7 papers
Multi-Target Micro-Motion Parameter Estimation using MIMO-FMCW Radar with Limited Measurements
Chandrashekhar Rai, Sanjay J. Alex, Arpan Chattopadhyay
This work presents a compressive sensing-based approach for estimating the micro-motion parameters of targets with rotating components, such as small unmanned aerial vehicles (UAVs…
A Decoupling-based Approach for Signature Estimation of Wideband XL MIMO-FMCW Radars
Chandrashekhar Rai, Dibbendu Roy, Debarati Sen
Modern radars employing wideband signals and extremely large (XL) multiple-input multiple-output (MIMO) arrays can significantly improve range and angular resolution. However, when…
Low-Complexity Super-Resolution Signature Estimation of XL-MIMO FMCW Radar
Chandrashekhar Rai, Arpan Chattopadhyay
Extremely Large-Scale (XL) multiple input multiple output (MIMO) antenna systems combined with ultra-wide signal bandwidth (BW) offer the potential for ultra-high-resolution sensin…
Multi-target Range, Doppler and Angle estimation in MIMO-FMCW Radar with Limited Measurements
Chandrashekhar Rai, Himali Singh, Arpan Chattopadhyay
Multiple-input multiple-output (MIMO) radar offers several performance and flexibility advantages over traditional radar arrays. However, high angular and Doppler resolutions neces…
An Artificial Intelligence Enabled Signature Estimation of Dual Wideband Systems in Ultra-Low Signal-to-Noise Ratio
Chandrashekhar Rai, Debarati Sen
Millimeter-wave (mmWave) massive Multiple Input Multiple Output (MIMO) systems encounter both spatial wideband spreading and temporal wideband effects in the communication channels…
A Two-Stage Rotation-Based Super-Resolution Signature Estimation for Spatial Wideband Systems
Chandrashekhar Rai, Debarati Sen
Spatial and temporal delays in a wireless multi-antenna system, paired with an orthogonal frequency division multiplexing (OFDM) waveform, can be utilized to estimate the Angle of…