Results 31 to 40 of about 177,367 (306)
Stimulus representation and the timing of reward-prediction errors in models of the dopamine system [PDF]
, 2008 The phasic firing of dopamine neurons has been theorized to encode a reward-prediction error as formalized by the temporal-difference (TD) algorithm in reinforcement learning.
Sutton, Richard S. +2 more
core +1 more source
Improving Indoor Positioning With Adaptive Noise Modeling
IEEE Access, 2020 Indoor positioning is important for applications within Internet of Things, such as equipment tracking and indoor maps. Inexpensive Bluetooth-beacons have become common for such applications, where the distance is estimated using the Received Signal ...
Jimmy Engstrom
doaj +1 more source
Partial CRC-assisted error correction of AIS signals received by satellite
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014 This paper deals with the demodulation of automatic identification system (AIS) signals received by a satellite. More precisely, an error correction algorithm is presented, whose computational complexity is reduced with respect to that of a previously considered approach.
Prévost, Raoul +5 more
openaire +2 more sources
Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors [PDF]
, 2010 The TanDEM-X mission, result of the partnership between the German Aerospace Center (DLR) and Astrium GmbH, opens a new era in spaceborne radar remote sensing. The first bistatic satellite synthetic aperture radar mission is formed by flying the TanDEM-
Fiedler, Hauke +3 more
core +1 more source
Tongxin xuebao, 2021 Aiming at the problem of inaccurate calibration of the array gain and phase errors caused by the signal source coherence in the multipath environment, a combination of time reversal (TR) and principal component analysis (PCA) calibration algorithm was ...
Fangwei LI, Jiawen LU, Mingyue WANG
doaj +2 more sources
Analysis of The Relationship Between Received Signal Strength and Displacement [PDF]
, 2009 Currently, outdoor localization can be done using a GPS device which obtains positions from satellites. However GPS signals are not available in indoor environments. We can precisely measure signal levels on the devices in a wireless sensor network (WSN).
Sangsiriyakul, Surat
core +1 more source
14-bit 2.2-MS/s sigma-delta ADC's [PDF]
, 2000 This paper presents the design and test results of a fourth-order and sixth-order 14-bit 2.2-MS/s sigma-delta analog-to-digital converter (ADC). The analog modulator and digital decimator sections were implemented in a 0.35 μm CMOS double-poly triple ...
Hoke, M +3 more
core +1 more source
A Satellite Link-Like Bit Error Model Based on the Received Signal Level for Link Simulator's Error Implementation [PDF]
A Satellite Link-Like Bit Error Model Based on the Received Signal Level for Link Simulator's Error ImplementationThis paper proposes the bit error generation algorithm based on data from experiments. According to the rain intensity, it uses the received signal, the coefficient of variation and the variation of the coefficient of variation during its processing stage. The generated and raw bit errors are compared. The proposed algorithm is an important element for
Franklin, Fondjo F. +9 more
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A Lamb Wave Wavenumber-Searching Method for a Linear PZT Sensor Array
Sensors, 2019 In this paper, a wavenumber−searching method based on time-domain compensation is proposed to obtain the wavenumber of the Lamb wave array received signal.
Bin Liu, Tingzhang Liu, Jianfei Zhao
doaj +1 more source
Fore and Aft Channel Reconstruction in the TerraSAR-X Dual Receive Antenna Mode [PDF]
, 2010 The TerraSAR-X satellite is a high resolution synthetic aperture radar (SAR) system launched in June 2007 which provides the option to split the antenna in along-track direction and sample two physical channels separately.
Schulze, Daniel +5 more
core +1 more source