title: Experimental demonstration of a multi-target detection technique using an X-band optically steered phased array radar.
abstract: An X-band optically-steered phased array radar is developed to demonstrate high resolution multi-target detection. The beam forming is implemented based on wavelength-swept true time delay (TTD) technique. The beam forming system has a wide direction tuning range of ± 54 degree, low magnitude ripple of ± 0.5 dB and small delay error of 0.13 ps/nm. To further verify performance of the proposed optically-steered phased array radar, three experiments are then carried out to implement the single and multiple target detection. A linearly chirped X-band microwave signal is used as radar signal which is finally compressed at the receiver to improve the detection accuracy. The ranging resolution for multi-target detection is up to 2 cm within the measuring distance over 4 m and the azimuth angle error is less than 4 degree.
authors.forename: Nuannuan
authors.initials: N
authors.lastname: Shi
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Ye
authors.initials: Y
authors.lastname: Deng
authors.forename: Lihong
authors.initials: L
authors.lastname: Zhang
authors.forename: Shuqian
authors.initials: S
authors.lastname: Sun
authors.forename: Jian
authors.initials: J
authors.lastname: Tang
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Ninghua
authors.initials: N
authors.lastname: Zhu