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- Title
Online Gain and Phase Calibration for Phased Array Radar.
- Authors
JI Bin; YANG Yong
- Abstract
Because the radar echo's amplitude and phase will be changed when the temperature of TR module channel rises, the phased array antenna beam pointing accuracy will descend and side-lobe level will drive up, resulting in the failure when the radar system begins to detect, imaging and track. Through analyzing the reason causing amplitude-phase error, this paper introduces an algorithm which combines far-field measurement method of optimized radiation pattern with near-field measurement method of average vector algorithm to calibrate the radar non-realtimely and improve the phased array antenna's amplitude-phase consistency. The correction and feasibility of this algorithm have been proved by the measurement in anechoic chamber and outfield test.
- Subjects
RADAR cross sections; PHASED array radar; ALGORITHMS; ANECHOIC chambers; FRAUNHOFER region (Electromagnetism)
- Publication
Telecommunication Engineering, 2014, Vol 54, Issue 5, p621
- ISSN
1001-893X
- Publication type
Article
- DOI
10.3969/j.issn.1001-893x.2014.05.018