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Non-steady-state photoelectromotive force effect under linear and periodical phase modulation: application to detection of Doppler frequency shift [PDF]

open access: yesOptics Letters, 2012
Non-steady-state photoelectromotive force effect in the presence of periodical and linear phase shift was investigated both theoretically and experimentally.
Klaus Meerholz, Svetlana Mansurova
exaly   +1 more source
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Passive localization from Doppler shifted frequency measurements

[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing, 1991
An efficient search scheme for an underwater radiating source is developed by introducing intermediate variables which are products of some of the unknowns. The search dimension is only two, in x-y position, instead of five. The resultant intermediate equations become linear and are easier to solve; the major calculation at each grid point requires an ...
Yiu Tong Chan, J. J. Towers
openaire   +3 more sources

Doppler frequency shift estimation for differentially coherent CPM

IEEE Transactions on Communications, 1990
A communication scheme based on continuous-phase modulated (CPM) signals used in conjunction with trellis-coded modulation (TCM) is considered. To keep the complexity manageable, a detection scheme based on differential detection of CPM signals is used.
Ezio Biglieri   +2 more
openaire   +1 more source

Adaptive Doppler frequency shift estimation for OFDM systems

2012 International Conference on Wireless Communications and Signal Processing (WCSP), 2012
Orthogonal Frequency Division Multiplexing (OFDM) is sensitive to the system frequency offset, while in high speed movement Doppler frequency shift is the main factor which causes the system frequency offset and result in inter-carrier interference (ICI) and degrade system performance.
Qinghua Tian   +3 more
openaire   +2 more sources

Localization by Doppler Derivatives and Doppler-Shifted Frequencies

IEEE Transactions on Signal Processing
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaochuan Ke, K. C. Ho 0001
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Prediction of Wind Turbine's Doppler Frequency Shifts

2020 New Trends in Signal Processing (NTSP), 2020
This article deals with the prediction of the dominant Doppler frequency shifts of the wind turbine blades. Spread-spectrum of the Doppler frequency shifts of wind turbine blades can mask the radar targets. Current filtering methods are designed to filter only the complete radar resolution cells in places where wind turbines are located. However, these
Karel Juryca   +2 more
openaire   +1 more source

Parameter Estimation Based on Doppler Frequency Shifts

IEEE Transactions on Aerospace and Electronic Systems, 1987
An acoustic source generates an amplitude-modulated tone, with Doppler variations due to the relative motion between source andreceiver. A method is presented for real-time estimation of tone restfrequency and minimal distance between source and receiver, usingdigital signal processing techniques.
Joseph Statman, Eugene Rodemich
openaire   +1 more source

Initial Satellite Access Authentication Based on Doppler Frequency Shift

IEEE Wireless Communications Letters, 2021
The future mobile system shall be able to support satellite access to provide an ubiquitous wireless connection service. Satellite communication is vulnerable to spoofing attacks due to the open nature of wireless channels, especially for the downlink satellite system information signalling (SIS) which has not been authenticated yet before initial ...
Qing-Yi Fu   +3 more
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CANCELLATION OF DOPPLER FREQUENCY SHIFT

1963
Abstract : A circuit is described which is capable of canceling first-order Doppler frequency shifts. It has potentialities in the fields of communication, data transmission, and navigation systems for vehicles moving at high velocities. The circuit has the following features: (1) Received and transmitted frequencies at each of the stations involved ...
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Doppler frequency shift in a refractive atmosphere

Journal of Aircraft, 1987
A general derivation is given for the Doppler-shifted received frequency due to source and receiver motion of uniform velocity in a steady-state, refractive medium with spatial gradients in velocity and temperature. The results from three cases of this generalized equation are especially important.
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