Search Results for author: M. R. Bhavani Shankar

Found 9 papers, 0 papers with code

Improving Pulse-Compression Weather Radar via the Joint Design of Subpulses and Extended Mismatch Filter

no code implementations27 Sep 2022 Linlong Wu, Mohammad Alaee-Kerahroodi, M. R. Bhavani Shankar

Pulse compression can enhance both the performance in range resolution and sensitivity for weather radar.

The Rise of Intelligent Reflecting Surfaces in Integrated Sensing and Communications Paradigms

no code implementations14 Apr 2022 Ahmet M. Elbir, Kumar Vijay Mishra, M. R. Bhavani Shankar, Symeon Chatzinotas

The intelligent reflecting surface (IRS) alters the behavior of wireless media and, consequently, has potential to improve the performance and reliability of wireless systems such as communications and radar remote sensing.

MIMO Radar Transmit Beampattern Shaping for Spectrally Dense Environments

no code implementations13 Dec 2021 Ehsan Raei, Saeid Sedighi, Mohammad Alaee-Kerahroodi, M. R. Bhavani Shankar

Motivated by this fact, in this paper, we propose a framework for shaping the beampattern in MIMO radar systems under the constraints simultaneously ensuring unimodularity, desired spectral occupancy and orthogonality of the designed waveform.

Radar waveform design

Sparse Array Beampattern Synthesis via Majorization-Based ADMM

no code implementations9 Apr 2021 Tong Wei, Linlong Wu, M. R. Bhavani Shankar

Beampattern synthesis is a key problem in many wireless applications.

Design of MIMO Radar Waveforms based on lp-Norm Criteria

no code implementations7 Apr 2021 Ehsan Raei, Mohammad Alaee-Kerahroodi, Prabhu Babu, M. R. Bhavani Shankar

Multiple-input multiple-output (MIMO) radars transmit a set of sequences that exhibit small cross-correlation sidelobes, to enhance sensing performance by separating them at the matched filter outputs.

Spatial- and Range- ISLR Trade-off in MIMO Radar via Waveform Correlation Optimization

no code implementations8 Mar 2021 Ehsan Raei, Mohammad Alaee-Kerahrood, M. R. Bhavani Shankar

This paper aims to design a set of transmitting waveforms in cognitive colocated Multi-Input Multi-Output (MIMO) radar systems considering the simultaneous minimization of spatial- and the range- Integrated Sidelobe Level Ratio (ISLR).

On the Performance of One-Bit DoA Estimation via Sparse Linear Arrays

no code implementations28 Dec 2020 Saeid Sedighi, M. R. Bhavani Shankar, Mojtaba Soltanalian, Björn Ottersten

Specifically, we first investigate the identifiability conditions for the DoA estimation problem from one-bit SLA data and establish an equivalency with the case when DoAs are estimated from infinite-bit unquantized measurements.

Localization with One-Bit Passive Radars in Narrowband Internet-of-Things using Multivariate Polynomial Optimization

no code implementations29 Jul 2020 Saeid Sedighi, Kumar Vijay Mishra, M. R. Bhavani Shankar, Björn Ottersten

To support the low-capacity links to the fusion center (FC), the range estimates obtained at individual sensors are then converted to one-bit data.

A Family of Deep Learning Architectures for Channel Estimation and Hybrid Beamforming in Multi-Carrier mm-Wave Massive MIMO

no code implementations20 Dec 2019 Ahmet M. Elbir, Kumar Vijay Mishra, M. R. Bhavani Shankar, Björn Ottersten

Hybrid analog and digital beamforming transceivers are instrumental in addressing the challenge of expensive hardware and high training overheads in the next generation millimeter-wave (mm-Wave) massive MIMO (multiple-input multiple-output) systems.

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