Feedback instability analysis including height-dependence of ionospheric and magnetospheric conditions

Tomo-Hiko Watanabe, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan, Junya Hiwatari, Nagoya University, Physics, Nagoya, Japan and Shinya Maeyama, Nagoya University, Physics, Furo-cho, Chikusa-ku, Nagoya, Japan