DC-offset Estimation of Multiple CW Micro Doppler Radar
2018
De-offset estimation of quadrature continuous-wave (CW) radar has been studied for years. Studies have shown that the estimation error increases when target movement with respect to the radar is small. This paper presents a method that uses multiple simultaneous CW frequencies for the de-offset estimation, which makes the de-offset estimation easy in contrast to the conventional quadrature CW radar. A de-offset estimation method using the multiple CW frequencies is presented to demonstrate that the multiple CW frequencies provide sufficient information for the de-offset estimation.
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