Results 111 to 120 of about 260,315 (307)

Robust and Thermally Stable Silicone Aerogels with Hyperconnected Network via Kinetically Optimized Hyperbranched Silane Precursors

Advanced Science, EarlyView.
Reactivity‐Programmed Assembly: A kinetic‐control strategy is reported for constructing hyperconnected silicone aerogels with a robust “thick‐neck” architecture. By exploiting the reactivity disparity of precursors, flexible segments are uniformly embedded within a rigid skeleton.
Aoqing Yan, Guixiang Li, Yaolan Li, Yi Luo, Bin Liu, Zhe Su, Hao Tian, Wei Shi, Bo Niu, Donghui Long   +9 more
wiley   +1 more source

Desain, simulasi dan analisis peningkatan range resolution sistem radar FMCW

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2016
Range resolution sebagai salah satu parameter sistem radar menjadi sangat penting dan perlu ditingkatkan untuk memberikan informasi jarak target yang akurat.  Peningkatan bandwidth dapat dilakukan namun terbatas pada perangkat Direct Digital ...
mohamad ansori, Sholeh Hadi Pramono, Muhammad Aziz Muslim   +2 more
doaj   +1 more source

Polynomial driven time base and PN generator [PDF]

In support of the planetary radar upgrade new hardware was designed to increase resolution and take advantage of new technology. Included is a description of the Polynomial Driven Time Base and PN Generator which is used for range gate coding in the ...
Brokl, S. S.
core   +1 more source

Effects of pulse width and coding on radar returns from clear air [PDF]

, 1983
In atmospheric radar studies it is desired to obtain maximum information about the atmosphere and to use efficiently the radar transmitter and processing hardware.
Cornish, C. R.
core   +1 more source

Nanocurvature‐Activated Dipolar Polarization in M–N4 Single‐Atom Sites for High‐Performance Electromagnetic Wave Absorption

Advanced Science, EarlyView.
Increasing nanocurvature effectively enriches the local electron density of the M–N4 motif, which facilitates electron transfer from the metal center to nitrogen atoms. This electronic behavior intensifies the localization and asymmetric distribution of charge, thereby significantly amplifying the dipole moment and polarizability.
Daohu Sheng, Siyao Cheng, Mengmeng Zhang, Jinglei Zhang, Xufei Zhu, Weijin Li, Bo Zhang, Aming Xie   +7 more
wiley   +1 more source

Array Radar Three-Dimensional Forward-Looking Imaging Algorithm Based on Two-Dimensional Super-Resolution

Sensors
Radar imaging is a technology that uses radar systems to generate target images. It transmits radio waves, receives the signal reflected back by the target, and realizes imaging by analyzing the target’s position, shape, and motion information. The three-
Jinke Dai, Weijie Sun, Xinrui Jiang, Di Wu   +3 more
doaj   +1 more source

Overview of on-line data processing for MST radars (keynote paper), part 7 [PDF]

The most important aspects of the processing of MST radar data are discussed. The important points of on-line data processing for MST radar are reviewed.
Farley, D. T.
core   +1 more source

Flexible IMU Sensor Array For 3D Colonoscope Shape Reconstruction and AI‐Based Loop Detection

Advanced Science, EarlyView.
We propose a sensing platform for 3D visualization of the colonoscope combined with artificial intelligence (AI)‐based loop detection. The system consists of an array of 15 inertial measurement units (IMUs) mounted on a flexible printed circuit board that can be retrofitted into the instrument channel of conventional colonoscopes.
Tuukka Panula, Anni Halkilahti, Andrei Ivanov, Matti Kaisti   +3 more
wiley   +1 more source

Radar Forward-Looking Super-Resolution Imaging Algorithm of ITR-DTV Based on Renyi Entropy

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Radar forward-looking super-resolution imaging is a hot spot in the field of radar imaging research. Restricted by Doppler bandwidth and platform size, traditional high-resolution synthetic aperture imaging and real aperture imaging are not suitable for ...
Min Bao, Zhenhao Jia, Xiaoning Yin, Mengdao Xing   +3 more
doaj   +1 more source

High Resolution Software Defined Radar System for Target Detection

Journal of Electrical and Computer Engineering, 2013
The Universal Software Radio Peripheral USRP NI2920, a software defined transceiver so far mainly used in Software Defined Radio applications, is adopted in this work to design a high resolution L-Band Software Defined Radar system.
S. Costanzo, F. Spadafora, A. Borgia, H. O. Moreno, A. Costanzo, G. Di Massa   +5 more
doaj   +1 more source