| 摘要 |
A method is presented by which a missile body roll angle relative to earth coordinates can be deciphered onboard the missile from ground-data relayed to the missile during flight The present method comprises of a horizontal pair and a vertical pair of antennas on the ground and an up-down pair and a right-left pair of antennas onboard the missile. The ground to pairs signals are sinusoidally amplitude modulated in 90° phase difference between the two pairs, causing the transmitted wave polarity to rotate in the modulation frequency. A reference pulse is transmitted from the ground whenever the wave polarity vector crosses a prescribed ground antenna direction, thereby enabling the missile to measure its body up, down, right and left directions relative to earth up, down, right and left directions and to further respectively align them together. |
| 主权项 |
1. A method of guiding a missile from a ground station, the missile including a missile body, the missile body and the ground station having respective up, down, left, and right directions, the missile body directions defined in the reference frame of the missile body, wherein the ground station includes an up transmitting antenna, a down transmitting antenna, a right transmitting antenna and a left transmitting antenna, the ground station antennas aligned with the ground station respective up, down, right and left directions, the method comprising:
transmitting data from the ground station to the missile, the data including a value of the missile roll angle in a horizontal axis reference frame of the ground station; receiving the transmitted data on missile; and aligning the missile body up, down, left, and right directions with corresponding ground station up, down, left, and right directions according to the value in the received data. |
