Results 21 to 30 of about 103,288 (249)
Time Reversal Detection for Moving Targets in Clutter Environments
Remote Sensing, 2023 Moving target detection plays a pivotal role in many applications, especially in radar systems. In addition, time-reversal (TR) technology can improve radar detection probability by effectively solving the problem of multipath signals. However, detection
Hao Lian +4 more
doaj +1 more source
Benefits of Waveform Relaxation Method and Output Space Mapping for the Optimization of Multirate Systems [PDF]
, 2014 We present an optimization problem that requires to model a multirate system, composed of subsystems with different time constants. We use waveform relaxation method in order to simulate such a system.
BRISSET, Stéphane +3 more
core +7 more sources
Fast Implementation of Transmit Beamforming for Colocated MIMO Radar [PDF]
, 2015 Multiple-input Multiple-output (MIMO) radars benefit from spatial and waveform diversities to improve the performance potential. Phased array radars transmit scaled versions of a single waveform thereby limiting the transmit degrees of freedom to one ...
Raja Rajeswari, K., Sharma, G. V. K.
core +4 more sources
A Survey of Collocated MIMO Radar
Leida xuebao, 2022 As a novel radar system, the Multiple-Input Multiple-Output (MIMO) radar with waveform diversity has demonstrated excellent performance in several aspects, including target detection, parameter estimation, radio frequency stealth, and anti-jamming ...
Zishu HE +6 more
doaj +1 more source
Waveform Design for Secure SISO Transmissions and Multicasting [PDF]
, 2013 Wireless physical-layer security is an emerging field of research aiming at preventing eavesdropping in an open wireless medium. In this paper, we propose a novel waveform design approach to minimize the likelihood that a message transmitted between ...
Dimitris A. Pados +4 more
core +1 more source
MIMO Radar Ambiguity Properties and Optimization Using Frequency-Hopping Waveforms [PDF]
, 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
Chaos in optimal communication waveforms [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015 The properties of nonlinear dynamics and chaos are shown to be fundamental to optimal communication signals subject to two practical and realistic design requirements: (i) operation in a noisy environment and (ii) simple hardware implementation. Starting with a simple electronic circuit, a linear filter receiver is presumed, and the matched optimal ...
Ned J. Corron, Jonathan N. Blakely
openaire +1 more source
Colocated MIMO Radar Waveform-Array Joint Optimization for Sparse Array
Sensors, 2023 Colocated multiple-input multiple-output (MIMO) radar can transmit a group of distinct waveforms via its colocated transmit antennas and the waveform diversity leads to several advantages in contrast to conventional phased-array radar.
Jinrong Yin +3 more
doaj +1 more source
Towards Dual-functional Radar-Communication Systems: Optimal Waveform Design [PDF]
, 2017 We focus on a dual-functional multi-input-multi-output (MIMO) radar-communication (RadCom) system, where a single transmitter communicates with downlink cellular users and detects radar targets simultaneously.
Li, Ang +5 more
core +2 more sources
Optimal Waveform Selection for Robust Target Tracking [PDF]
Journal of Applied Mathematics, 2013 This paper proposes a new optimal waveform selection algorithm for intelligent target tracking. In radar systems, optimal waveform is inspired by the improvements in performance. When the target is intelligent and tries to escape from detection, it will maximize the estimation error to degrade the target tracking performance.
Xin, Fengming +3 more
openaire +3 more sources