2015 Vol. 8, No. 5
2015, 8(5): 679-698.
doi: 10.3788/CO.20150805.0699
Abstract
FullText HTML
PDF 2030KB
Abstract:
Aerosol is considered to be one of many uncertainties which affect the Earth's climates and environments. Space-borne passive optical remote sensor with large field of view, wide-band and high spatial resolution has become an effective means to reali...
Aerosol is considered to be one of many uncertainties which affect the Earth's climates and environments. Space-borne passive optical remote sensor with large field of view, wide-band and high spatial resolution has become an effective means to reali...
2015, 8(5): 699-713.
doi: 10.3788/CO.20150805.0679
Abstract:
Photoacoustic imaging has obtained the widespread attention in the world due to its high resolution, high contrast and deep imaging depth etc. This paper describes the principles of photoacoustic imaging, the process of its generation, propagation an...
Photoacoustic imaging has obtained the widespread attention in the world due to its high resolution, high contrast and deep imaging depth etc. This paper describes the principles of photoacoustic imaging, the process of its generation, propagation an...
2015, 8(5): 714-724.
doi: 10.3788/CO.20150805.0714
Abstract:
The application of remote sensing technology to the mapping is the development trend of modern geological mapping technology. With the increasing resolution of optical load, mapping remote sensor has become an important guarantee for social developme...
The application of remote sensing technology to the mapping is the development trend of modern geological mapping technology. With the increasing resolution of optical load, mapping remote sensor has become an important guarantee for social developme...
2015, 8(5): 725-735.
doi: 10.3788/CO.20150805.0725
Abstract:
Driven by application requirements and the development of hyper spectral technology, atmospheric total column CO2 monitoring using passive space borne high resolution spectrometry has become a very active research field. In this paper, we introduce t...
Driven by application requirements and the development of hyper spectral technology, atmospheric total column CO2 monitoring using passive space borne high resolution spectrometry has become a very active research field. In this paper, we introduce t...
2015, 8(5): 736-743.
doi: 10.3788/CO.20150805.0736
Abstract:
The principle, characteristics and necessity of vacuum ultraviolet wavefront-division Fourier transform spectrometry are analyzed in this paper. The typical structures, performances, and applications of several spectrometers using vacuum ultraviolet ...
The principle, characteristics and necessity of vacuum ultraviolet wavefront-division Fourier transform spectrometry are analyzed in this paper. The typical structures, performances, and applications of several spectrometers using vacuum ultraviolet ...
2015, 8(5): 744-754.
doi: 10.3788/CO.20150805.0744
Abstract:
Shape and attitude estimation based on lightcurve inversion provide a new technological approach for space target surveillance systems. Firstly, the necessity of space target information inversion based on lightcurve is discussed. Secondly, the perfo...
Shape and attitude estimation based on lightcurve inversion provide a new technological approach for space target surveillance systems. Firstly, the necessity of space target information inversion based on lightcurve is discussed. Secondly, the perfo...
2015, 8(5): 755-767.
doi: 10.3788/CO.20150805.0755
Abstract:
Photoelectric encoder is a kind of numerical high-precision angle-measuring device, which is grandly applied in modern automation system. In order to do in-depth research and improve detection efficiency in photoelectric encoder fault diagnosis, the ...
Photoelectric encoder is a kind of numerical high-precision angle-measuring device, which is grandly applied in modern automation system. In order to do in-depth research and improve detection efficiency in photoelectric encoder fault diagnosis, the ...
2015, 8(5): 768-774.
doi: 10.3788/CO.20150805.0768
Abstract:
For the lack of top-down task guidance and dynamic information processing of traditional visual saliency model, a visual saliency model fused with the motion features is designed and implemented. The static features and motion features are extracted ...
For the lack of top-down task guidance and dynamic information processing of traditional visual saliency model, a visual saliency model fused with the motion features is designed and implemented. The static features and motion features are extracted ...
2015, 8(5): 775-784.
doi: 10.3788/CO.20150805.0775
Abstract:
Due to the characteristic of images in laser active imaging, a novel target recognition method based on fast contour torque features(FCTF) is proposed. The concept of torque is introduced into target recognition. The proposed fast contour torque feat...
Due to the characteristic of images in laser active imaging, a novel target recognition method based on fast contour torque features(FCTF) is proposed. The concept of torque is introduced into target recognition. The proposed fast contour torque feat...
2015, 8(5): 785-793.
doi: 10.3788/CO.20150805.0785
Abstract:
In order to meet the requirement of the engineering application about the real-time image processing, according to the one billion pixel transient cloud imaging system which has been designed based on the combined structure of a concentric spherical ...
In order to meet the requirement of the engineering application about the real-time image processing, according to the one billion pixel transient cloud imaging system which has been designed based on the combined structure of a concentric spherical ...
