Simulations under Ideal and Nonideal Conditions for Characterization of a Passive Doppler Geographical Location System Using Extension of Data Reception Network

Table 3

(a) Bias errors in the simulated Doppler measurements for satellite SCD-2.

Satellite	Number of samples per pass	Bias errors in the simulated Doppler measurements (Hz)	Locations processed (sum of the 5 stations)	Mean location error for reception stations STA1 to STA5 (km)
				0.30±0.03
				0.27±0.01
	600	1	385	0.25±0.05
				0.21±0.05
				0.22±0.07
				0.38±0.09
				0.44±0.07
	7	1	410	0.30±0.08
				0.23±0.02
				0.39±0.04
				2.99±0.21
				2.78±0.52
	600	10	385	2.46±0.21
				2.10±0.48
SCD-2				2.27±0.70
				3.47±0.34
				3.34±0.97
	7	10	419	2.87±0.46
				2.77±0.19
				2.90±0.14
				21.37±4.88
				23.76±6.07
	600	100	385	23.82±8.74
				20.00±4.80
				24.02±8.64
				28.72±7.91
				30.37±10.05
	7	100	420	26.14±9.80
				25.48±5.40
				26.63± 6.83

(b) Bias errors in the simulated Doppler measurements for satellite NOAA-17.

Satellite	Number of samples per pass	Bias errors in the simulated Doppler measurements (Hz)	Locations processed (sum of the 5 stations)	Mean location error for reception stations STA1 to STA5 (km)
				0.27±0.01
				0.24±0.02
NOAA-17	600	1	173	0.31±0.06
				0.21±0.05
				0.22±0.05
				0.32±0.07
				0.28±0.07
				0.28±0.07
	7	1	155	0.24±0.05
				0.34±0.05
				2.71±0.89
				2.41±0.43
	600	10	173	2.49±0.39
				2.12±0.24
				2.19±0.47
				3.69±0.59
				3.64±0.52
NOAA-17	7	10	161	3.64±0.52
				3.22±0.18
				3.49±0.91
				26.52±2.48
				23.56±3.11
	600	100	173	27.75±7.81
				20.42±2.36
				21.994±9.72
				28.79±9.93
				29.05±5.05
	7	100	158	28.23±8.71
				21.97±5.72
				31.82±10.88