Results 11 to 20 of about 329,290 (236)

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

open access: yesSensors
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   +3 more
doaj   +2 more sources

Passive Radar Imaging of Moving Targets Using WiFi Signals

open access: yesLeida xuebao, 2015
In recent years, the wireless local networks are constructed rapidly and their coverage greatly increase. The passive radar imaging of moving targets using WiFi signals is studied in this paper, which may lead to wider applications of passive radars ...
Zhuang Xu-sheng   +3 more
doaj   +1 more source

An integrated single-shot spectrometer with large bandwidth-resolution ratio and wide operation temperature range

open access: yesPhotoniX, 2023
There has been a rapidly growing demand for low-cost, integrated single-shot spectrometers to be embedded in portable intelligent devices. Even though significant progress has been made in this area, two major problems are still remaining, namely the ...
Ang Li   +6 more
doaj   +1 more source

Region-enhanced passive radar imaging [PDF]

open access: yes, 2005
The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat   +2 more
core   +1 more source

How Much Depth Information can Radar Contribute to a Depth Estimation Model? [PDF]

open access: yes, 2022
Recently, several works have proposed fusing radar data as an additional perceptual signal into monocular depth estimation models because radar data is robust against varying light and weather conditions. Although improved performances were reported in prior works, it is still hard to tell how much depth information radar can contribute to a depth ...
arxiv   +1 more source

Through Wall Imaging Radar Antenna with a Focus on Opening New Research Avenues [PDF]

open access: yes, 2021
This review paper is an effort to develop insight into the development in antennas for through wall imaging radar application. Review on literature on antennas for use in through wall imaging radar, fulfilling one or more requirements/specifications such
Raha, Krishnendu, Ray, K. P.
core   +2 more sources

Hyper-parameter selection in non-quadratic regularization-based radar image formation [PDF]

open access: yes, 2008
We consider the problem of automatic parameter selection in regularization-based radar image formation techniques. It has previously been shown that non-quadratic regularization produces feature-enhanced radar images; can yield superresolution; is ...
Batu, Ozge   +3 more
core   +1 more source

Anti-Error Robust Pattern Synthesis Algorithm in Time-Modulated Array Antenna

open access: yesIEEE Access, 2022
Compared with the traditional antenna array, the time-modulated array can increase the flexibility of the array by adding time switches. However, due to the introduction of time switches, the time-modulated array antenna is more sensitive to random ...
Yuanjin Tian   +5 more
doaj   +1 more source

Joint Transmit Resources and Trajectory Planning for Target Tracking in Airborne Radar Networks

open access: yesLeida xuebao, 2022
This paper investigates the joint optimization problem of transmit resources and trajectory planning for target tracking in airborne radar networks. First, the analytical expression for the Bayesian Cramér-Rao Lower Bound (BCRLB) with the variables of ...
Chenguang SHI   +3 more
doaj   +1 more source

Design and Implementation of a FPGA and DSP Based MIMO Radar Imaging System [PDF]

open access: yes, 2015
The work presented in this paper is aimed at the implementation of a real-time multiple-input multiple-output (MIMO) imaging radar used for area surveillance.
Dong Liang   +4 more
core   +2 more sources

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