Stephen Hawking’s life was full of extraordinary achievements. He changed the way we understand black holes, revolutionized the study of cosmology, and wrote bestselling books, all while battling amyotrophic lateral sclerosis. However, a chapter in Hawking’s story which few may be aware of is ...
In modulus-argument form, Z is shaped by the amplitude |Z|=(X2+Y2)12, and the SLC phase ψ=atanYX, (ψ∈(-π,+π]), depicted in Fig. 1a). Download: Download high-res image (184KB) Download: Download full-size image Fig. 1. a) an Argand diagram of a complex number. ...
(29) The exact transfer function multiplication has the effect of canceling the phase at the reference range, which can achieve the full focus of the targets in the range. However, since SAR echo data is dependent on the variability of the range, there exists azimuth residual phase at the ...
These two satellites can be combined to provide full coverage of the surface of the earth every five-day interval. This study selected Sentinel-1 IW images and Sentinel-2 Level-2A surface reflectance images (bottom-of-atmosphere) as SAR and optical data sources, respectively. Sentinel-1 images...
They were collected using an X-band SAR sensor, in a one feet resolution spotlight mode, with full aspect coverage. Each image has a size of around 128 by 128. The images are already centered with 0 °C to 360 °C degrees Sensors 2018, 18, 3218 11 of 18 Table 1. The architecture ...
Therefore, to make full use of the wealth of multiple temporal PolSAR data, the dimension reduction in resulting features is indispensable and crucial. In the past few years, the methods of auto-encoder and sparse auto-encoder have attracted more and more attention, which were commonly used to...
sensors Article Azimuth Full-Aperture Processing of Spaceborne Squint SAR Data with Block Varying PRF Zhuo Zhang 1,2, Wei Xu 1,2,* , Pingping Huang 1,2 , Weixian Tan 1,2 , Zhiqi Gao 1,2 and Yaolong Qi 1,2 1 College of Information Engineering, Inner Mongolia University of Technology,...
Electronics 2019, 8, 1025 16 of 18 Abbreviations Abbreviation Full form AUTOSAR AUTomotive Open System ARchitecture ADAS Advanced driver-assistance systems OSEK Open Systems and their Interfaces for the Electronics in Motor Vehicles VDX Vehicle Distributed eXecutive OEM original equipment manufacturer ECU ...
In the following, CI-SIM is introduced in full- and under-sampling cases, respectively [23]. 2.1.2. Fully Sampled Data For the fully sampled data, Ha and Hr are both identical matrices. After performing the imaging operator on I (·) for Equation (7), we have [32] I (Y) = I(...