float alt_ctrl_vz_sp(const alt_ctrl_t *c, float h_sp, float h, float vz_up, float vz_dn)
void alt_ctrl_reset(alt_ctrl_t *c, float integ)
void alt_ctrl_init(alt_ctrl_t *c, float hover)
float alt_ctrl_step(alt_ctrl_t *c, float vz_sp, float vz, float cos_tilt, float dt)
float hover
initial hover thrust guess (0..1)