Research on Radar Backscatter Coefficient of Typical Objectsin P-Band and L-Band Electromagnetic Wave

类型	极化方式	$\sigma_0 $/dB	HH极化与HV极化$\sigma_0 $的差值/dB
草地	HH	−21.2	12.6
	VV	−21.6
	HV	−33.8
城区	HH	−9.60	9.90
	VV	−14.5
	HV	−19.5
干雪	HH	−22.7	11.0
	VV	−22.6
	HV	−33.7
湿雪	HH	−21.2	10.0
	VV	−20.8
	HV	−31.2
土壤和岩石	HH	−15.4	12.6
	VV	−17.1
	HV	−28.0

Table 2. Radar scattering coefficient of HH polarization

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Table 2. Radar scattering coefficient of HH polarization

典型地物	入射角/（°）	$\sigma_0 $值/dB	$\sigma_0 $变化范围/dB
草地1	66.4	−26.78	−27~−23
草地2	65	−26.38
草地3	56.5	−23.55
湖面（深）	62.2	−25.26	−26~−22
湖面（浅）	53.5	−22.21	−26~−22
稻茬田1	63.3	−24.51	−25~−22
稻茬田2	59.5	−24.14
稻茬田3	51.9	−22.98
树林1	62.05	−3.76	−7~−3
树林2	59.5	−6.24	−7~−3

Table 3. Radar scattering coefficient of HV polarization

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Table 3. Radar scattering coefficient of HV polarization

典型地物	入射角/（°）	$ \sigma_0 $值/dB	$ \sigma_0 $变化范围/dB
草地1	66.4	−34	−34~−32
草地2	65	−33.8
草地3	56.5	−32.68
湖面（深）	62.2	−32	−32~−30
湖面（浅）	53.5	−30.28	−32~−30
稻茬田1	63.3	−32.02	−32~−30
稻茬田2	59.5	−31.39
稻茬田3	51.9	−30.65
树林1	62.05	−18.66	−20~−18
树林2	59.5	−19.46	−20~−18

Table 4. Radar scattering coefficient differences between HH and HV polarization

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Table 4. Radar scattering coefficient differences between HH and HV polarization

典型地物	入射角/（°）	HH极化与HV极化$ \sigma_0 $的差值/dB	差值变化范围/dB
草地1	66.4	7.22	7~10
草地2	65.0	7.42
草地3	56.5	9.13
湖面（深）	62.2	6.74	6~9
湖面（浅）	53.5	8.07	6~9
稻茬田1	63.3	7.51	7~8
稻茬田2	59.5	7.25
稻茬田3	51.9	7.67
树林1	62.1	14.9	13~15
树林2	59.5	13.2	13~15

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Zhikun LIU, Kai JIANG, Xingwang QIAO, Lulu TAN, Jiajia ZHANG, Yongtao LIU. Research on Radar Backscatter Coefficient of Typical Objectsin P-Band and L-Band Electromagnetic Wave[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(4): 91

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