scalar system
2.Recent activities for the airborne scalar gravimetry are summarized in this paper, they includes five aspects, viz. improvement of traditional airborne scalar gravity systems, development of new system concepts, optimization of acceleration deriving from DGPS, optimization of filtering and estimation methods, and the application of airborne gravity data in various mapping and exploration applications.
3.third, by means of scalar diffraction theory or Collins formula, after dividing an optics system into some serial subsystems along the diffraction-limited interface(s) and dispersing the overall field into tiny elements across the mirror, the finite-sum matrix equation is derived by introducing self-reproducing principle;
6.In this paper, on basis of the theory of scalar diffraction, Collins equation is used to numerically calculate laser intensity distribution after Gaussian laser beam passes beam expanding telescope system with small aperture. Though the beam divergence angle can be reduce, the results show that output light distribution is not Gaussian beam, however with many bright and dark diffraction rings.
8.Imitated the optical system of Rowland circle structure, the Rowland sphere structure is built in this paper, the Rayleigh-Sommerfeld diffraction scalar integral formula of electromagnetic wave is simplified on the Rowland sphere structure, the computational formulas of spatial frequency spectrum and diffractional far field distribution from the weakly guiding optical fiber LP mode are derived.
