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diving model
相关语句
  俯冲模型
     SAR imaging formation and geometric correction method based on diving model
     基于俯冲模型的SAR成像处理和几何校正
短句来源
  “diving model”译为未确定词的双语例句
     The squint SAR(synthetic aperture radar) high resolution imaging formation and geometric correction method based on the diving model were studied. The general three-dimensional geometric model was founded based on the SAR movement mode. The equivalent squint range model was derived from this general geometric model and the echo signal expression was given based on this range model.
     针对高速俯冲状态下斜视SAR(Synthetic Aperture Radar)高分辨率成像处理和几何校正方法进行研究,建立了通用的SAR空间几何模型,在此基础上推导了俯冲状态下的等效斜视距离模型,并给出相应的回波信号数学模型.
短句来源
     The computer simulation results illuminated that the modified ECS algorithm could be used to form high resolution image for diving model SAR and squint SAR,also geometric distortion could be calibrated with this correction method.
     计算机仿真结果表明,改进ECS算法能够对俯冲模式SAR进行高分辨率成像处理,并对斜视SAR具有较好的处理能力,提出的几何校正方法能够很好地修正几何失真.
短句来源
     This paper concentrates on accurate motion compensation method for airborne SAR in diving model. The equivalent squint range model is deduced in the case of constant acceleration movement and CA-ECS(Constant Acceleration-Extended Chirp Scaling) imaging algorithm is proposed with new phase compensation factors based on this range model.
     针对空载SAR俯冲模式下的高精度运动补偿方法进行研究,推导了恒加速度运动条件下的等效斜视距离模型,基于该模型推导出Extend Chirp Scaling相位补偿因子的数学表达式,提出了一种CA-ECS(Con-stantAcceleration ECS)算法.
短句来源
  相似匹配句对
     Diving
     跳水
短句来源
     model.
     模型。
短句来源
     Model.
     模型的适用范围。
短句来源
     Mixer of Diving Aeration with Forced Draft on Model QBG
     QBG型鼓风式潜水曝气搅拌机
短句来源
     Intraocular pressure monitoring in diving experiment of model eye with tension sensor.
     模拟眼记录跳水运动入水眼压变化的试验研究
短句来源
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The squint SAR(synthetic aperture radar) high resolution imaging formation and geometric correction method based on the diving model were studied.The general three-dimensional geometric model was founded based on the SAR movement mode.The equivalent squint range model was derived from this general geometric model and the echo signal expression was given based on this range model.According to the signal's characteristic,burst work mode was adopted in diving SAR,and a modified...

The squint SAR(synthetic aperture radar) high resolution imaging formation and geometric correction method based on the diving model were studied.The general three-dimensional geometric model was founded based on the SAR movement mode.The equivalent squint range model was derived from this general geometric model and the echo signal expression was given based on this range model.According to the signal's characteristic,burst work mode was adopted in diving SAR,and a modified ECS(extended chirp scaling) imaging algorithm was utilized to form high resolution image.The imaging formation flow chart and four ECS phase compensation factors were presented.According to the range equation and Doppler positioning equation,geometric correction calculating expressions corresponding to ECS algorithm were derived.The computer simulation results illuminated that the modified ECS algorithm could be used to form high resolution image for diving model SAR and squint SAR,also geometric distortion could be calibrated with this correction method.

针对高速俯冲状态下斜视SAR(Synthetic Aperture Radar)高分辨率成像处理和几何校正方法进行研究,建立了通用的SAR空间几何模型,在此基础上推导了俯冲状态下的等效斜视距离模型,并给出相应的回波信号数学模型.根据高速俯冲SAR的信号特点,采用Burst工作模式,利用改进的ECS(Extended Chirp Scaling)成像算法进行成像处理,给出了成像处理流程和相位补偿因子表达式.根据距离方程和多普勒定位方程组推导了针对ECS成像算法的几何校正计算公式.计算机仿真结果表明,改进ECS算法能够对俯冲模式SAR进行高分辨率成像处理,并对斜视SAR具有较好的处理能力,提出的几何校正方法能够很好地修正几何失真.

This paper concentrates on accurate motion compensation method for airborne SAR in diving model.The equivalent squint range model is deduced in the case of constant acceleration movement and CA-ECS(Constant Acceleration-Extended Chirp Scaling) imaging algorithm is proposed with new phase compensation factors based on this range model.The influences of multi-directional velocities and accelerations are taken into account in phase(compensation)factors of CA-ECS algorithm,so motion compensation...

This paper concentrates on accurate motion compensation method for airborne SAR in diving model.The equivalent squint range model is deduced in the case of constant acceleration movement and CA-ECS(Constant Acceleration-Extended Chirp Scaling) imaging algorithm is proposed with new phase compensation factors based on this range model.The influences of multi-directional velocities and accelerations are taken into account in phase(compensation)factors of CA-ECS algorithm,so motion compensation with acceleration can be achieved via phase (compensation).This algorithm is a more versatile and applicable imaging algorithm for subaperture data.The computer simulation results illustrate that the squint range model has less error and CA-ECS algorithm can be used to accomplish motion compensation with acceleration efficiently.

针对空载SAR俯冲模式下的高精度运动补偿方法进行研究,推导了恒加速度运动条件下的等效斜视距离模型,基于该模型推导出Extend Chirp Scaling相位补偿因子的数学表达式,提出了一种CA-ECS(Con-stantAcceleration ECS)算法.该算法的相位补偿因子包含多个方向速度和加速度参数,能够实现恒加速度条件下的运动补偿,是一种通用性强、适用面广的子孔径成像算法.计算机仿真结果表明本文使用的等效斜视距离模型的误差较小,CA-ECS算法能有效地完成加速度运动补偿.

 
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