中心频率

测点1

测点2

测点3

测点4

10

65.4

66.7

66.8

66.9

12.5

72

72.1

71.5

73.9

16

72.8

71.9

70.7

75

20

72.8

72.3

73.6

74.3

25

90.6

90.1

81.5

83.5