High-resolution synthetic aperture radar device and antenna for one such radar
AssigneeAstrium GmbH
InventorsBernhard Grafmueller, Christoph Schaefer
Life of this patent
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Abstract
The invention relates to a high-resolution synthetic aperture radar device (10) comprising at least one transmitting antenna (TX1-TX3) for producing and emitting radar pulses for scanning an object (12), a receiving antenna (14) for receiving the radar beams (20, 22, 24) emitted and reflected by an object, wherein the receiving antenna (14) has several sub-apertures (RX1-RX17) arranged along elevation, which form a minimum of azimuth apertures, wherein the high-resolution synthetic aperture radar device is embodied such that pulse signals (18) are emitted at irregular time intervals.
Claims23
A high-resolution synthetic aperture radar device comprising:
- a plurality of transmitting antennas for producing plural radar beams for scanning an object;
- a receiving antenna for receiving the plural radar beams reflected by the object, the receiving antenna comprising several sub-apertures arranged in elevation,
- wherein each of the plural radar beams includes a pulse signal emitting a pulse at a predefined rate, and the predefined rates of the pulse signals have irregular time intervals.
The high-resolution synthetic aperture radar device comprising:
- at least two transmitting antennas for producing radar beams with pulse signals for scanning an object,
- wherein the at least two transmitting antennas are simultaneously operable in a frequency multiplex.
A method for a high-resolution synthetic aperture radar device, comprising:
- producing plural radar beams for scanning an object from a plurality of transmitting antennas;
- receiving the plural radar beams reflected by the object with a receiving antenna comprising several sub-apertures arranged in elevation;
- and
- emitting pulses at predefined rates as pulse signals in the produced radar beams, wherein the predefined rates of the pulse signals have irregular time intervals.
A high-resolution synthetic aperture radar device comprising:
- at least one transmitting antenna for producing plural radar beams;
- and
- a receiving antenna for receiving radar beams reflected by the object, the receiving antenna comprising several sub-apertures arranged in elevation,
- wherein the plural radar beams include plural pulse signals, in which pulses of at least one of the plural pulse signals are emitted at a time interval different from pulses of at least one other of the plurality of pulse signals.
Dependencies are inferred from the claim text.