Multi-dimensional beamforming device
First Claim
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1. A multidimensional beamforming device, comprising:
- a multidimensional sensor array that provides array signals, the sensor array including a first plurality of sensor elements extending in a first direction and a second plurality of sensors extending in a second direction;
a first beamforming tapped delay line device, coupled to the multidimensional sensor array, that generates delayed output signals based on the array signals; and
a second beamforming tapped delay line device, that receives the delayed output signals from, the first tapped delay line device, the second tapped delay line device generating a multidimensional representation of a region of interest based on the delayed output signals.
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Abstract
A multi-dimensional beamforming device that performs consecutive one-dimensional operations. For example, beamsteering for a two-dimensional array can be include a projection of a beam onto each of the respective axes of the array. In such a device, a first beamforming processing element is used to form multiple beams for each array output along a given row. In a preferred embodiment, sequential output vectors from the first processing element are then applied to a transposing or corner turning memory and the data are reformatted such that all elements on a given column of the array are applied to a second beam forming processing element.
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Citations
25 Claims
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1. A multidimensional beamforming device, comprising:
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a multidimensional sensor array that provides array signals, the sensor array including a first plurality of sensor elements extending in a first direction and a second plurality of sensors extending in a second direction; a first beamforming tapped delay line device, coupled to the multidimensional sensor array, that generates delayed output signals based on the array signals; and a second beamforming tapped delay line device, that receives the delayed output signals from, the first tapped delay line device, the second tapped delay line device generating a multidimensional representation of a region of interest based on the delayed output signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for beamforming comprising steps of:
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obtaining array signals from a multidimensional sensor array which includes a first plurality of sensor elements extending in a first direction and a second plurality of sensors extending in a second direction; programming a first programmable tapped delay line device to generate delayed output signals based on the array signals; and programming a second programmable tapped delay line device that receives the delayed output signals, to generate a multidimensional representation of a region of interest based on the delayed output signals. - View Dependent Claims (11, 12, 13, 14)
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15. A multidimensional beamforming device comprising:
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a multidimensional sensor array including a first plurality of sensor elements extending in a first direction and a second plurality of sensors extending in a second direction; a first programmable tapped delay line device that receives signals from the sensor array and that generates delayed output signals; and a second programmable tapped delay line device that is electrically connected to the first programmable tapped delay line device and that receives the delayed output signals, the second programmable tapped delay line device generating a multidimensional representation of a region of interest. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification