The Vertical Ionosphere Parameters Inversion for High Frequency Surface Wave Radar

Table 1

Experimental results compared with IRI2012.

Time	Radar frequency	Ionosphere height	Electron density	IRI2012 estimation	Plasma frequency	IRI2012 estimation	Mean velocity
	/MHz	/km	/m^−3	/m^−3	/MHz	/MHz	/m/s
20:20	4.5	215			7.93	1.44	1.71
20:31	5.5	215			6.46	1.34	−45.68
20:41	6.5	225			10.44	1.83	−1.29
21:04	7.5	215			8.45	1.22	−5.00
15:32	4.7	185			8.67	4.98	1.65
15:41	5.6	200			7.71	5.83	5.43
15:52	6.4	220			7.46	6.96	9.10
9:44	4.7	160			3.92	4.89	−15.45
10:03	6.5	185			7.57	5.71	4.34
10:14	8.1	215			5.11	6.89	−11.83