针对我国对星载激光雷达的研究还不够充分，拟开展光学遥感影像和星载激光雷达混合源摄影测量研究。通过对星载激光雷达光子数据进行数字高程模型（DEM）面积元轨迹匹配，建立激光测高点轨迹与遥感影像生成数字表面模型（DSM）间的对应关系。将筛选后地面光子与高分辨率光学遥感影像进行联合区域网平差，并基于顾及激光测高点坐标误差的迭代求解方法，实现卫星遥感影像立体定位精度的提高。星载激光雷达数据ATL03、高分七号（GF-7）和天绘三号（TH-3）卫星遥感影像用于验证该方法的性能。实验结果表明，本文方法可以有效提高无地面点控制下卫星遥感影像立体定位精度，高程精度可达1.258 m。

ICESat-2为世界首颗光子计数激光雷达测高卫星，其上携带的ATLAS可获得覆盖全球的高精度激光脚点，有助于提高卫星光学影像的无控定位精度。设计实现了ATLAS激光测高数据与卫星影像的联合平差方案。首先通过多条件筛选准则选取高精度ATLAS激光测高点，然后将筛选后的激光测高点作为带误差控制点进行联合平差计算，使卫星影像定向参数得到了优化。利用河南郑州地区的资源三号02星影像和ATLAS ATL03级数据进行的试验结果表明，文中的平差方案可将影像定位的高程精度提高60.6%，平面精度提高56.4%，验证了文中提出的方法可在无外业控制点情况下显著提高卫星影像定位精度。

文章首先介绍了色散补偿的基本原理, 然后阐述了国内外最新的色散补偿技术, 包括技术成熟、而且已经大量投入商用的色散补偿光纤和技术不断趋于成熟的光纤布喇格光栅。此外还介绍了未来色散补偿的研究热点: 光子晶体光纤色散补偿和电子色散补偿技术。最后针对色散补偿技术的发展现状指出了其发展方向。

The experiment of laser-driven Rayleigh-Taylor (RT) instability on Shenguang II (SG-II) facility has been presented. A Ni-like silver soft x-ray laser at 13.9nm has been used as a probe to take radiography of the modulation target RT instability first time. The modulation target is irradiated by a laser beam at 527nm of wavelength, 1500J of energy and 2.4ns of pulse width (FWHM), which is focused to intensity of 4×1014Wcm-2 on the target by a lens array. The evolvement of RT instability has been observed clearly. The results obtained by numerical simulation agree with that given by experiments.

This paper presented the reults of experimental studies on transient soft X-ray laser using a picosecond pulsed laser facility. A rather intensity Ni-like Ag X-ray laser at 13.9 nm with output energy of about 5～10 nJ was obtained by irradiating the solid last targets with a several hundred picosecond long laser pulse in combination with an 1 ps ultra-short laser pulse.

The interferometry with an X-ray laser as probe is an important tool of diagnosing the electron density of a high temperature and dense plasma. A successful experiment of diagnosing the density of a CH plasma was demonstrated by using a Ni-like Ag X-ray laser as a probe and a Mach-Zehnder interferometer as instrument under the Shenguang II laser facility. The legible interferogram indicating the information of electron density was obtained.

The experimental studies of Ni-like Ta x-ray laser at near “water window" on Shenguang Ⅱ laser facility were reported. By using a new scheme of united driving of fundamental- and double-frequency laser, the distinct spectrum signal of Ni-like Ta x-ray laser at 4.48 nm was obtained under the total drive energy of 400J. The efficient gain-length product was about 5.5.