Results 31 to 40 of about 671,317 (227)
A practical bistatic passive radar system for use with DAB and DRM illuminators [PDF]
, 2008 Digital broadcasts provide powerful illuminators of opportunity with waveforms that produce excellent radar ambiguity functions. An experimental program to investigate the possibility of such broadcasts for target tracking radar is described. In addition,
H. Yardley +5 more
core +1 more source
IEEE Photonics Journal, 2021 We propose a photonic method to generate and transmit dual-band dual-chirp microwave waveforms based on a dual-polarization dual-parallel Mach-Zehnder modulator (DP-DPMZM).
Lu Wang +6 more
doaj +1 more source
Photonic generation of Barker encoded dual-nonlinear frequency modulated RADAR waveforms
Results in Optics, 2023 Photonics enables the development of versatile waveform generators with carrier frequency tunability and broad bandwidths, allowing for high-range resolution for modern radar systems.
Rajveer Dhawan, Amol Choudhary
doaj +1 more source
Chirp Signals and Noisy Waveforms for Solid-State Surveillance Radars
Aerospace, 2017 Since the advent of “pulse compression” radar, the “chirp” signal (Linear Frequency Modulation, LFM) has been one of the most widely used radar waveforms.
Gaspare Galati +2 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2021 A signal embedding scheme into the emission of multiple‐input multiple‐output (MIMO) frequency hopping (FH) radar is analysed. In this scheme, the phase shift keying (PSK) communication symbols are multiplied with the frequency hops in fast‐time ...
Indu Priya Eedara +2 more
doaj +1 more source
Information theory and radar waveform design [PDF]
IEEE Transactions on Information Theory, 1993 Summary: The use of information theory to design waveforms for the measurement of extended radar targets exhibiting resonance phenomena is investigated. The target impulse response is introduced to model target scattering behavior. Two radar waveform design problems with constraints on waveform energy and duration are then solved.
openaire +1 more source
Analysis and Comparison of MIMO Radar Waveforms
, 2014 International audienceChoosing a proper waveform is a critical task for the implementation of multiple-input multiple-output (MIMO) radars. In addition to the general requirements for radar waveforms such as good resolution, low sidelobes, etc, MIMO ...
Marc Lesturgie +5 more
core +1 more source
Advanced Materials, EarlyView.The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj +8 more
wiley +1 more source
A Novel Joint Radar-communication Waveform Design Method Based on Distributed Aperture
Leida xuebao, 2023 Joint radar-communication waveform design has been the focus of intensive research in recent years. The integrated waveform based on a collocated antenna can simultaneously detect targets and communicate with multiple users in different directions ...
Liu LIU +4 more
doaj +1 more source
Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication
Advanced Materials Technologies, EarlyView.The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting +5 more
wiley +1 more source