Jointly Compensated Imaging Algorithm of Inverse Synthetic Aperture Lidar Based on Nelder-Mead Simplex Method

Shengjie Liu; Hanchu Fu; Kai Wei; Yudong Zhang

doi:10.3788/AOS201838.0711002

Acta Optica Sinica, Volume. 38, Issue 7, 0711002(2018)

Jointly Compensated Imaging Algorithm of Inverse Synthetic Aperture Lidar Based on Nelder-Mead Simplex Method

Shengjie Liu^1,2,3, Hanchu Fu^1,2,3, Kai Wei^1,2、*, and Yudong Zhang^1,2

Author Affiliations

¹ Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China

² Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China

³ University of Chinese Academy of Sciences, Beijing 100049, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(9)

Fig. 1. Model of ISAL

Download full size

Fig. 2. Basic flowchart of the imaging process for ISAL

Download full size

Fig. 3. B727 model. (a) 3D coordinate system; (b) 2D coordinate system

Download full size

Fig. 4. (a) Initial ISAL range image; (b) ISAL range image after range alignment

Download full size

Fig. 5. Entropy of ISAL image against iteration number for (a) global compensation and (b) residual error compensation

Download full size

Fig. 6. ISAL image obtain by (a) proposed method and (b) traditional method

Download full size

Fig. 7. (a) True value and estimates of rotational angular velocity against test number; (b) relative error of rotational angular velocity against test number

Download full size

Table 1. Geometry and motion parameters of target

View table

Table 1. Geometry and motion parameters of target

Parameter	Value
Length in the x direction Δx /m	0.67
Width in the y direction Δy /m	0.44
Velocity along the x direction v /(m·s^-1)	100
Acceleration along the x direction a /(m·s^-2)	20
Rotational angular velocity ω /(rad·s^-1)	0.015

Table 2. Operating parameters of ISAL system
View table
Table 2. Operating parameters of ISAL system
Parameter Value
Initial wavelength λ_c /nm 1550
Modulation bandwidth B /GHz 150
Pulse width T_w /μs 3
Repetition interval T_PRI /μs 77.5
Sampling rate f_s /MHz 333
Range cell M 1000
Pulse number N 1000

Tools

Get Citation

Copy Citation Text

Shengjie Liu, Hanchu Fu, Kai Wei, Yudong Zhang. Jointly Compensated Imaging Algorithm of Inverse Synthetic Aperture Lidar Based on Nelder-Mead Simplex Method[J]. Acta Optica Sinica, 2018, 38(7): 0711002

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites