Location system for a flying craft

Patent metadata

Field	Value
Publication number	US-9348011-B2
Application number	US-201213607739-A
Country	US
Kind code	B2
Filing date	Sep 9, 2012
Priority date	Sep 9, 2011
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A location and guidance system including a flying craft and a reception device. The flying craft includes a plurality of antennas distributed around its fuselage and emitting rearwards with rectilinear polarization, the emitted signals being specific to each antenna, the positions and the dimensions of the antennas being configured such that the body of the flying craft avoids by masking for at least one antenna the reflections of the signal emitted by this antenna off the ground or off lateral obstacles whatever the position of the flying craft. The reception device is placed substantially on a trajectory axis of the flying craft and configured to be oriented to sight the rear thereof and includes at least two single-pulse antennas operating in orthogonal planes determines a position of the flying craft by analyzing the emitted signals received by the antennas of the reception device.

First claim

The invention claimed is:

1. A flying craft comprising:
a plurality of antennas distributed around a fuselage of the flying craft and configured to emit signals rearwards from the flying craft with rectilinear polarization, the emitted signals being specific to each antenna, positions and dimensions of the antennas being configured such that the fuselage of the flying craft avoids by masking for at least a first one of the antennas reflections of the signal emitted by the first antenna off the ground or off lateral obstacles irrespective of a position of the flying craft; and
a reception device comprising:
a plurality of monopulse antennas pointed in a same direction of sighting and operating in orthogonal planes; and
means for identifying and processing, separately, signals received from respective antennas of the flying craft, such that signals emitted by separate antennas are identified and processed separately, and for automatically detecting and rejecting received signals disturbed by reflections.

2. The flying craft according to claim 1 , wherein the antennas are embodied on a basis of rectilinear microwave leakage lines, and are disposed substantially perpendicular to the fuselage of the flying craft.

3. The flying craft according to claim 1 , further comprising fins serving to guide the flying craft, wherein the antennas are fixed to the fins.

Assignees

• Cornic Pascal
• Garrec Patrick
• Artis Jean-Paul
• Thales Sa

Inventors

• Cornic Pascal
• Garrec Patrick
• Artis Jean-Paul

Classifications

• G01S1/14 Primary

  using amplitude comparison of signals transmitted simultaneously from antennas or antenna systems having differently oriented overlapping directivity-characteristics · CPC title

• F41G7/301

  Details · CPC title

• G01S5/0247 Primary

  Determining attitude · CPC title

• F41G7/305

  for spin-stabilized missiles · CPC title