Analysis and mitigation of noise in simultaneous transmission and reception in MRI

2021 ◽  
Author(s):  
Bilal Tasdelen ◽  
Alireza Sadeghi‐Tarakameh ◽  
Ugur Yilmaz ◽  
Ergin Atalar
Keyword(s):  
Simultaneous Transmission

Simultaneous Transmission/Emission Myocardial Perfusion Tomography

Circulation ◽  
1996 ◽  
Vol 93 (3) ◽  
pp. 463-473 ◽  
Author(s):  
Edward P. Ficaro ◽  
Jeffrey A. Fessler ◽  
Paul D. Shreve ◽  
James N. Kritzman ◽  
Patricia A. Rose ◽  
...  
Keyword(s):  
Myocardial Perfusion ◽  
Myocardial Perfusion Tomography ◽  
Simultaneous Transmission

scholarly journals Robust Adaptive Filtering Algorithm for Self-Interference Cancellation with Impulsive Noise

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 196
Author(s):  
Jun Lu ◽  
Qunfei Zhang ◽  
Wentao Shi ◽  
Lingling Zhang ◽  
Juan Shi
Keyword(s):  
Adaptive Filtering ◽  
Interference Cancellation ◽  
Impulsive Noise ◽  
Weight Vector ◽  
Filtering Algorithm ◽  
Convergence Performance ◽  
Simulation Results ◽  
Robust Adaptive ◽  
Arctangent Cost Function ◽  
Simultaneous Transmission

Self-interference (SI) is usually generated by the simultaneous transmission and reception in the same system, and the variable SI channel and impulsive noise make it difficult to eliminate. Therefore, this paper proposes an adaptive digital SI cancellation algorithm, which is an improved normalized sub-band adaptive filtering (NSAF) algorithm based on the sparsity of the SI channel and the arctangent cost function. The weight vector is hardly updated when the impulsive noise occurs, and the iteration error resulting from impulsive noise is significantly reduced. Another major factor affecting the performance of SI cancellation is the variable SI channel. To solve this problem, the sparsity of the SI channel is estimated with the estimation of the weight vector at each iteration, and it is used to adjust the weight vector. Then, the convergence performance and calculation complexity are analyzed theoretically. Simulation results indicate that the proposed algorithm has better performance than the referenced algorithms.

Transmission of Ultrasonic Waves Via Optical Silica Glass Fiber Doped by 7.5% of TiO2 with the Use of Power Sandwich Transducer

2011 ◽  
Vol 36 (1) ◽  
pp. 141-150 ◽  
Author(s):  
Sylwia Muc ◽  
Tadeusz Gudra
Keyword(s):  
Optical Fibre ◽  
Output Signal ◽  
Optical Waveguides ◽  
Experimental Studies ◽  
Signal Amplitude ◽  
Capacitive Sensor ◽  
Ultrasonic Waves ◽  
Sandwich Type ◽  
Type Transducer ◽  
Simultaneous Transmission

Abstract The possibility of acoustic wave propagation in optical waveguides creates new prospects for simultaneous transmission of laser beams and ultrasonic waves. Combined laser-ultrasonic technology could be useful in e.g. surgical treatment. The article presents the results of experimental studies of transmission of ultrasonic wave in optical fibres, the core of which is doped by 7.5% of TiO2, using a sandwich-type transducer. It also presents amplitude characteristics of an ultrasonic signal propagated in the optical fibre. Authors studied the effect which the length of the fibre has on the achieved output signal amplitudes. They presented the relation of the output signal amplitude from a capacitive sensor to the power applied to the sandwich-type transducer. The obtained results were compared with the results produced when using an optical fibre with a core doped by 3% of GeO2, in order to select optical fibre suitable for simultaneous transmission of ultrasonic waves and laser rays.

Adaptive Weighted Sensing With Simultaneous Transmission for Dynamic Primary User Traffic

2017 ◽  
Vol 65 (3) ◽  
pp. 992-1004 ◽  
Author(s):  
Min Deng ◽  
Bin-Jie Hu ◽  
Xiaohuan Li
Keyword(s):  
Primary User ◽  
Simultaneous Transmission

Investigation of approaches to reduce truncation of attenuation maps with simultaneous transmission and emission SPECT imaging

1998 ◽  
Vol 45 (3) ◽  
pp. 1200-1206 ◽  
Author(s):  
M.V. Narayanan ◽  
M.A. King ◽  
Tin-Su Pan ◽  
S.T. Dahlberg
Keyword(s):  
Spect Imaging ◽  
Simultaneous Transmission

The benefits from simultaneous transmission and reception in wireless networks

2010 ◽  
Author(s):  
P. C. Weeraddana ◽  
M. Codreanu ◽  
M. Latva-aho ◽  
A. Ephremides
Keyword(s):  
Wireless Networks ◽  
Simultaneous Transmission

Simultaneous Transmission of Two Languages on Television

1972 ◽  
Vol 18 (7) ◽  
pp. 313-319
Author(s):  
N. N. Mohanty
Keyword(s):  
Simultaneous Transmission
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