Navigation system
First Claim
Patent Images
1. A navigation system comprising:
- a single antenna radar device comprising;
a circulator;
a transmitter in signal communication with the circulator for transmitting a radar signal using closed-loop modulation;
a receiver in signal communication with the circulator and the transmitter, the receiver configured to receive reflections of the transmitted radar signal; and
an analog-to-digital converter in signal communication with the receiver for outputting a digital signal of the received reflections;
a chassis remotely located from the single antenna radar device, the chassis comprising;
a radar altimeter processing component;
an instrument landing system (ILS) component;
an inertial navigation system (INS) component;
a global positioning system (GPS) receiver component; and
a controller being in data communication with the radar altimeter processing component, the ILS component, the INS component, and the GPS receiver component; and
a data communication device coupled to the single antenna radar device and the controller, the data communication device includes at least one of an Ethernet cable or a fiber optics cable.
1 Assignment
0 Petitions
Accused Products
Abstract
A radar altimeter system with a closed-loop modulation for generating more accurate radar altimeter values. The present invention combines flight safety critical sensors into a common platform to permit autonomous or semi-autonomous landing, enroute navigation and complex precision approaches in all weather conditions. An Inertial Navigation System (INS) circuit board, a radar altimeter circuit board and a Global Navigation Satellite System (GNSS) circuit board are housed in a single chassis. VHF (Very High Frequency) Omni-directional Radio (VOR), Marker Beacon (MB), and VDB (VHF Data Broadcast) receiver circuit boards may also be implemented on circuit boards in the chassis.
31 Citations
8 Claims
-
1. A navigation system comprising:
-
a single antenna radar device comprising; a circulator; a transmitter in signal communication with the circulator for transmitting a radar signal using closed-loop modulation; a receiver in signal communication with the circulator and the transmitter, the receiver configured to receive reflections of the transmitted radar signal; and an analog-to-digital converter in signal communication with the receiver for outputting a digital signal of the received reflections; a chassis remotely located from the single antenna radar device, the chassis comprising; a radar altimeter processing component; an instrument landing system (ILS) component; an inertial navigation system (INS) component; a global positioning system (GPS) receiver component; and a controller being in data communication with the radar altimeter processing component, the ILS component, the INS component, and the GPS receiver component; and a data communication device coupled to the single antenna radar device and the controller, the data communication device includes at least one of an Ethernet cable or a fiber optics cable. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A navigation radio unit being in digital data communication with a radar system, the unit comprising:
-
a controller for sending signals to the radar system for transmission and receiving digital signals from the radar system via at least one of an Ethernet cable or a fiber optics cable; a radar altimeter processing component coupled to the controller; an instrument landing system (ILS) component; an inertial navigation system (INS) component; and a global positioning system (GPS) receiver components wherein the received digital signals are digitized radar reflections of a transmitted radar signals generated using closed-loop modulation. - View Dependent Claims (7, 8)
-
Specification