| CPC G05D 1/0808 (2013.01) [B64G 1/242 (2013.01); B64G 1/62 (2013.01); B64C 30/00 (2013.01); B64G 1/002 (2013.01)] | 14 Claims |
|
1. A glide control device, comprising:
a communications device configured to communicate with an attitude control device of a glide vehicle in which no propulsion device configured to accelerate the glide vehicle is disposed; and
a processor configured to control the attitude control device,
wherein the processor is configured to control the attitude control device to generate a downward lift force so as to allow the glide vehicle to fly in a horizontal direction when a velocity of the glide vehicle is higher than or equal to a first cosmic velocity, and
wherein the first cosmic velocity is a velocity required by a spacecraft in a circular low Earth orbit, and
wherein the processor is configured to:
determine, based on the velocity of the glide vehicle, a reference altitude at which the glide vehicle should glide; and
control the attitude control device based on a current altitude of the glide vehicle and the reference altitude, wherein the reference altitude is calculated in accordance with the following expression (1):
 wherein h is the reference altitude,
K is a correction factor,
He is a scale height of the earth used to calculate a density of atmospheric air,
ρ0 is an air density at an altitude of 0 m,
Re is an earth radius,
βm is a ballistic coefficient,
Ve is the first cosmic velocity, and
L/Dmax is a maximum lift-drag ratio of the glide vehicle.
|