搜索结果: 16-30 共查到“光学工程 Through-space”相关记录30条 . 查询时间(0.256 秒)
Fisher’s linear discriminant (FLD) and support vector machine (SVM) in non-negative matrix factorization (NMF) residual space for face recognition
face recognition Fisher linear discriminant non-negative matrix factorization residual image
2011/5/9
A novel method of Fisher’s linear discriminant (FLD) in the residual space is put forward for
the representation of face images for face recognition, which is robust to the slight local
feature chan...
Wave-vector space picture for radiationless focusing and beaming
Wave-vector space picture radiationless focusing beaming
2015/8/10
Radiationless interference of an electromagnetic wave occurs in the near field when the feature sizes of the waves are at the deep subwavelength scale. We present the propagation in such a regim...
The Fiber Optic Subsystem Components on Express Logistics Carrier for International Space Station
Fiber Optic Subsystem Components Express Logistics Carrier International Space Station
2015/7/20
The Photonics Group at the United States NASA Goddard Space Flight Center has been supporting the design,development, manufacturing and integration of the optical fiber subsystem on the Express Logist...
Free-Space Laser Communications:The Japanese Experience
Free-Space Laser Communications Japanese Experience
2015/7/20
Free-space laser communication demonstrations are introduced in Japan with results obtained through previous demonstration experiments and current developments. A comparison among different optical sy...
100 Gb/s Per-Channel Free-Space Optical Transmission with Coherent Detection and MIMO Processing
Per-Channel Free-Space Optical Transmission Coherent Detection MIMO Processing
2015/7/20
We experimentally demonstrate the first 100 Gb/s per-channel free-space optical transmission using polarization-multiplexed QPSK, coherent detection, and MIMO processing. This is the highest per-chann...
Sensitivity of Balanced Receivers for Polarization Shift Keying in Free-Space Optical Communications
Sensitivity Balanced Receivers Polarization Shift Free-Space Optical Communications
2015/7/20
Polarization modulation is a robust and efficient format for optical free-space communications. We study the sensitivity of real-world balanced receivers, including possible atmospheric effects on the...
Integrated Optical Receiver for Lens-Less Short Range Free-Space Gigabit Communication
Integrated Optical Receiver Free-Space Gigabit Communication
2015/7/17
High data rate lens-free free-space communication using an optoelectronic integrated true light-to-logic BiCMOS receiver demonstrates a cheap and easy single-chip solution for flexible wireless gigabi...
Performance analysis of bit error rate for free space optical communication with tip-tilt compensation based on gamma–gamma distribution
free space optical communication atmospheric turbulence
2011/5/10
In this paper, the gamma – gamma probability distribution is used to model turbulent channels. The bit error rate (BER) performance of free space optical (FSO) communication systems employing on-off k...
Influence of space charged particles on satellite optical communication system
satellite optical communication charged particle
2011/5/6
Although research of satellite optical communication system has been carried out for many years, there is scarce literature to comprehensively analyze the influence of space environment on satellite o...
320 Gbit/s (8x40 Gbit/s) double-pass terrestrial free-space optical link transparently connected to optical fibre lines
double-pass terrestrial free-space optical link optical fibre lines
2015/8/6
World first demonstration of WDM 8x40 Gbit/s free-space transmission is presented in a terrestrial double-pass link, by using compact terminals, which allow direct optical connection to fibre links.
Variable Optical Attenuation using space-selectively crystallized fiber with second-order optical nonlinearity
Variable Optical Attenuation crystallized fiber second-order optical nonlinearity
2015/8/6
We have fabricated glass fibers with nonlinear crystalline phase in clad area by laser irradiation, and demonstrated variable optical attenuation by electro-optic effect using the space-selectively cr...
Integrated Optical Receiver for Lens-less Free-space Communication
Integrated Optical Receiver Lens-less Free-space Communication
2015/8/6
High data rate lens-free free-space communication using an optoelectronic integrated BiCMOS receiver demonstrates a cheap and easy solution for flexible interconnects with a very low bit error rate.
QPSK Transmission over Free-Space Link at 3.8 ?m using Coherent Detection with Wavelength Conversion
QPSK Transmission Free-Space Link Coherent Detection Wavelength Conversion
2015/7/31
We demonstrate the first mid-infrared free-space optical link employing coherent detection and parametric wavelength conversion.
Space Optics Manufacturing Technology Center（SOMTC）
Space Optics Manufacturing Technology Center SOMTC Space Optics 光学
2008/3/9
To explore the deeper dimensions of space optics, SOMTC invites you to use our services. Our world class facilities and capabilities as shown in this web site are available for commercial and academic...
Fine structure of heterogeneous vector field and its space averaged polarization characteristics
vortex polarization polarization singularities coherence matrix Stokes parameters
2011/4/28
Interrelation between the fine structure of the vector field and its averaged polarization characteristics is considered. It is shown that space averaged Stokes parameters are defined by dispersion of...