Results of Short-Period Helicopter System Identification Using Output-Error and Hybrid Search-Gradient Optimization Algorithm

Table 3

Other identified parameters at 80 kt and 5,000 ft.

Parameter	Identified value
${\dot{w}}_{\text{bias}}$ [m/s]	−0.1745
${\dot{q}}_{\text{bias}}$ [rad/s]	0.1804
${\dot{\theta }}_{\text{bias}}$ [rad]	0.1764
$w_{\text{ref}}$ [m/s]	0.3580
$q_{\text{ref}}$ [rad/s]	−0.0003
${\theta }_{\text{ref}}$ [rad]	0.0038
${\tau }_{\delta m}$ [s]	0.2590