DISTANCE MEASUREMENT
First Claim
1. A distance measurement arrangement (DDM) that provides a distance indication (DV) on the basis of a delay between an electromagnetic signal (TB), which is transmitted inn a transmission mode, and a reflection (RB) of the electromagnetic signal, which is received in a reception mode, the distance measurement arrangement comprising:
- an antenna module (AM) comprising a plurality of antennas (ANT) for transmitting the electromagnetic signal and for receiving the reflection thereof;
a beam-forming module (BF) for defining respective magnitude and phase relationships with respect to respective antennas in the antenna module so as to cause the antenna module to provide a directional antenna pattern in at least one of the two aforementioned modes.
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Accused Products
Abstract
A distance measurement arrangement (DDM) provides a distance indication (DV) on the basis of a delay between an electromagnetic signal (TB), which is transmitted in a transmission mode, and a reflection (RB) of the electromagnetic signal, which is received in a reception mode. The distance measurement arrangement includes an antenna module (AM) comprising a plurality of antennas for transmitting the electromagnetic signal (TB) and for receiving the reflection (RB) thereof. A beam-forming module (BF) defines respective magnitude and phase relationships with respect to respective antennas so as to cause the antenna module (AM) to provide a directional antenna pattern in at least one the two aforementioned modes. Preferably, a beam-forming and steering control module (BC) controls the respective magnitude and phase relationships as a function of a direction command (DIR). A 3-D picture can be formed by applying respective direction commands (DIR) so as to obtain respective distance indications (DV) for respective portions in a two-dimensional picture.
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Citations
14 Claims
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1. A distance measurement arrangement (DDM) that provides a distance indication (DV) on the basis of a delay between an electromagnetic signal (TB), which is transmitted inn a transmission mode, and a reflection (RB) of the electromagnetic signal, which is received in a reception mode, the distance measurement arrangement comprising:
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an antenna module (AM) comprising a plurality of antennas (ANT) for transmitting the electromagnetic signal and for receiving the reflection thereof; a beam-forming module (BF) for defining respective magnitude and phase relationships with respect to respective antennas in the antenna module so as to cause the antenna module to provide a directional antenna pattern in at least one of the two aforementioned modes. - View Dependent Claims (2, 3, 4, 5, 6, 9)
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7. A method of distance measurement comprising:
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a transmission step in which an electromagnetic signal (TB) is transmitted; a reception step in which a reflection (RB) of the electromagnetic signal is received; a distance determination step in which a distance indication (DV) is provided on the basis of a delay between the electromagnetic signal, which is transmitted in the transmission step, and the reflection of the electromagnetic signal, which is received in the reception step; and a beam-forming step in which respective magnitude and phase relationships with respect to respective antennas (ANT) in an antenna module (AM) are defined so as to cause the antenna module to provide a directional antenna pattern in at least one of the following two aforementioned steps;
the transmission step and the reception step. - View Dependent Claims (8, 10, 11, 12, 13, 14)
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Specification