Results 11 to 20 of about 22,383 (198)

Reduction of sidelobe levels in multicarrier radar signals via the fusion of hill patterns and geometric progression

open access: yesETRI Journal, 2021
Multi‐carrier waveforms have several advantages over single‐carrier waveforms for radar communication. Employing multi‐carrier complementary phase‐coded (MCPC) waveforms in radar applications has recently attracted significant attention.
Channapatna Gopalkrishna Raghavendra   +2 more
doaj   +1 more source

The Determination of Effective Beamwidth of Ku Band Profiling Radar Based on Waveform Matching Method in the Boreal Forest of Finland

open access: yesRemote Sensing, 2020
Radar scientists typically define the radar beamwidth as a half-power beamwidth (HPBW) in the main lobe of the antenna pattern. However, the microwave radiations outside radar HPBW might also backscatter into the radar receiver and change the ...
Hui Zhou   +7 more
doaj   +1 more source

Dual source novel nine level inverter (DSN2LI) design with minimum active devices and inherent polarity generation

open access: yesIET Power Electronics, EarlyView., 2023
This article presents a dual‐source novel nine‐level inverter (DSN2LI) featuring minimal devices. Utilizing eight switches, which include 2 bidirectional switching devices and 2 uneven dc links, the proposed DSN2LI generates nine levels. The DSN2LI employs the utilization of trinary geometric DC links.
Arun Vijayakumar   +3 more
wiley   +1 more source

Adaptive optimization technology of segmented reconstruction signal based on genetic algorithm for enhancing radar jamming effect

open access: yesFrontiers in Physics, 2023
Given the improved capabilities of radar systems, addressing unfamiliar signals presents a challenge for radar jamming technology. To tackle this issue, this study proposes an adaptive technique for optimizing jamming waveforms to suppress multiple false
Yanqi Wang   +9 more
doaj   +1 more source

Recent Developments in Radar Waveforms (in English)

open access: yesLeida xuebao, 2014
With the development of high speed digital processor and solid state power electronics, more flexible waveforms become feasible to achieve by modern radar systems.
Cao Si-yang, Zheng Yuan-fang
doaj   +1 more source

MIMO Radar Ambiguity Properties and Optimization Using Frequency-Hopping Waveforms [PDF]

open access: yes, 2008
The concept of multiple-input multiple-output (MIMO) radars has drawn considerable attention recently. Unlike the traditional single-input multiple-output (SIMO) radar which emits coherent waveforms to form a focused beam, the MIMO radar can transmit ...
Chen, Chun-Yang, Vaidyanathan, P. P.
core   +2 more sources

Radar-to-Radar Interference Suppression for Distributed Radar Sensor Networks

open access: yesRemote Sensing, 2014
Radar sensor networks, including bi- and multi-static radars, provide several operational advantages, like reduced vulnerability, good system flexibility and an increased radar cross-section.
Wen-Qin Wang, Huaizong Shao
doaj   +1 more source

MIMO radar space–time adaptive processing using prolate spheroidal wave functions [PDF]

open access: yes, 2008
In the traditional transmitting beamforming radar system, the transmitting antennas send coherent waveforms which form a highly focused beam. In the multiple-input multiple-output (MIMO) radar system, the transmitter sends noncoherent (possibly ...
Chun-yang Chen   +2 more
core   +2 more sources

Chaos Based Frequency Modulation for Joint Monostatic and Bistatic Radar-Communication Systems

open access: yesRemote Sensing, 2021
In this article, we propose the utilization of chaos-based frequency modulated (CBFM) waveforms for joint monostatic and bistatic radar-communication systems.
Chandra S. Pappu   +2 more
doaj   +1 more source

General Signal Model for Multiple-Input Multiple-Output GMTI Radar

open access: yesSensors, 2018
Multiple-input multiple-output (MIMO) ground moving target indication (GMTI) radar has been studied recently because of its excellent performance. In this paper, a general signal model is established for the MIMO GMTI radar with both fast-time and slow ...
Fuyou Li   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy