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Wang L.,No23 Institute Of The Second Academy | Zhao H.,Pla Representative Office In No23 Institute Of The Second Academy | Yu J.,No23 Institute Of The Second Academy | Hu Q.,No23 Institute Of The Second Academy | And 2 more authors.
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | Year: 2015

In order to test the key technologies of long-range LADAR, the experimental system was proposed based on the Nd:YAG laser. The system was combined with optical sub-system, control sub-system and signal process sub-system, and directed by charge-coupled device (CCD) when working. Coarse and fine dual-axis structure was adopted to realize the precise tracking of the target. Meanwhile, in order to increase the detection precision, the laser signal was processed in digital domain. At last, the detection range of the system was analyzed versus different laser cross section targets (LCS). The result shows that if the LCS is 1 m2 and the atmosphere is first order, the detection range of the system is 22 km. © 2015, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.

Jin Z.,No23 Institute Of The Second Academy | Xie L.-G.,The Aerospace Corporation | Wen S.-L.,No23 Institute Of The Second Academy
Yuhang Xuebao/Journal of Astronautics | Year: 2014

To solve the serious problem of grate lobe in distributed MIMO radar three-dimensional array, the optimization criterion of minimum PSL(Peak Sidelobe Level) based on the constraint of shading free is derived. The estimation results of PSL are given for different array geometries, different element radar numbers and apertures, and different scanning angles. Numerical simulation results show that the minimum PSL can be achieved by optimal positions perturbed ring array when the distributed MIMO radar is collocated and shading-free.

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