Results 21 to 30 of about 2,547 (185)

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

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

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

Alternating Direction Method of Multipliers-Based Constant Modulus Waveform Design for Dual-Function Radar-Communication Systems

open access: yesEntropy, 2023
In this paper, we design constant modulus waveforms for dual-function radar-communication (DFRC) systems based on a multi-input multi-output (MIMO) configuration of sensors for a far-field scenario.
Ahmed Saleem   +8 more
doaj   +1 more source

Power optimisation of simultaneously transmitted communication and radar waveforms from a common array

open access: yesThe Journal of Engineering, 2019
Synthesising radar and communication waveforms in different directions using a common array is a hardware-saving solution for the coexistence of communication and radar in competitive spectrum environments.
Xiang Liu   +4 more
doaj   +1 more source

Cramér-Rao Bounds on Angle Estimating in Bistatic MIMO Radar With Non-Orthogonal Waveforms

open access: yesIEEE Access, 2020
Angle estimation is a hot topic in multiple input multiple output (MIMO) radar. However, most of the existing algorithms are only focus on the scenario of ideal orthogonal transmission waveform.
Chenxing Mao   +3 more
doaj   +1 more source

Range Dividing MIMO Waveform for Improving Tracking Performance

open access: yesSensors, 2021
A multiple-input multiple-output (MIMO) method that shares the same frequency band can efficiently increase radar performance. An essential element of a MIMO radar is the orthogonality of the waveform.
Eun-Hee Kim, Han-Saeng Kim, Ki-Won Lee
doaj   +1 more source

Coded OFDM Waveforms for MIMO Radars [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2021
Emerging digital radar concepts such as orthogonal frequency-division multiplexing (OFDM) allow flexible signal generation. This opens up new opportunities in waveform design in a multiple-input multiple-output (MIMO) system such as introducing coding for signal multiplexing. In this article, coded MIMO OFDM waveforms are proposed and investigated that
Christina Knill   +4 more
openaire   +1 more source

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