Results 51 to 60 of about 103,288 (249)

DECOMPOSITION TECHNIQUES FOR ICESAT/GLAS FULL-WAVEFORM DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The geoscience laser altimeter system (GLAS) on the board Ice, Cloud, and land Elevation Satellite (ICESat), is the first long-duration space borne full-waveform LiDAR for measuring the topography of the ice shelf and temporal variation, cloud and ...
Z. Liu, X. Gao, G. Li, J. Chen
doaj   +1 more source

Study on pulse shaping optimization of multiphase compensated pulsed alternator

Energy Reports, 2022
Compensated pulsed alternator (CPA) can exchange its kinetic energy into high current pulses. The pulse current waveform can be provided more flexibility by means of the trigger angle control of each phase from the multiphase CPA pulse driving system ...
Qi Li, Chengxu Sun, Youlong Wang, Ye Li
doaj   +1 more source

Efficient Fast-Convolution-Based Waveform Processing for 5G Physical Layer [PDF]

, 2017
This paper investigates the application of fast-convolution (FC) filtering schemes for flexible and effective waveform generation and processing in the fifth generation (5G) systems.
Levanen, Toni, Pajukoski, Kari, Pirskanen, Juho, Renfors, Markku, Valkama, Mikko, Valkonen, Sami, Yli-Kaakinen, Juha   +6 more
core   +2 more sources

The Impact of High‐Productivity Processing on the Fatigue Failure of an Additive Manufactured Superalloy HAYNES 282

Advanced Engineering Materials, EarlyView.
The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh, Ahmed Fardan, Tatiana Mishurova, Eduard Hryha   +3 more
wiley   +1 more source

Constrained Transmit Beampattern Design Using a Correlated LFM-PC Waveform Set in MIMO Radar

Sensors, 2020
This paper considers the design of a desired transmit beampattern under the good ambiguity function constraint using a correlated linear frequency modulation-phase coded (LFM-PC) waveform set in multiple-input-multiple-output (MIMO) radar. Different from
Sheng Hong, Yantao Dong, Rui Xie, Yu Ai, Yuhao Wang   +4 more
doaj   +1 more source

Slow-Time Ambiguity Function Shaping With Spectral Coexistence for Cognitive Radar

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
In the spectrum-congested environment, weak target obscuration can be addressed by simultaneously shaping the ambiguity function and waveform spectrum based on cognitive radar a priori information. In this article, we investigate joint waveform design to
Cui Zhang, Jifang Pei, Yujie Zhang, Yin Zhang, Weibo Huo, Yulin Huang, Xuegang Wang   +6 more
doaj   +1 more source

Estimating Blood Pressure from Photoplethysmogram Signal and Demographic Features using Machine Learning Techniques

, 2020
Hypertension is a potentially unsafe health ailment, which can be indicated directly from the Blood pressure (BP). Hypertension always leads to other health complications. Continuous monitoring of BP is very important; however, cuff-based BP measurements
Chowdhury, Moajjem Hossain, Chowdhury, Muhammad E. H., Khandakar, Amith, Mahbub, Zaid B, Reaz, Mamun Bin Ibne, Shuzan, Md Nazmul Islam, Uddin, M. Monir   +6 more
core   +1 more source

Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff [PDF]

, 2017
This paper shows that wirelessly powered backscatter communications is subject to a fundamental tradeoff between the harvested energy at the tag and the reliability of the backscatter communication, measured in terms of SNR at the reader. Assuming the RF
Clerckx, Bruno, Huang, Kaibin, Zawawi, Zati Bayani   +2 more
core   +2 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

OFDM Waveform Design for Joint Radar-communication Based on Data Distortion

Leida xuebao
Orthogonal Frequency Division Multiplexing (OFDM) waveform design is one of the key physical layer technologies for achieving joint radar-communication.
Yan LIU, Xianrong WAN, Jianxin YI
doaj   +1 more source