2015, 8(5): 794-799.
doi: 10.3788/CO.20150805.0794
Abstract:
A compact all-solid-state intracavity sum-frequency mixing laser at 608.1 nm is reported. A Nd: YAG crystal and a Nd: YVO4 crystal are pumped by two laser diodes respectively in two sub-arms of the laser cavity. In the two arms, laser wavelengths of ...
A compact all-solid-state intracavity sum-frequency mixing laser at 608.1 nm is reported. A Nd: YAG crystal and a Nd: YVO4 crystal are pumped by two laser diodes respectively in two sub-arms of the laser cavity. In the two arms, laser wavelengths of ...
2015, 8(5): 800-805.
doi: 10.3788/CO.20150805.0800
Abstract:
In order to manufacture a pulse single-frequency laser with master oscillator power amplifier(MOPA) structure used for laser coherence imaging, the properties of acousto-optic Q-switched pulse single-frequency 1 064 nm laser used as MOPA laser seed, ...
In order to manufacture a pulse single-frequency laser with master oscillator power amplifier(MOPA) structure used for laser coherence imaging, the properties of acousto-optic Q-switched pulse single-frequency 1 064 nm laser used as MOPA laser seed, ...
2015, 8(5): 806-813.
doi: 10.3788/CO.20150805.0806
Abstract:
Thermal stability of quantum dot(QD) luminescence is considered as an important factor for their applications in luminescent devices because of the Joule heat caused by inevitable current. The temperature-dependent photoluminescence(PL) properties of...
Thermal stability of quantum dot(QD) luminescence is considered as an important factor for their applications in luminescent devices because of the Joule heat caused by inevitable current. The temperature-dependent photoluminescence(PL) properties of...
2015, 8(5): 814-822.
doi: 10.3788/CO.20150805.0814
Abstract:
This paper counts and analyzes the effect of atmospheric dispersion on image resolution of 4 m optical telescope system. It is introduced that atmospheric dispersion will influence image resolution when the zenith angle is larger than 15°. With the z...
This paper counts and analyzes the effect of atmospheric dispersion on image resolution of 4 m optical telescope system. It is introduced that atmospheric dispersion will influence image resolution when the zenith angle is larger than 15°. With the z...
2015, 8(5): 823-831.
doi: 10.3788/CO.20150805.0823
Abstract:
In order to meet the requirements of laboratory radiometric calibration for continually rising optical aperture of optical remote sensors, 4 m extended uniform source for radiometric calibration is designed based on near extended source method. The m...
In order to meet the requirements of laboratory radiometric calibration for continually rising optical aperture of optical remote sensors, 4 m extended uniform source for radiometric calibration is designed based on near extended source method. The m...
2015, 8(5): 832-839.
doi: 10.3788/CO.20150805.0832
Abstract:
In order to realize three-dimensional(3D) angle measurement, a photoelectric method using cylindrical lens is presented. First, based on the principle of auto-collimation, a pair of cylindrical lens and a tetrahedral reflector are used instead of a p...
In order to realize three-dimensional(3D) angle measurement, a photoelectric method using cylindrical lens is presented. First, based on the principle of auto-collimation, a pair of cylindrical lens and a tetrahedral reflector are used instead of a p...
2015, 8(5): 840-846.
doi: 10.3788/CO.20150805.0840
Abstract:
A method of assembly error calculation is proposed in this paper. First, the posture of the mirrors and the direction of the laser beam are represented by using unit normal vector and unit direction vector. Then, using the coordinate transformation a...
A method of assembly error calculation is proposed in this paper. First, the posture of the mirrors and the direction of the laser beam are represented by using unit normal vector and unit direction vector. Then, using the coordinate transformation a...
2015, 8(5): 847-872.
doi: 10.3788/CO.20150805.0847
Abstract:
The research on key techniques of wide field extreme ultraviolet(EUV) spherical micro-channel plate(MCP) photon-counting imaging detector which will be used in space probe in China have been done. Firstly, the secondary electron yield model of photoc...
The research on key techniques of wide field extreme ultraviolet(EUV) spherical micro-channel plate(MCP) photon-counting imaging detector which will be used in space probe in China have been done. Firstly, the secondary electron yield model of photoc...
2015, 8(5): 873-880.
doi: 10.3788/CO.20150805.0873
Abstract:
For the consistency with the national standard and ISO international standard on laser vocabulary and symbols, this paper discusses the comprehension and usage problems of some ordinary terminologies for laser. The paper oppugns the misuse between pu...
For the consistency with the national standard and ISO international standard on laser vocabulary and symbols, this paper discusses the comprehension and usage problems of some ordinary terminologies for laser. The paper oppugns the misuse between pu...
