Results 71 to 80 of about 49,521 (293)
Radar marine maneuvering target detection via high resolution sparse fractional ambiguity function
Tongxin xuebao, 2019 To solve the problem of fast detection of high maneuvering targets in complex ocean background,a radar target detection algorithm via sparse fractional ambiguity function (SFRAF) was proposed.The sparse Fourier transform (SFT) was introduced after ...
Xiaohan YU +3 more
doaj +2 more sources
Consideration of radar target glint from ST during OMV rendezvous [PDF]
The nature of radar target glint and the factors upon which it depends when using the Hubble Space Telescope as a radar target is discussed. An analysis of the glint problem using a 35 MHz or 94 MHz radar on the orbital maneuvering vehicle is explored. A
Gleason, E. H. +2 more
core +1 more source
Skylab experiments. Volume 6: Mechanics [PDF]
, 1973 Skylab program activities are presented in a form adapted to instruction of high school students. The overall goals of the program are discussed. The specific accomplishments of the mechanics investigations are described.
core +1 more source
Controlled Tracking in Urban Terrain: Closing the Loop
, 2018 We investigate the challenging problem of integrating detection, signal processing, target tracking, and adaptive waveform scheduling with lookahead in urban terrain.
Barbosa, Patricia R. +5 more
core +1 more source
3D‐Nanoprinted Fluidically Steerable Soft Robotic Microcatheters
Advanced Robotics Research, EarlyView.This work introduces a ∼3‐French (1 mm‐in‐diameter) soft robotic microcatheter fabricated by means of two‐photon direct laser writing. The 3D‐printed microcatheter enables remote, on‐demand steering via microfluidic actuation for guidewire‐free navigation of vascular networks as well as microcatheter‐mediated delivery of fluidic payloads to target ...
Bailey M. Felix +17 more
wiley +1 more source
Leida xuebao, 2013 The approach of tracking maneuvering targets based on the “Current” Statistical (CS) model is widely used. The method needs to preset maneuvering frequency and maximum acceleration based on experience.
Qian Guang-hua +2 more
doaj +1 more source
Rendezvous radar for the orbital maneuvering vehicle [PDF]
The Rendezvous Radar Set (RRS) was designed at Motorola's Strategic Electronics Division in Chandler, Arizona, to be a key subsystem aboard NASA's Orbital Maneuvering Vehicle (OMV).
Locke, John W. +2 more
core +1 more source
FiN‐Kiri: Fabric‐Based Inflatable Kirigami Actuator for Multimodal Soft Robots
Advanced Robotics Research, EarlyView.This study introduces a type of inflatable fabric‐based kirigami actuator capable of performing bending motion. The actuator is utilized as soft grippers, a crawling robot and a swimming robot. The crawling robot demonstrated extraordinary motion capabilities, such as moving forward, turning and navigating a narrow tunnel.
Yang Yu +12 more
wiley +1 more source
ISAR Imaging of Maneuvering Targets Based on the Modified Discrete Polynomial-Phase Transform
Sensors, 2015 Inverse synthetic aperture radar (ISAR) imaging of a maneuvering target is a challenging task in the field of radar signal processing. The azimuth echo can be characterized as a multi-component polynomial phase signal (PPS) after the translational ...
Yong Wang +3 more
doaj +1 more source
Study of Free‐Space Optical Quantum Network: Review and Prospectives
Advanced Science, EarlyView.Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley +1 more source