The calibration method of phased array seeker with the phantom-bit technology
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- 作者：Xiao Du ; duxiao.63@163.com" class="auth_mail" title="E-mail the corresponding author ; Qunli Xia
- 关键词：Phased array ; Digital phase shifter ; Phantom-bit technology ; Beam point error ; Calibration
- 刊名：Optik - International Journal for Light and Electron Optics
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：127
- 期：18
- 页码：7225-7234
- 全文大小：1840 K
文摘
This paper studied the influence of beam point error of Phased Array Strap-down seeker (PASS)and the calibration method. The Last End-off Phase Feeding method and the Round-off Phase Feeding method have been illustrated and analyzed to discuss the reason of the bore-sight error (BSE). The calibration error would influence the bore-sight because of oscillation of BSE. With ignoring the system noise, a method which used the digital phase shifter code has been put forward. The study showed that using the digital phase shifter code to calibrate can reduce the bore-sight error which induced by virtual phase shifting technology effectively.