Results 121 to 130 of about 9,877,522 (229)

Robust Short‐Term Forecasting of Thermospheric Density and Orbit Prediction Using an Interpretable iTransformer Model

open access: yesSpace Weather, Volume 24, Issue 9, September 2026.
Abstract Accurate short‐term forecasting of thermospheric mass density is crucial for satellite operations. However, achieving high‐precision predictions remains a significant challenge. In this study, we develop an iTransformer framework that forecasts thermospheric density over the next 24 hr using observations from the preceding 24 hr. Using density
Mingyi Zhang   +7 more
wiley   +1 more source

An Orthogonal Waveform Scheme for Imaging MIMO-Radar Applications [PDF]

open access: yes, 2013
Synthetic Aperture Radar (SAR) based on Digital Beamforming (DBF) belongs to the family of Multi-Modal Radar Systems (MMRSs) which offer higher operational flexibility and improved performance compared to conventional radar systems using analog beam ...
Patyuchenko, Anton   +4 more
core  

Energy Sharing and Performance Bounds in MIMO DFRC Systems: A Trade-Off Analysis

open access: yesIET Signal Processing
It is a fundamental problem to analyze the performance bound of multiple-input multiple-output dual-functional radar-communication systems. To this end, we derive a performance bound on the communication function under a constraint on radar performance ...
Ziheng Zheng   +4 more
doaj   +1 more source

Target models and waveform design for detection in MIMO radar

open access: yes, 2014
In this paper, we propose a general target model for multiple-input multiple-output (MIMO) radar. Two types of targets are presented. For each type of target, we develop a corresponding optimum waveform designing method to optimize detection performance.
Tang J(汤俊)   +3 more
core  

Digital Beamforming: A Paradigm Shift for Spaceborne SAR [PDF]

open access: yes, 2013
Spaceborne Synthetic Aperture Radar (SAR) provides high-resolution, day-and-night and weather-independent images for a multitude of applications ranging from geoscience and climate change research, environmental monitoring, global 2-D and 3-D mapping ...
Moreira, Alberto
core  

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