Results 41 to 50 of about 103,288 (249)
Full Waveform Inversion with Optimal Basis Functions [PDF]
Physical Review Letters, 2003 Based on the approach suggested by Tarantola, and Gauthier et al., we show that the alternate use of the step (linear) function basis and the block function (quasi-delta function) basis can give accurate full waveform inversion results for the layered acoustic systems, starting from a uniform background.
Sun, Gang, Chang, Qianshun, Sheng, Ping
openaire +3 more sources
Quantum optimal control without arbitrary waveform generators
Physical Review Applied, 2023 Simple, precise, and robust control is demanded for operating a large quantum information processor. However, existing routes to high-fidelity quantum control rely heavily on arbitrary waveform generators that are difficult to scale up. Here, we show that arbitrary control of a quantum system can be achieved by simply turning on and off the control ...
Chen, Qi Ming +3 more
openaire +4 more sources
Adaptive Waveform Design for Cognitive Radar in Multiple Targets Situations
Entropy, 2018 In this paper, the problem of cognitive radar (CR) waveform optimization design for target detection and estimation in multiple extended targets situations is investigated.
Xiaowen Zhang, Xingzhao Liu
doaj +1 more source
Power loss investigation in HVDC for cascaded H-bridge multilevel inverters (CHB-MLI) [PDF]
, 2015 In the last decade, the use of voltage-source multilevel inverters in industrial and utility power applications has been increased significantly mainly due to the many advantages of multilevel inverters, compared to conventional two level inverters ...
Alamri, B, Darwish, M
core +1 more source
Radar Constant-Modulus Waveform Design with Prior Information of the Extended Target and Clutter
Sensors, 2016 Radar waveform design is of great importance for radar system performances and has drawn considerable attention recently. Constant modulus is an important waveform design consideration, both from the point of view of hardware realization and to allow for
Wenzhen Yue +3 more
doaj +1 more source
Slow-Time MIMO Waveform Design Using Pulse-Agile-Phase-Coding for Range Ambiguity Mitigation
Remote Sensing, 2023 This paper proposed a Pulse-Agile-Phase-Coding slow-time MIMO (PAPC-st-MIMO) waveform, where the phase-coded signal is utilized as the intra-pulse modulation of the slow-time MIMO waveform.
Shaoqiang Chang +5 more
doaj +1 more source
Wideband Waveform Design for Robust Target Detection
, 2014 Future radar systems are expected to use waveforms of a high bandwidth, where the main advantage is an improved range resolution. In this paper, a technique to design robust wideband waveforms for a Multiple-Input-Single-Output system is developed.
Panahi, Ashkan +2 more
core +1 more source
Pareto-optimal radar waveform design
IET Radar, Sonar & Navigation, 2010 This paper deals with the problem of Pareto-optimal waveform design in the presence of colored Gaussian noise, under a similarity and an energy constraint. At the design stage, we determine the optimal radar code according to the following criterion: joint constrained maximization of the detection probability and constrained minimization of the Cramer ...
DE MAIO, ANTONIO +3 more
openaire +3 more sources
Optimal current waveforms for switched-reluctance motors [PDF]
2016 IEEE Conference on Control Applications (CCA), 2016 In this paper, we address the problem of finding current waveforms for a switched reluctance motor that minimize a user-defined combination of torque ripple and RMS current. The motor model we use is fairly general, and includes magnetic saturation, voltage and current limits, and highly coupled magnetics (and therefore, unconventional geometries and ...
Moehle, Nicholas, Boyd, Stephen
openaire +2 more sources
Research on Optimization Design Method of MIMO Radar Waveform Based on Frequency-Orthogonal LFM
IEEE AccessIn the field of Multiple Input Multiple Output(MIMO) radar waveform design, how to design an orthogonal waveform with high performance is one of the current hot topics. The Orthogonal Frequency Division Multiplexing - Linear Frequency Modulation(OFDM-LFM)
Xinrong Mao +3 more
doaj +1 more source