the difference and the relationship between the vertical resolution and the transverse resolution of the ground-penetrating radar, indicates the influence of the noise upon the resolution and, with practical examples, points out that the digital handling of the signal can greatly improve the resolution of the radar.

In order to investigate the key technologies in WFOCT and to obtain higher transverse resolution,the system transverse resolution in WFOCT has been studied and discussed based on the principle of wide-field optical coherence tomography system.