| 摘要 |
<p>These range errors can be corrected by accurately estimating the frequency deviation error of a radar system. The present invention improves target position determination performance in a radar system by reducing errors introduced by the frequency deviation error. In accordance with a first range calibration technique of the present invention, the radar system measures the range, Doppler range rate, and azimuth angle of a target during at least two successive time instances. The method corrects the range using a frequency deviation correction factor, K. A second calibration technique of the present invention is based on giving more weight to tracks with more reliable data. The frequency deviation correction factor is updated and used for correcting the range.</p> |
