Results 21 to 30 of about 22,383 (198)

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

MIMO Radar Waveform Optimization With Prior Information of the Extended Target and Clutter [PDF]

open access: yes, 2009
The concept of multiple-input multiple-output (MIMO) radar allows each transmitting antenna element to transmit an arbitrary waveform. This provides extra degrees of freedom compared to the traditional transmit beamforming approach.
Chun-yang Chen   +2 more
core   +2 more sources

Adaptive intra‐pulse interference waveform generation technique based on Convolutional Neural Network—Deep Neural Network with global priority information of radar signal

open access: yesIET Radar, Sonar & Navigation, 2023
To adapt to the complex and changeable electromagnetic environment of radar detection, improve the jamming effect on frequency‐agile radar and low probability of intercept radar, and solve the problem of poor jamming effect caused by intra‐pulse jamming ...
Yilin Jiang   +3 more
doaj   +1 more source

Waveform considerations in space-variant optical processors [PDF]

open access: yes, 1978
The use of coded waveforms in space-variant optical signal processors using coordinate transformations is considered. It is shown that nonlinear transmitted coded signals must be used with such a processor and that this results in novel waveform design ...
Casasent, David, Psaltis, Demetri
core   +1 more source

Thinned spectrum radar waveforms [PDF]

open access: yes2010 International Waveform Diversity and Design Conference, 2010
Small phase perturbations applied to a stepped-frequency or linear-frequency-modulated radar waveform have been proposed as a means to generate frequency nulls in the spectrum of the transmitted waveform. By nulling selected frequencies (or thinning) in the spectrum of transmitted pulses, the interference between the transmitted and received signals is
Matthew R. Cook   +2 more
openaire   +1 more source

Radar Constant-Modulus Waveform Optimization for High-Resolution Range Profiling of Stationary Targets

open access: yesSensors, 2017
The high-resolution range (HRR) profile is an important target signature in many applications (e.g., automatic target recognition), and the radar HRR profiling performance is highly dependent on radar transmitted waveforms. In this paper, we consider the
Wenzhen Yue, Lin Li, Yu Xin, Tao Han
doaj   +1 more source

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