초록 ▼

A system for attitude determination of a platform in global positioning systems (GPS) is disclosed herein. The system includes at least two receivers and an attitude determination circuit. The receivers each include an antenna. The antenna is capable of receiving GPS signals. Each receiver also prod

A system for attitude determination of a platform in global positioning systems (GPS) is disclosed herein. The system includes at least two receivers and an attitude determination circuit. The receivers each include an antenna. The antenna is capable of receiving GPS signals. Each receiver also produces a representation of the received GPS signal by estimating how fast the distance from a GPS satellite to the antenna is changing by determining a rate of change of a locally generated code sequence as it changes to approximate the GPS signal transmitted by the GPS satellite. The attitude determination circuit calculates platform attitude from the rate of change determined by the receivers.

대표청구항 ▼

1. A system for attitude determination of a platform in global positioning systems (GPS), the system comprising:at least two receivers, a first receiver and a second receiver, the receivers each including an antenna, the antenna capable of receiving GPS signals, each receiver producing a representat

1. A system for attitude determination of a platform in global positioning systems (GPS), the system comprising:at least two receivers, a first receiver and a second receiver, the receivers each including an antenna, the antenna capable of receiving GPS signals, each receiver producing a representation of the received GPS signals, each receiver using a second order code tracking loop to provide an estimated measurement of a velocity of the receiver at the antenna to estimate how fast a distance from a GPS satellite to the antenna is changing; and an attitude determination circuit, the attitude determination circuit calculating platform attitude from the velocity estimated by the receivers.