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Realizing joint radar-communications in coherent MIMO radars
- Source :
- Physical Communication
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- The increasing interest on spectrum resources causes various efforts on developing smart and compact solutions as joint radar-communication (JRC) systems. A JRC system can offer cost-effective solution with concurrent operation, as target sensing via radar processing and establishing communication links. JRC capability has been proposed over the years for different types of MIMO radars. However, a JRC capable monostatic coherent MIMO radar system is yet to be developed. These radars offer several advantages as fully coherent signal processing and coherent transmit beamforming which provides beampatterns to minimize probability of intercept. In this paper, two new waveform generation techniques suitable for JRC operation without disturbing transmit beamforming requirements and waveform orthogonality condition in space and time domain are proposed for monostatic coherent MIMO radars. Then, new communication methods are introduced for phase coded monostatic coherent MIMO radars. First method uses chirp-wise information encoding inside the radar pulse as intra-pulse communications. Second rotates the phase of a specific waveform on radiated symbols to a specific direction and the last method applies a small amount of progressive phase shift to the radar waveforms emitted from the antennas to create relative phase modulation between selected radar waveforms. Then, the performance of the proposed communication techniques are investigated in terms of bit error rate (BER) and generated waveforms are examined according to the orthogonality and transmit beamforming requirements.<br />NA
- Subjects :
- Engineering, electrical and electronic
Telecommunications
Beamforming
Signal processing
Computer science
Joint radar-communication
Coherent MIMO radar
Orthogonal waveform generation
010102 general mathematics
MIMO
020206 networking & telecommunications
02 engineering and technology
01 natural sciences
law.invention
Orthogonality
law
Modulation
0202 electrical engineering, electronic engineering, information engineering
Bit error rate
Electronic engineering
Waveform
0101 mathematics
Electrical and Electronic Engineering
Radar
Computer Science::Information Theory
Subjects
Details
- ISSN :
- 18744907
- Volume :
- 32
- Database :
- OpenAIRE
- Journal :
- Physical Communication
- Accession number :
- edsair.doi.dedup.....7e757d9a35c3fa7620d4919262112a54