Results 31 to 40 of about 47,813 (288)

Joint Channel, Carrier-Frequency-Offset and Noise-Variance Estimation for OFDM Systems Based on Expectation Maximization [PDF]

open access: yes, 2010
In this paper, a joint channel, carrier-frequency-offset (CFO) and noise-variance estimation scheme is proposed for OFDM systems which is based on Expectation and Maximization (EM) algorithm.
Xiaomin Mu   +5 more
core   +1 more source

Linear Offset-Free Model Predictive Control in the Dynamic PLS Framework

open access: yesInformation, 2018
This work addresses the model predictive control (MPC) of the offset-free tracking problem in the dynamic partial least square (DyPLS) framework. Firstly, state space MPC based on the DyPLS is proposed.
Ligang Hou, Ze Wu, Xin Jin, Yue Wang
doaj   +1 more source

Retrieving the Kinematic Process of Repeated-Mining-Induced Landslides by Fusing SAR/InSAR Displacement, Logistic Model, and Probability Integral Method

open access: yesRemote Sensing, 2023
The extraction of underground minerals in hilly regions is highly susceptible to landslides, which requires the application of InSAR techniques to monitor the surface displacement.
Hengyi Chen   +5 more
doaj   +1 more source

Research on tracking method of moving object under the dynamic background [PDF]

open access: yesITM Web of Conferences, 2022
In order to solve the problem that the traditional moving target tracking algorithm is vulnerable to interference and difficult to accurately track the target for a long time, we first introduce the common target tracking algorithm under the dynamic ...
Wang Jie, He Xin, Yu Jiahui, Wang Jianyu
doaj   +1 more source

Validation for Ice Flow Velocity Variations of Shirase Glacier Derived From PALSAR-2 Offset Tracking

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
We have shown that the flow velocity of Shirase Glacier can be estimated by applying the offset tracking method to the amplitude images derived from the phased array type L-band synthetic aperture radar type-2 (PALSAR-2) onboard the Advanced Land ...
Kazuki Nakamura   +4 more
doaj   +1 more source

Frequency synchronization and phase offset tracking in a real-time 60-GHz CS-OFDM MIMO system

open access: yes, 2022
S.2281-2286The performance of an Orthogonal Frequency-Division-Multiplexing (OFDM)-based 60-GHz system can be strongly degraded due to carrier frequency impairment and Phase Noise (PN).
Kortke, A., Koschel, L.
core   +1 more source

A Seam Tracking Method Based on an Image Segmentation Deep Convolutional Neural Network

open access: yesMetals, 2022
Vision-based welding seam tracking is an important and unique branch of welding automation. Active vision seam tracking systems achieve accurate feature extraction by using an auxiliary light source, but this will introduce extra costs and the real-time ...
Jun Lu   +5 more
doaj   +1 more source

Identification and determination of avalanche speed by using radar interferometry –A case study in Varangah Rud at Chalous Road, Iran [PDF]

open access: yesSustainable Earth Trends, 2021
Avalanche is one of the natural disasters that annually inflicts heavy casualties on human societies, especially the world's transportation systems, especially in mountainous areas. The use of remote sensing and radar interference knowledge is one of the
Abolghasem Goorabi   +1 more
doaj   +1 more source

Capturing the crack process of the Antarctic A74 iceberg with Sentinel-1 based offset tracking and radar interferometry techniques

open access: yesInternational Journal of Digital Earth, 2022
In this paper, the crack process of the A74 iceberg is carefully monitored in different aspects by using synthetic aperture radar (SAR) images. First, a offset tracking strategy is designed to retrieve the temporal evolution of the glacier velocity field.
Zimu Li, Qingliang Wu
doaj   +1 more source

The dynamics of Trooz Glacier, Antarctic Peninsula, by satellite remote sensing data

open access: yesУкраїнський антарктичний журнал, 2023
The paper studies the ice cover of the Trooz Glacier, Kyiv Peninsula, West Antarctic Peninsula. The main goal of the work is to study the velocity dynamics of various parts of the Trooz Glacier in 2016–2022 based on remote sensing data and to compare ...
S. Kadurin, V. Kadurin
doaj   +1 more source

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