time reversal
Prospects for a New Account of Time Reversal
... that time reversal operators in one theory can act as a constraint on the proper time reversal operator of another ...what time reversal should generally look like, but we must ...
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Microwave Time-Reversal Mirror for Imaging and Hyperthermia Treatment of Breast Tumors
... applications [16]. However, constraints such as requirement of weakly contrasting, bounded target and circular measurements enclosing the target and diffraction limited resolution limit their application [17]. The biggest ...
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Exploring the potentials and limitations of the time-reversal imaging of finite seismic sources
... (1) Time-reversal imaging is well-suited to infer both the location and the timing of point ...(2) Time- reversal imaging in the used frequency range is not able to detect the details of ...
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Applying Time-Reversal Technique for MU MIMO UWB Communication Systems
... Therefore, in UWB TR systems, first of all, intended users will send an impulse to Base Station (BS), the received signal form at BS is CIRs form of that environment. When the BS received CIRs information from the users, ...
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Multi user time reversal STC GFDMA for future wireless networks
... BS, base station; CIR, channel impulse response; CP, cyclic prefix; CS, cyclic suffix; CSI, channel state information; DFT, discrete Fourier transform; EPA, Extended Pedestrian A; FDE, frequency domain equalization; ...
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The detection of flaws in austenitic welds using the decomposition of the time reversal operator
... The non-destructive testing of austenitic welds using ultrasound plays an important role in the assessment of the structural integrity of safety critical structures. The internal microstructure of these welds is highly ...
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Single-Antenna Time-Reversal Imaging Based on Independent Component Analysis
... In this paper, we have introduced a new time reversal imaging method which is based on the independent component analysis (ICA) for decomposing mixed signals back scattered from targets. We have done ...
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Input Signal Recovering Using Regular Time Reversal And Inverse Filtering
... the time reversal method to Lamb wave propagation is investigated in order to recover the initial input signal in the long distance propagation of dispersive lamb waves ...which time arrival and ...
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Time-reversal Based Array Damage Imaging in Structural Health Monitoring.
... migration (E-CCRTM) techniques. The proposed damage imaging technique takes into account the amplitude, phase, and all the frequency content of the Lamb waves propagating in the plate; thus, the severity of multiple ...
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Implementation Of Acoustics Based Time Reversal Mirrors For Source Localization
... by time reversal algorithm to the transducer array are uniformly retransmitted from the ...that time, the localization pointer was moved to the transducer array from the detected source because of ...
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Performance of time reversal precoding technique for MISO OFDM systems
... Time reversal (TR) is considered as a promising technique for green and multi-user communications thanks to its time and space focusing properties. TR can be viewed as a precoding scheme which can be ...
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A SIMO one bit time reversal for UWB communication systems
... comprising of a single antenna and received by multiple antennas. The transceiver structure is based on spatial focusing property of OTR-UWB system. One-bit TR retains the spatial property of classic time ...
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Successive interference cancellation schemes for time-reversal space-time block codes
... as time reversal [8], orthogonal fre- quency division multiplexing (OFDM) [9], [10], and single-carrier frequency-domain equalization [11]–[13] can be combined to combat ...for time-reversal ...
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Time Reversal UWB Communication System: A Novel Modulation Scheme with Experimental Validation
... Copyright © 2010 I. H. Naqvi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
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Design real-time reversal of tumor multidrug resistance cleverly with shortened carbon nanotubes
... as reversal agent and chemotherapeutic drug doxorubi- cin (Dox), were co-loaded on shortened CNTs at the same time as a new vehicle to overcome tumor ...real-time reversal ability and the ...
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Blind adaptive equalizer for broadband MIMO time reversal STBC based on PDF fitting
... Single-carrier time domain approaches were first proposed by [4], whereby the STBC structure was ap- plied to a window of symbols, which is, after a guard in- terval, repeated as a complex conjugate and ...
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Spatial Focusing Characteristics of Time Reversal UWB Pulse Transmission with Different Antenna Arrays
... Recently, time reversal (TR) UWB communication has received much attention because the propagation of TR UWB electromagnetic waves can obtain spatial focusing and time compression characteristics ...
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Gaussian Target Detection in Multipath Clutter with Single Antenna Time Reversal by Improving SNR
... the time reversal likelihood ratio optimal detector for a target in stationary random multipath ...the time reversal detector by approximating it with the Time Reversal Linear ...
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1 Retrocausal Quantum Effects from Broken Time Reversal Symmetry 2 3
... Retrocausal Quantum Effects from Broken Time Reversal Symmetry4. 2 35[r] ...
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Damage Diagnosis using Time-reversal Tomography Technique in Structural Health Monitoring.
... a time-reversal process. The proposed time-reversal tomography method can reduce the computation cost significantly compared with the traditional diffraction ...the time-reversal ...
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