期刊文献+

改进的阵列幅相差和阵元位置误差自校正算法 被引量:6

Self-Calibration Algorithm for DOA Estimation in Presence of Sensor Amplitude,Phase Uncertainties and Sensor Position Errors
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摘要 基于信号子空间拟合算法的代价函数,提出了一种改进的阵列幅相差和阵元位置误差自校正算法,该算法采用分步迭代的方式,可在阵列存在幅相差和阵元位置误差的情况下,估计出信源的波达方向(DOA)、阵列幅相差和阵元位置误差。文中还给出了参数估计惟一性的必要条件。计算机仿真结果验证了该算法的有效性。 Based on the cost function of signal subspace fitting algorithm,a modified self-calibration algorithm is presented.The algorithm can separately estimate the direction of arrival(DOA),the amplitude and phase errors,and sensor position errors in the presence of array errors.The necessary condition for uniqueness of the parameter estimation is given.The simulation confirms the validity of the algorithm.
出处 《数据采集与处理》 CSCD 北大核心 2008年第2期176-181,共6页 Journal of Data Acquisition and Processing
关键词 阵列 自校正 幅相差 阵元位置误差 antenna array self-calibration amplitude and phase errors sensor position errors
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