Results 21 to 30 of about 103,059 (283)
Optimal waveform design for UWB radios [PDF]
IEEE Transactions on Signal Processing, 2004 With transmit power spectra strictly limited by regulatory spectral masks, the emerging ultra-wideband (UWB) communication systems call for judicious pulse shape design in order to achieve optimal spectrum utilization, spectral mask compatibility, and coexistence with other wireless services.
Xianren Wu +3 more
openaire +1 more source
Dynamic Optimization Method for Broadband ADCP Waveform with Environment Constraints
Sensors, 2021 Broadband acoustic Doppler current profiler (ADCP) is widely used in agricultural water resource explorations, such as river discharge monitoring and flood warning.
Yongshou Yang, Shiliang Fang
doaj +1 more source
Generalized Fast-Convolution-based Filtered-OFDM: Techniques and Application to 5G New Radio [PDF]
, 2020 This paper proposes a generalized model and methods for fast-convolution (FC)-based waveform generation and processing with specific applications to fifth generation new radio (5G-NR).
Levanen, Toni +4 more
core +3 more sources
Time Reversal Detection for Moving Targets in Clutter Environments
Remote Sensing, 2023 Moving target detection plays a pivotal role in many applications, especially in radar systems. In addition, time-reversal (TR) technology can improve radar detection probability by effectively solving the problem of multipath signals. However, detection
Hao Lian +4 more
doaj +1 more source
Benefits of Waveform Relaxation Method and Output Space Mapping for the Optimization of Multirate Systems [PDF]
, 2014 We present an optimization problem that requires to model a multirate system, composed of subsystems with different time constants. We use waveform relaxation method in order to simulate such a system.
BRISSET, Stéphane +3 more
core +7 more sources
A Survey of Collocated MIMO Radar
Leida xuebao, 2022 As a novel radar system, the Multiple-Input Multiple-Output (MIMO) radar with waveform diversity has demonstrated excellent performance in several aspects, including target detection, parameter estimation, radio frequency stealth, and anti-jamming ...
Zishu HE +6 more
doaj +1 more source
Modelling arterial pressure waveforms using Gaussian functions and two-stage particle swarm optimizer [PDF]
, 2014 Changes of arterial pressure waveform characteristics have been accepted as risk indicators of cardiovascular diseases. Waveform modelling using Gaussian functions has been used to decompose arterial pressure pulses into different numbers of subwaves and
Chang, Faliang +7 more
core +4 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 ...
Nicholas Moehle, Stephen P. Boyd
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Optimal Correlators and Waveforms for Mismatched Detection
IEEE Transactions on Information Theory, 2022 We consider the classical Neymann-Pearson hypothesis testing problem of signal detection, where under the null hypothesis ($\calH_0$), the received signal is white Gaussian noise, and under the alternative hypothesis ($\calH_1$), the received signal includes also an additional non-Gaussian random signal, which in turn can be viewed as a deterministic ...
openaire +2 more sources
Programmable optical waveform reshaping on a picosecond timescale [PDF]
, 2017 We experimentally demonstrate temporal reshaping of optical waveforms in the telecom wavelength band using the principle of quantum frequency conversion. The reshaped optical pulses do not undergo any wavelength translation.
Jain, Nitin +3 more
core +2 more sources