Array calibration method for gain-phase errors based on asynchronous interstation direct wave interference

IEICE Electronics Express

Long Chao¹  Li Lun¹  Wu Xiongbin¹  Liu Bin¹  Xu Xing'an¹ 

[1] Electronic Information Institute of Wuhan University

关键词: asynchronism;    interstation direct wave interference;    FMICW;    gain-phase errors;    array calibration;   

DOI  :  10.1587/elex.9.450

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(6)In this paper, we analyze the interstation direct wave interference (IDWI) under an asynchronous condition. We propose an array calibration method for the consistency of gain-phase for the first time and show the conditions and probability of the generation of IDWI and the characteristics of asynchronous IDWI. This method can implement calibration of direct wave without keeping radar stations in synchronous condition and perform outstanding precision and stability. The experimental data demonstrate that using array calibration for gain-phase errors based on asynchronous IDWI can get accurate and stable calibration values of gain-phase errors.

【 授权许可】

Unknown