This is related to certain physical limitations of the image sensors , such as finite cell area and finite aperture time 這一點與圖像傳感器(如:有限柵格區(qū)和有限過孔時間)的一定的物理限制條件有關。
Chapter 3 : in this chapter , the propagation characteristic and focusing properties of elegant hermite - cosh - gaussian ( ehchg ) beam through a finite aperture are investigated . the variance of the beam width , the generalized analytical expression of mg2 - factor and the power fraction of the truncated beam are derived theoretically and illustrated numerically 第三章:討論了eleganthermite - cosh - gaussian ( ehchc )光束通過有限孔徑的傳播特性和聚焦性質(zhì),得到了其光束束寬, m ~ 2因子及能量分數(shù)的解析表達式,并分析了影響光束參數(shù)的因素及其變化規(guī)律。