Multi-Block UAMP Based Detection for OTFS with Rectangular Waveform

2021 ◽  
pp. 1-1
Author(s):  
Fei Liu ◽  
Zhengdao Yuan ◽  
Qinghua Guo ◽  
Zhongyong Wang ◽  
Peng Sun
Keyword(s):  
Rectangular Waveform

Stability of ion motion in the quadrupole ion trap driven by rectangular waveform voltages

2003 ◽  
Vol 230 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Won-Wook Lee ◽  
Soon-Ki Min ◽  
Cha-Hwan Oh ◽  
Pill-Soo Kim ◽  
Seok-Ho Song ◽  
...  
Keyword(s):  
Ion Trap ◽  
Quadrupole Ion Trap ◽  
Ion Motion ◽  
Rectangular Waveform

A New Design of Signal Source for Crosstalk Test of Multi-Channel Data Acquisition System

2012 ◽  
Vol 246-247 ◽  
pp. 1012-1016 ◽  
Author(s):  
Yan Hu Shan ◽  
Yong Feng Ren ◽  
Guo Yong Zhen ◽  
Xin Quan Jiao
Keyword(s):  
Phase Shift ◽  
Data Acquisition ◽  
Low Frequency ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Signal Source ◽  
Testing Method ◽  
System A ◽  
Rectangular Waveform ◽  
Effective Channel

For the multi-channel data acquisition system, crosstalk significantly affects the sample accuracy. Through analyzing the mode of multiplexer and the sampling timing sequence, we demonstrated that crosstalk effect mainly results from the switch of multiplexer for the low- frequency multi-channel data acquisition system. A new crosstalk testing method based on phase-shift rectangular waveform for the multi-channel data acquisition system was proposed. The phase-shift rectangular waveform was designed. Experiments were conducted to test crosstalk effect of the multi-channel data acquisition system. The experimental results were demonstrated that the proposed approach based on the phase-shift rectangular waveform exhibits a distinct feature in effective channel crosstalk testing, compared with waveforms of other types. Thus, the proposed method is effective to detect crosstalk of the multi-channel data acquisition system.

Deposition of Multiwall Carbon Nanotubes Using Low Frequency Alternating Electrophoretic Deposition

2009 ◽  
Vol 412 ◽  
pp. 83-86 ◽  
Author(s):  
Amir Reza Gardeshzadeh ◽  
Babak Raissi ◽  
Ehsan Marzbanrad
Keyword(s):  
Carbon Nanotubes ◽  
Electric Fields ◽  
Electrophoretic Deposition ◽  
Low Frequency ◽  
Multiwall Carbon Nanotubes ◽  
Deposition Pattern ◽  
Ac Electric Fields ◽  
Rectangular Waveform ◽  
Multiwall Carbon ◽  
Deposit Yield

In this paper, electrophoretic deposition of multiwall carbon nanotubes (MWNTs) using low frequency (0.01-1000 Hz) AC electric fields, is reported. The effect of depositing parameters such as frequency and waveform on deposit yield is investigated. Results show that the deposit yield decreases with frequency. The rectangular waveform yields more deposit yield than sinusoidal and triangular waveforms. The deposition pattern is also different in AC and DC electric fields. This technique may be used for deposition of MWNTs thick films.

Rectangular Waveform Generation with Harmonics Suppression

2016 ◽  
Author(s):  
Masayuki Kawabata ◽  
Koji Asami ◽  
Shohei Shibuya ◽  
Tomonori Yanagida ◽  
Haruo Kobayashi
Keyword(s):  
Waveform Generation ◽  
Rectangular Waveform

Numerical Simulation of the Rational Loading Waveform in Large Diameter SHPB Dynamic Test for Rock-Like Materials

2011 ◽  
Vol 243-249 ◽  
pp. 2419-2422 ◽  
Author(s):  
Feng Qiang Gong ◽  
Xi Ling Liu ◽  
Ke Gao
Keyword(s):  
Split Hopkinson Pressure Bar ◽  
Large Diameter ◽  
Dynamic Test ◽  
Pulse Waveform ◽  
Hopkinson Pressure Bar ◽  
Triangular Waveform ◽  
Finite Element Software ◽  
Transmission Distance ◽  
Loading Waveform ◽  
Rectangular Waveform

For rock-like materials, large diameter SHPB (Split Hopkinson Pressure Bar,SHPB) is necessary and essential in dynamic test. Based on the finite element software ANSYS/LS- DYNA, the transmission of different stress pulse waveform in large diameter bar was simulated and the loading waveform dispersion effect was investigated in this paper. Three typical stress pulses (rectangular waveform, triangular waveform and half-sine waveform) with the same duration time and maximum stress amplitude value were loaded on input bar of SHPB. The time-stress curves of different transmission distance on input bar were traced and recorded and four specific aspects were discussed respectively. Compared with rectangular waveform and triangular waveform, the results of numerical analysis indicated that there isn’t pulse waveform dispersion for half-sine waveform to transmit in large diameter SHPB and there is enough increased time to satify stress equilibrium before rock-like materials failure. The half-sine stress wave is able to meet the one-dimensional assumptions in the propagation process and can be used in large diameter SHPB test.

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