Results 21 to 30 of about 6,382,299 (293)

Significantly fast spinodal decomposition and inhomogeneous nanoscale martensitic transformation in Ti–Nb–O alloys [PDF]

MATEC Web of Conferences, 2020
The β phase spinodal decomposition during continuous cooling in Ti‒Nb‒O alloys is investigated by the phase-field method. Addition of only a few at.%O to Ti‒23Nb (at.%) alloy remarkably increases the driving force of the β phase spinodal decomposition ...
ISHIGURO Yuya, TSUKADA Yuhki, KOYAMA Toshiyuki   +2 more
doaj   +1 more source

CPM-GFDM: A Novel Combination of Continuous Phase Modulation and Generalized Frequency Division Multiplexing for Wireless Communication

Applied Sciences, 2023
In this paper, continuous phase modulation-generalized frequency division multiplexing (CPM-GFDM) is proposed. The performance of CPM-GFDM is evaluated over Gaussian and frequency selective fading channels.
Imran A. Tasadduq
doaj   +1 more source

Synthetic Aperture Rader Imaging Characteristics of Electronically Controlled Time-varying Electromagnetic Materials

Leida xuebao, 2021
Micromotion targets can enable microDoppler modulation on electromagnetic waves owing to their motion components in different directions, resulting in the defocusing effects of the target imaging features along the azimuth direction.
Junjie WANG, Dejun FENG, Zhisong WANG, Shiqi XING, Yongzhen LI, Xuesong WANG   +5 more
doaj   +1 more source

Improving radar performance with constant envelope multi-level chirp

Tehnički Glasnik, 2019
M-level Continuous Phase Chirp Modulation is considered for data transmission. In this article, we would like to propose a new approach to transmitting information with the help of multi-level wave guide signaling. The main problem with the classic chirp
Farhad Bahadori-Jahromi, Alireza Hassannejad   +1 more
doaj   +1 more source

ERROR PERFORMANCE OF TRELLIS CODED QUANTIZATION/ CONTINUOUS PHASE MODULATION SYSTEMS (TCQ/CPM) ON AWGN CHANNELS

Electrica, 2003
In this paper, Trellis Coded Quantization/Continuous Phase Modulation systems have been introduced and error performance analysis has been investigated on AWGN channels.
Niyazi ODABASIOGLU, Osman Nuri UCAN, Onur OSMAN   +2 more
doaj   +2 more sources

Continuous Phase Modulation Proposal for Photonics-Wireless Sub-THz Transmissions

IEEE Access
This paper presents a waveform proposal for photonic-wireless sub-THz transmissions. The concept of Continuous Phase Modulation (CPM) is first explained.
Paul Desombre, Haifa Fares, Yves Louet
doaj   +1 more source

A simple spectra computing approach for continuous-phase phase modulation (CPPM)

, 2012
Digital Modulation TechniqueRecently, we have developed a special class of continuous-phase modulation (CPM) scheme, called the continuous-phase phase modulation (CPPM); it transmits the PAM information sequences using time-limited phase shaping pulses ...
Yang, Richard Hsin-hsyong; Lee, Chia-kun; Chern, Shiunn-jang
core   +1 more source

Strong modulation instability in a silicon–organic hybrid slot waveguide [PDF]

, 2015
In this paper, we investigate the strong modulation instability (MI) at telecommunication band in a silicon-organic hybrid slot waveguide. The organic material of polymer poly (bis para-toluene sulfonate) of 2, 4-hexadiyne 1, 6 diol (PTS), which has high
Kang, Z, Yan, B, Wu, Q, Zhang, Xianting, Yu, Chongxiu, Farrell, G, Yan, Binbin, Yuan, Jinhui, Zhang, X, Wu, Qiang, Yu, C, Wang, K, Sang, X, Yuan, J, Wang, Kuiru, Farrell, Gerald, Sang, Xinzhu, Kang, Zhe   +17 more
core   +1 more source

Research Status of CPM for Satellite-Terrestrial Integrated Network

天地一体化信息网络, 2023
Around the vision of ＆quot;full coverage＆quot; of the new generation of mobile communication system (6G), satelliteterrestrial integration, as one of the key technologies, is the development direction of the future wireless communication system.The ...
Zihao PAN, Chen XIE, Heng WANG, Daoxing GUO   +3 more
doaj   +2 more sources

Phase-Modulation-Mode-Locked Continuous-Wave MgO:PPLN Optical Parametric Oscillator

IEEE Photonics Journal, 2015
We report phase-modulation mode-locking of a continuous-wave (cw) singly-resonant optical parametric oscillator (OPO) in the near- and mid-infrared based on MgO-doped periodically poled LiNbO3 (MgO:PPLN) and pumped by an Yb-fiber laser at 1064 nm.
Kavita Devi, S. Chaitanya Kumar, M. Ebrahim-Zadeh   +2 more
doaj   +1 more source