搜索结果: 1-15 共查到“millimeter wave”相关记录38条 . 查询时间(0.065 秒)
WAVELET FUSION FOR CONCEALED OBJECT DETECTION USING PASSIVE MILLIMETER WAVE SEQUENCE IMAGES
passive millimeter wave sequence images sum of squared difference wavelet fusion concealed object detection
2018/5/11
PMMW imaging system can create interpretable imagery on the objects concealed under clothing, which gives the great advantage to the security check system. Paper addresses wavelet fusion to detect con...
2018年SPIE空间望远镜和仪器：光学，红外和毫米波会议（SPIE Space Telescopes and Instrumentation 2018:Optical,Infrared,and Millimeter Wave）
2018年 SPIE 空间望远镜和仪器：光学，红外和毫米波 会议
2017/11/27
The Space Telescopes and Instrumentation 2018 conference is designed to explore the current and foreseeable state-of-the-art of space telescope and instrumentation programs, concepts and technologies ...
Researchers Invent Breakthrough Millimeter-wave Circulator IC（图）
Researchers Millimeter-wave Circulator IC
2017/10/25
Columbia Engineering researchers, led by Harish Krishnaswamy, associate professor of electrical engineering, in collaboration with Professor Andrea Alu’s group from UT-Austin, continue to break new gr...
Millimeter wave spectroscopic measurements of stratospheric and mesospheric constituents over the Italian Alps: stratospheric ozone
millimeter-wave spectroscopy stratospheric ozone isentropic transport
2015/9/2
Measurements of rotational lines emitted by middle atmospheric trace gases have been carried out from the Alpine
station of Testa Grigia (45.9°N, 7.7°E, elev. 3500 m) by means of a Ground-Based Milli...
Millimeter-wave molecular mapping of comets Hyakutake and Hale -Bopp
Comet The wu comet Millimeter wave instrument
2014/12/9
The inner solar system passes of the bright comets C/1995 O1 Hale-Bopp and C/1996 B2 Hyakutake, coupled with modern, sensitive millimeter-wave instrumentation provided an opportunity to make unprecede...
Probing chemical evolution in molecular clouds with millimeter -wave observations
Cereal chemistry The interstellar medium Millimeter wavelength Molecular emission Dynamics Temperature observation The density of hydrogen molecules
2014/12/9
We present results for a study of gas-phase and grain chemical processes in the dense interstellar medium (ISM) using millimeter-wavelength observations of the pure rotational transitions of molecules...
The AzTEC Millimeter-wave Camera: Design, Integration, Performance, and the Characterization of the (sub-)millimeter Galaxy Population
Detectors Galaxies Instrumentation Starbursts Far-infrared background
2014/12/9
One of the primary drivers in the development of large format millimeter detector arrays is the study of sub-millimeter galaxies (SMGs) - a population of very luminous high-redshift dust-obscured star...
SiGe Millimeter-Wave (W-Band) Down-Converter for Phased Focal Plane Array
down-conveter phase focal plane array match networks
2014/12/8
A millimeter-wave (W-Band) down-converter for Phased Focal Plane Arrays (PFPAs) has been designed and fabricated using the IBM Silicon-Germanium (SiGe) BiCMOS 8HP process technology. The radio frequen...
Millimeter Wave Indium Phosphide Heterojunction Bipolar Transistors: Noise Performance and Circuit Applications
InP HBT LNA Modelling Transistor Small-signal modelling
2014/12/8
The performance of III-V heterojunction bipolar transistors (HBTs) has improved significantly over the past two decades. Today’s state of the art Indium Phosphide (InP) HBTs have a maximum frequency o...
This letter demonstrates a novel method to generate high-purity optical millimeter-wave signals with carrier suppression by using a frequency quadrupling technique. To the authors’ knowledge, this is ...
Generation of optical millimeter-wave (mm-wave) signal using a Mach–Zehnder modulator (MZM) based on double-sideband (DSB), single-sideband (SSB), and double-sideband with carrier suppression (DSBCS) ...
Following the accelerated development of wireless communications, efficient and costeffective methods of generating and transmitting microwave and millimeter-wave signals are increasingly important. T...
WITH THE accelerated development of wireless communications,efficient and cost-effective methodsof generating and transmitting microwave/millimeter-wave
signals are of the utmost importance. The gene...
Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe0.926Co0.074)2As2 single crystal
Instrumentation and Detectors depth, temperature dependence.
2011/9/29
In-plane surface Ka-band microwave impedance of optimally doped single crystals of the Fe-based superconductor Ba(Fe0.926Co0.074)2As2 (Tc= 22.8K) was measured. Sensitive sapphire disk quasi-optical re...
Phase Modulated Optical Millimeter Wave Generation Based on Externally Injected Gain Switched Laser
Fiber optics communications Radio frequency photonics
2015/5/26
A novel, simple, and cost effective set up for generating phase modulated millimeter-waves is experimentally demonstrated by using an externally injected gain switched laser. System performance has be...