搜索结果: 1-15 共查到“光学工程 Millimeter wave”相关记录22条 . 查询时间(0.171 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
2018/4/30
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...
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...
Phase Modulated Optical Millimeter Wave Generation Based on Externally Injected Gain Switched Laser
Fiber optics communications Radio frequency photonics
2011/5/26
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...
10 Gbit/s Wireless Transmission Using Millimeter-Wave over Optical Fiber Systems
Optoelectronics Fiber optics optical communications Radio frequency photonics
2011/5/25
Millimeter-Wave-over-fiber systems are widely considered as a disruptive technology for high data rate wireless communications. This paper reviews recent achievements and trends in millimeter-wave-ove...
Optical Central Clock Distribution for MIMO-Enabled,Millimeter Wave Wireless Interconnects
Optics in Computing Optical Interconnects
2011/5/22
We propose a novel optical clock distribution scheme for MIMO-enhanced wireless interconnects. Low-power, error-free, multi-gigabit wireless transmission has been demonstrated by employing centrally d...
Field Demonstration of Bi-directional Millimeter Wave RoF Systems Inter-operable with 60 GHz Multi-gigabit CMOS Transceivers for In-building HD Video and Data Delivery
Optical communications Radio frequency photonics
2011/5/21
We demonstrate, for the first time, a bi-directional in-building radio-over-fiber access network to deliver multi-gigabit, high-definition video and data services using all-optical conversion at the h...
Multi-band 16QAM-OFDM Vector Signal Delivery over 60-GHz DSB-SC Optical Millimeter-Wave through LO Enhancement
Multi-band 16QAM-OFDM Vector Signal Delivery 60-GHz DSB-SC
2011/5/21
For the first time, multi-band vector signal delivery over DSB-SC RoF system generated via single-stage optical upconversion has been accomplished through LO power enhancement, and was successfully de...
Atacama Large Millimeter Array Local Oscillator: How Photonics is Enabling Millimeter-wave Astronomy
Telescopes Phased Array Imaging Systems
2011/5/21
In this talk we will describe the unique photonic technology that provides the reference for the local oscillator system of the ALMA millimeter wave radio telescope as well as describing the “down-str...
Arbitrary-frequency Optical Millimeter-wave Generation for Radio over Fiber Systems
Fiber Optics Communications Networks
2010/6/9
The arbitrary-frequency optical microwave or millimeter (mm)-wave signals, ranging from 25 to 325 -GHz with 25-GHz spacing, can be simultaneously generated based on the generation technology of multi-...
Spectrum-Compressed,Millimeter-Wave Wireless over Fiber Access System Using Duobinary Line Coding at 10-Gbps and Beyond
Networks Optical communications
2010/6/8
For the first time, a spectrum-compressed very-high-throughput wireless-over-fiber system leveraging duobinary signaling is proposed. Error-free transmission of a 10-Gbps duobinary signal at 60-GHz ov...
Low Phase Noise Millimeter-Wave Generation by Integrated Dual Wavelength Laser Diode
Semiconductor lasers Integrated Optics Devices
2010/6/8
We report millimeter-wave generation by an integrated dual wavelength laser diode based on optical sideband injection locking. Low phase noise millimeter-wave carrier at 42 GHz has been generated from...
A Novel Carrier-Eliminated Optical Millimeter-Wave Generation Using a Single Over-Driven Phase Modulator
Networks Optical communications
2010/6/4
A carrier-eliminated 40-GHz optical mm-wave generated by over-driving a phase modulator is first proposed. Error-free transmission over 10-km SMF-28 and 3-m wireless is successfully demonstrated with ...
Optoelectronic Generation of Millimeter-Wave White-Light at W-band with Very-Fast Sweeping Rate by Use of High-Power and Broadband Photonic Emitters
Photodiodes Radio frequency photonics
2010/6/4
By using photonic emitters and fast-scanning lasers at 1.55μm wavelengths, we generated very-flat spectra at 75-110GHz with a thirty times faster scanning-rate (35GHz/ms), much lower driving-voltage, ...