【摘要】 研究玫瑰扫描系统的探测器最小允许瞬时视场的估算方法 .阐述了估算瞬时视场值的常规计算公式 ,推导了以玫瑰花瓣相邻两瓣最大距离作为瞬时视场估算值的计算方法 ,并对两种方法进行了对比 .结果表明 ,常规计算方法对最小允许瞬时视场有较大的超估量 ,新方法可较精确地计算出此值更多还原

【Abstract】 The methods of estimating the minimum allowed value of IFOV (instantaneous field of view) of the detector in a rosette scan system are investigated. The common method for the estimation of IFOV is described. A new method which uses the maximum distance between two neighboring petals as the estimated value of IFOV is developed and a comparison between the common method and the new method is given. It is concluded that the minimum allowed value of IFOV of rosette scanning is over estimated by the common method while this value can be calculated accurately with the new method.更多还原