Ethernet connection of airborne radar over fiber optic cable

Active Publication Date: 2007-01-02
ROCKWELL COLLINS INC
View PDF19 Cites 45 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]An Ethernet connection of airborne radar systems over a fiber optic cable link is disclosed. The invention uses a fiber optic cable signal path to meet the increased radar throughput requirement. By digitizing the radar pulse pairs in high proximity to the antenna/receiver and replacing waveguide transmission of ana

Problems solved by technology

First, electric power must be supplied to the antenna for its various movements, which require mechanical operation.
For one thing, in a conventional system, signals are conducted from the antenna to a receiver (at the processing array) through a waveguide, which typically incurs a 2–5 dB loss in transmission.
As more radar data are

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ethernet connection of airborne radar over fiber optic cable
  • Ethernet connection of airborne radar over fiber optic cable
  • Ethernet connection of airborne radar over fiber optic cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016]A system and method for an Ethernet connection of airborne radar systems over a fiber optic cable link is disclosed. In the description that follows, numerous specific details are set forth in detail to provide a more thorough understanding of the present invention. It will be apparent, however, to one ordinarily skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail so as not to obscure the present invention.

[0017]Reference is first made to FIG. 1, where a simplified diagram of the weather radar system in accordance with the present invention is shown. It should be noted that the simplified FIG. 1 only shows the functional blocks that are germane to the understanding of the present invention. As illustrated, an antenna unit 105 is placed inside the radome 100 at the front tip of an aircraft. A digital down-converter (“DDC”) 120 is coupled to the antenna unit 105 thro

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A weather radar signal path for an aircraft. The signal path has an antenna, a digital down-converter, a first transceiver, fiber optic cabling, a second transceiver and a processing unit. The antenna is adapted to, in a first mode, receive reflected radar signals from atmosphere ahead. The digital down-converter is adapted to convert the reflected radar signals received by the antenna into digital radar signals at a lower frequency. The first transceiver is adapted to, in the first mode, at least transmit the digital radar signals through said fiber optic cabling. The fiber optic cabling is adapted to, in the first mode, transfer the digital radar signals between the first and second transceivers. The second transceiver is adapted to, in the first mode, receive said digital radar signals from the fiber optic cabling. The processing unit is adapted to, in the first mode, process the digital radar signals to generate weather information based on predetermined algorithm.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Owner ROCKWELL COLLINS INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products