Inflight Parameter Identification and Icing Location Detection of the Aircraft: The Time-Varying Case

Table 1

Dynamic parameters of Twin Otter in clean and iced configurations.

(a)

	𝐶𝑍0	𝐶𝑍𝛼	𝐶𝑍𝑞	𝐶𝑍𝛿𝑒	𝐶𝑥0	𝐾	𝐶𝑚0	𝐶𝑚𝛼	𝐶𝑚𝑞	𝐶𝑚𝛿𝑒
Clean	−0.380	−5.660	−19.970	−0.608	−0.041	0.052	0.008	−1.310	−34.200	−1.740
Wing	−0.380	−5.342	−19.700	−0.594	−0.050	0.053	0.008	−1.285	−33.000	−1.709
Tail	−0.380	−5.520	−19.700	−0.565	−0.046	0.053	0.008	−1.263	−33.000	−1.593
Both	−0.380	−5.094	−19.700	−0.550	−0.062	0.057	0.008	−1.180	−33.000	−1.566

(b)

𝐶𝑌𝛽

𝐶𝑌𝑝

𝐶𝑌𝑟

𝐶𝑌𝛿𝑟

𝐶𝑙𝛽

𝐶𝑙𝑝

𝐶𝑙𝑟

𝐶𝑙𝛿𝑎

𝐶𝑙𝛿𝑟

𝐶𝑛𝛽

𝐶𝑛𝑝

𝐶𝑛𝑟

𝐶𝑛𝛿𝑎

𝐶𝑛𝛿𝑟

Clean

−0.6

−0.2

0.4

0.15

−0.08

−0.5

0.06

−0.15

0.015

0.1

−0.06

−0.18

−0.12

−0.001

Both

−0.48

−0.2

0.4

0.135

−0.072

−0.45

0.06

−0.135

0.0138

0.08

−0.06

−0.169

−0.11

−0.001