Results 31 to 40 of about 2,159,458 (286)

A review of demodulation techniques for amplitude-modulation atomic force microscopy

Beilstein Journal of Nanotechnology, 2017
In this review paper, traditional and novel demodulation methods applicable to amplitude-modulation atomic force microscopy are implemented on a widely used digital processing system.
Michael G. Ruppert, David M. Harcombe, Michael R. P. Ragazzon, S. O. Reza Moheimani, Andrew J. Fleming   +4 more
doaj   +1 more source

Micro-motion feature extraction of space targets based on sinusoidal frequency modulation Fourier transform

The Journal of Engineering, 2019
The space target can be discriminated from other objects by the micro-motion feature difference. The micro-motion features of a space target with precession include the spinning period, the precession angle and the precession period etc. The main work of
Jian Hu, Ying Luo, Qun Zhang, Xiaowen Liu, Xiaoyu Qu   +4 more
doaj   +1 more source

Error Resilient Quantum Amplitude Estimation from Parallel Quantum Phase Estimation [PDF]

, 2022
We show how phase and amplitude estimation algorithms can be parallelized. This can reduce the gate depth of the quantum circuits to that of a single Grover operator with a small overhead.
Decker, T., Hegemann, N., Braun, M. C., Kerstan, S. F.   +3 more
core   +1 more source

Amplitude-frequency characteristics.

, 2022
Amplitude-frequency characteristics.
Lei Xu (78676), Yongkang Li (12152896), Shanfeng Gao (12152893), Jiwen Ji (12152899)   +3 more
core   +1 more source

A Frequency/Phase/Amplitude Estimator for Three-Phase Applications Operating at a Low Sampling Rate

Mathematics
A frequency/phase/amplitude estimator is arguably one of the most crucial components in the control and synchronization of grid-connected equipment. Such an estimator may also be useful for monitoring and protection purposes in power systems.
Abdullah M. Abusorrah, Hamed Sepahvand
doaj   +1 more source

Low-depth amplitude estimation on a trapped-ion quantum computer

Physical Review Research, 2022
Amplitude estimation (AE) is a fundamental quantum algorithmic primitive that enables quantum computers to achieve quadratic speedups for a large class of statistical estimation problems, including Monte Carlo methods.
Tudor Giurgica-Tiron, Sonika Johri, Iordanis Kerenidis, Jason Nguyen, Neal Pisenti, Anupam Prakash, Ksenia Sosnova, Ken Wright, William Zeng   +8 more
doaj   +1 more source

Adaptive minimum symbol error rate beamforming assisted detection for quadrature amplitude modulation

, 2008
—We consider beamforming assisted detection for multiple antenna aided multiuser systems that employ the bandwidth efficient quadrature amplitude modulation scheme.
Chen, Sheng, Livingstone, A., Hanzo, Lajos, Du, H.-Q.   +3 more
core   +1 more source

Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems

, 2010
A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna arrays elements, are first ...
Chen, Sheng, Hanzo, Lajos, Yao, Wang
core   +2 more sources

Contribution of Jitter and Phase Noise to the Precision of Sinusoidal Amplitude Estimation Using Coherent Sampling

Sci
Estimating the amplitude of a sinewave from a set of data points is a common procedure in various applications. This is typically achieved using a least squares method that provides closed-form estimators. The sampling process itself is often affected by
Francisco A. C. Alegria
doaj   +1 more source

Amplitude Scale Estimation for Quantization-Based Watermarking [PDF]

IEEE Transactions on Signal Processing, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ivo D. Shterev, Reginald L. Lagendijk
openaire   +2 more sources