Large-Scale MIMO Calibration Dataset\uff0d\uff26\uff2d\uff23\uff37\uff0d\uff29\uff2d\uff21\uff27

\u200b\u200bMIMO Radar System Calibration Dataset Description\u200b\u200b\u200b\u200b1. System Configuration\u200b\u200bThis dataset is acquired by a large-scale MIMO radar system operating at 77.5 GHz. The system features an RF bandwidth of 5 GHz, achieving a theoretical range resolution of 3 cm. The antenna array employs a sparse design comprising 128 sub-arrays, with an inter-element spacing of 0.75\u03bb within sub-arrays and an inter-sub-array spacing of 48\u03bb. This configuration ensures a \u00b140\u00b0 field of view while maintaining high angular resolution.\u200b\u200b2. Signal Waveform\u200b\u200bThe radar adopts a Linear Frequency-Modulated Continuous Wave (FMCW) waveform, with a pulse width of 10 \u03bcs. Echo signals are sampled by an ADC at a rate of 250 MHz, ensuring distortion-free signal acquisition.\u200b\u200b3. Data Content and Application\u200b\u200bThe dataset includes raw data collected by the MIMO system under various typical calibration scenarios (e.g., corner reflectors at different distances and angles). These data accurately capture carrier frequency offsets, phase noise, and amplitude\/phase inconsistencies across transceiver channels, providing high-quality experimental data for developing and validating novel calibration algorithms.