| 1. | Sea surface emissivity models in infrared image simulation 红外仿真中的海面发射率模型 |
| 2. | The image simulation of the ir decoy countermeasuring ir guidance missile 先进红外制导导弹对抗方法研究 |
| 3. | Infrared images simulation of locomotive object based on bp neural network 神经网络的运动目标红外图像仿真 |
| 4. | And then , imaging simulation software is programmed with visual c + + mfc to implement the course 并利用visualc + + mfc编写了成像仿真程序,使该过程得以实现。 |
| 5. | Many factors of sonar imaging simulation , such as the imaging principles , the calculating model and image displaying , are also investigated 对于声纳成像仿真的多种因素:成像原理、仿真的计算模型以及显示作了分析。 |
| 6. | Second , the imaging model built here has taken into account the tilt modulation , the hydrodynamic modulation , and current modulations of radar cross section . consequently , it has realized the imaging simulation of four kinds of wakes with the same imaging model . third , the orbital velocity of ocean wave was considered as the basic dynamic factor , and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity 该模型的主要特点是: ( 1 )它采用了三尺度复合表面模型的思想来计算海面的电磁散射,考虑了中等尺度波对纹波的进一步调制作用,弥补了传统双尺度模型的不足; ( 1 )它考虑了海浪的倾斜调制作用、流体动力调制作用和流场对雷达截面的调制作用,实现了用统一的仿真模型对四种舰船尾迹特征进行成像仿真; ( 3 )它把海面长波的轨道速度作为基本的动态成分,并依此来考虑海面运动对sar回波信号的影响。 |
| 7. | More recent studies show nanowires products with narrow dismeter distribution around 5 - 10mn and lengths ranging from several hundred nanometers to several micrometers can be obtained if the mixture solution of naoh and koh was replaced by koh solution . the nanowires were analyzed by a range of methods including powder x - ray diffraction ( xrd ) , high resolution electron microscopy ( hrem ) , selected area electron diffraction ( saed ) , electron energy loss spectroscopy ( eels ) , xrd and hrem image simulations . the structure of nanowires is determinded to be of the type of k2ti6oi3 利用x射线衍射( xri ) ) 、高分辨电子显微镜( hrtem ) 、选区电子衍射( saed ) 、电子能量损失谱( eels )以及x射线衍射和高分辨像模拟等分析测试手段,初步分析了这种纳米线的生长机理,探讨了她的结构和光学性能,实验结果显示这种纳米线具有kzti6o ; 3的结构,紫外一可见光吸收光谱显示, kzti6ol3纳米线禁带宽度约为3 . 45ev 。 |
| 8. | Then it should be worked out image simulation based on coons fractal patches and the characteristic blocks - based fractal image compression . in the later , the regional shape of partitioned image is encoded and then matched with other similar part of the image , which is the same as the original region in size and shape 利用特征块对图象进行分割,对分割后的图象,一方面用coons型分形曲面片拼接进行仿真,另一方面,对区域进行形状编码和分形相似性匹配,以对图象进行压缩编码。 |
| 9. | In this paper , applying wavelet transform to image compression and error resilience coding is addressed . the classical image coding algorithms based on wavelet transform have been discussed , and through many image simulation results , the coding algorithms based on wavelet transform have great priorities over other image coding methods 对基于小波变换的图像压缩方法中的经典算法( ezw , spiht )进行了探讨,并通过对多幅图像的仿真结果,证明较之于其他若干的图像编码方案,基于小波变换的压缩算法具有较强的优越性。 |
| 10. | The development of imaging simulation is introduced and the principle of optical remote sensing is studied in the paper . and the solar radiance , the influence on radiance transmission by atmosphere , the spectral properties of ground object and the characteristics of photoelectric imaging system are analyzed 本文系统地介绍了国内外光学遥感器在成像仿真方面的发展概况,研究了光学遥感器成像过程的辐射传输的理论基础,分别对太阳辐射、大气对辐射传输的影响、地物的光谱特性和遥感器的特征进行了分析。 |