Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Frequency hopping data link approach to autonomous GPS denied relative navigation determination










Image Number 2 for United States Patent #8010287.

The present invention is directed to accurate GPS (global positioning system)-free relative navigation between an unmanned aerial vehicle (UAV) and a tanker aircraft. The UAV transmits a signal which is received by an antenna array at the tanker aircraft. Horizontal relative position of the UAV is determined by calculating range and bearing based on time and phase differences in the received signal. Vertical relative position of the UAV is determined by comparing the altitude of the UAV with the altitude of the tanker aircraft. The tanker aircraft then transmits a navigation solution based on the relative position of the UAV which is received by the UAV. The UAV may utilize the navigation solution transmitted by the tanker aircraft as a backup to a GPS determined navigation solution, in a GPS denied scenario, or in combination with an INS (inertial navigation system) determined navigation solution.








 
 
  Recently Added Patents
Gyroscope utilizing torsional springs and optical sensing
Wireless network device including a polarization and spatial diversity antenna system
Collaborative data redundancy for configuration tracking systems
Topology discovery, control channel establishment, and datapath provisioning within an aggregation network with centralized control
Optical coherence tomography with multiple sample arms
Per-request control of DNS behavior
LED illumination systems
  Randomly Featured Patents
Systems and methods for dynamically configuring node behavior in a sensor network
Zirconium alloy containing isotopic erbium
Antibiotic produced from the microorganism (Pseudomonas lindbergii), its preparation and method of use
Magnetic transduction device with magnetoresistances
Multi-objective optimization within a constraint management system
Slit exposure device with white reflecting member
Stamped knitting tool for knitting machines
Inspection method and inspection apparatus
System and method for remote communication of traffic monitoring device data
Cross-talk cancellation