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Then based on CWMS, we propose a new method to enhance the resolution of seismic traces. Firstly, we divide the seismic signal into proper segments by Gabor molecule-windows adaptive to the signal, where each segment is regarded stationary, and then transform it into the Gabor domain. Secondly, we deal with the amplitude spectrum for each segment to expand the frequency band of the spectrum in the Gabor domain. Finally, taking inverse Gabor transform on modified time-frequency coefficients, we get the high-resolution signal.

然后基于变子波模型,提出了一种新的提高地震记录分辨率的方法:第一步,用自适应于地震记录的Gabor分子窗把地震记录恰当地划分成若干片断,每段内信号近似平稳,然后将地震记录变换到时间-频率域;第二步,在变换域对每个分子窗内信号的振幅谱进行处理以拓宽频带;最后把处理后的时间-频率域函数反变换回时间域得到提高分辨率后的结果。

It will decrease when the pointing angle increases,and vice versa.By giving a pixel size of 20 μm for a detector,an orbit altitude of 600 km and a beam deflexion angle low than 30° for the imaging spectrometer, the effective focal length of the telescope was calculated(400,470 or 435 mm),and the relation curves between the relative ratios of ground resolution and the beam deflexions were presented.

给定成像光谱仪探测器像元尺寸为20 μm,飞行轨道高度为600 km,光线摆角≤30°,以星下点、最大摆角和整个运动补偿段地面分辨率中值为30 m为依据来计算望远系统的焦距,求得望远系统焦距为400、470、435 mm,并给出了此时的地面分辨率相对比值与光线摆角的关系曲线。

Moreover, the conclusion was farther validated by ERS-1/DEM gridded 5 kilometers and RADARSAT Antarctic Mapping Project 1km-gridded DEM, tidal noise detected by in situ GPS measurements, and horizontal velocity vector map from RADARSAT SAR images deduced by interferometry method of the whole ice stream.

同时对该地区所在的整个冰流系统用5km分辨率的ERS-1/DEM数据和1km分辨率的RAMP/DEM数据、GPS实地测量数据,以及RADARSAT InSAR速度矢量图等对这一结论进行了深入的验证。

Based on the theory and methodology of fractal geometry,and integrated the data of QuickBird-2 --the highest resolution remote sensing business satellite in the world up to now,the authors have quantitatively studied remote sensing lineations in Gaolong gold deposit of guangxi.

利用分形几何学的原理和方法,结合目前全球分辨率最高的商业成像卫星——QuickBird-2高分辨率卫星遥感资料,对广西高龙金矿区遥感线性构造进行了定量研究。

By establishing a model based on the law of infrared radiation transmission in atmosphere and the characteristics of infrared imaging system for the apparent contrast between the target and the background, and analyzing the model over two wavebands to formulate the distance measuring formula and the distance resolving power formula, a passive distance measurement method is proposed for aerial point target distance measurement.

提出了对空中点目标进行被动测距的方法。基于红外辐射在大气中的传输规律和红外成像系统的特性,建立了目标和背景的表观对比度模型。通过对两个波段上对比度模型的分析,推导出了测距公式和距离分辨率公式。理论分析表明,只要得到大气在两个波段上的消光系数,通过测量目标在两个波段、两个时刻上的目标表观对比度,即可计算得到目标距离和目标径向速度,而距离分辨率则取决于系统的对比度探测能力及相关参数。

Because of the low resolution of 〓C dating and the shortage of clear varves, it is very important for the high resolution dating of recent sediments to apply 〓Pb and 〓Cs accurately.

鉴于沉积物〓C测年的低分辨率和沉积物年纹理的缺失,准确地应用〓Pb和〓Cs计年法便成为我国湖泊现代沉积物高分辨率计年的关键。

These tomographs are able to collect high resolution three-dimensional datasets of small samples.

医学和生物学等诸多领域需要对较小的动物或者样品做小容积高分辨率成像分析,也需要高分辨率的成像手段以满足日益增长的研究和分析的要求。

Laser confocal scanning microscopy is a new technology combining modern optics and electronics. The unique feature of point light source and point detecting eliminates out-of-focus blur and spots. Therefore, the axial and lateral resolution of the system is superior and 3-D imaging can be realized by scanning point by point of the object profile. Because of its advantages, confocal measurement technology is widely applied in many fields, such as medical treatment, biology, configuration of substances and micro-electronics.

激光共焦扫描显微术是结合了现代光电技术的新型扫描显微成像方法,其独特的点照明与点探测机理排除了离焦光线对图像造成的模糊和斑点影响,因而具有出众的轴向分辨率和横向分辨率;采用扫描技术在样品表面的各点逐点扫描,能够实现对微小物体的三维成像,因此在医疗、生物、物质结构、微电子等领域均具有广泛的应用。

It is one of trends for seismical signalprocessing that using vertical seismical profile and ground seismic datastogether for enhancing resolution, because of VSP obtain much morehigh-frequency information.

反褶积算法有一定的应用范围,同时也有其不足之处;垂直地震剖面VSP具有干扰小,能量强,分辨率高等优点,地面地震与VSP相结合合提高地震分辨率是目前的趋势之一。

The test results show rotary driving of 2-DOF actuator reaches 0.45 μrad in resolution, 18 mm in travel, 0.04 rads^(-1) in velocity and 0.2 Nm in torque; linear driving reaches 40 nm in resolution, 20 mm in travel, 19.2 mm min^(-1) in velocity and 10 N in driving power approximately.

试验结果表明:二维驱动器的旋转驱动分辨率达到0.45μrad,行程360°,速度达到0.04rads^(-1)时,扭矩可达0.2Nm;直线驱动分辨率40 nm,行程20 mm,速度19.2 mmmin^(-1)时,驱动力可达近10N,可实现2自由度精密驱动。

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