Photonic angle-of-arrival and time-difference-of-arrival measurement based on dual drive 1×2 MZM

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（3）
• 页码范围: 15-17
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.030605

摘要

We propose and experimentally demonstrate a photonic approach to estimate the time-difference-of-arrival (TDOA) and the angle-of-arrival (AOA) of a microwave signal.TDOA and AOA are estimated from the carrier power difference of the two outputs of the Mach-Zehnder modulator (MZM) using only one dualdrive 1x2 MZM.Experimentally,the TDOA of a microwave signal at 3 GHz from 27.78 to 166.67 ps is measured with maximum measurement errors of ±2.24 ps;correspondingly,the AOA from 60° to 85.2° is measured with maximum measurement errors of ±0.4°.