基于双向重采样的高分辨率前视成像算法

doi:10.7527/S1000-6893.2023.28749

Abstract

CLC Number:

V243.2

Figures/Tables 10

Fig.1

Fig.2

Table 1

Fig.3

Fig.4

Fig.5

Fig.6

Table 2

Comparison of contour plots

算法	中心点 $P 0$	近边缘点 $P 1$	远边缘点 $P 2$
本文算法
“停走停”模型下本文算法
本文算法在“非停走停”模型与“停走停”模型下的方位切面图
文献［ 19］算法
本文算法与文献［ 19］算法的方位切面图

Table 2

Table 3

Focusing effect of the algorithms

点目标	算法	方位向			距离向
点目标	算法	PSLR/dB	ISLR/dB	IRW/m	PSLR/dB	ISLR/dB	IRW/m
$P 0$	本文算法	-13.34	-10.21	1.85	-13.23	-10.75	1.69
	文献［ 19］算法	-12.99	-10.82	1.86	-13.49	-10.49	1.88
	“停走停”模型下的本文算法	-12.88	-9.81	1.85	-13.10	-10.64	2.28
$P 1$	本文算法	-13.29	-10.74	2.15	-13.12	-10.72	1.76
	文献［ 19］算法	-13.41	-10.72	2.35	-13.63	-10.32	1.81
	“停走停”模型下的本文算法	-9.58	-7.91	2.01	-13.14	-10.73	2.66
$P 2$	本文算法	-13.05	10.56	2.28	-13.10	-10.64	1.71
	文献［ 19］算法
	“停走停”模型下的本文算法	-3.07	-5.20	4.23	-13.20	-10.54	1.83

Table 3

Fig.7

References 23

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参数	数值
载波频率/GHz	12
脉冲重复频率/Hz	600
合成孔径时间/s	1
脉冲持续时间/μs	1.5
距离向带宽/MHz	100
距离向采样频率/MHz	200
发射机位置/m	（12 000，-3 000，24 500）
发射机速度/（m⋅s ^-1）	（1 000，-300，220）
发射机加速度/（m⋅s ^-2）	（40，30，20）
接收机位置/m	（0，-10 000，16 300）
接收机速度/（m⋅s ^-1）	（0，2 000，450）
接收机加速度/（m⋅s ^-2）	（0，40，-30）

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