MULTI-MODE MULTI-INPUT MULTI-OUTPUT (MIMO) RADAR SENSORS
First Claim
1. A multi-input multi-output (MIMO) radar sensor comprising:
- a receiver module including an array of receiver antenna elements to receive radar signals;
a transmitter module including an array of transmitter antenna elements, groups of the transmitter antenna elements forming transmitter chains, each of the transmitter chains to be driven by a signal that is orthogonal to the other transmitter chains, the receiver antenna elements and the transmitter antenna elements spaced to produce a predetermined horizontal pitch and a predetermined vertical pitch in a virtual array; and
a control system to;
in a first mode, activate a first set of the transmitter antenna elements of each of the transmitter chains; and
in a second mode, activate a second set of the transmitter antenna elements of each of the transmitter chains, the second set being larger than the first set, the transmitter antenna elements arranged such that distances between phase centers of the transmitter chains in the first mode and the second mode are the same.
1 Assignment
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Accused Products
Abstract
Multi-mode multi-input multi-output (MIMO) radar sensors are described herein. An example MIMO radar sensor includes a receiver module including an array of receiver antenna elements to receive radar signals and a transmitter module including an array of transmitter antenna elements. Groups of the transmitter antenna elements form transmitter chains. The example MIMO radar sensor further includes a control system to, in a first mode, activate a first set of the transmitter antenna elements of each of the transmitter chains, and, in a second mode, activate a second set of the transmitter antenna elements of each of the transmitter chains, where the second set is larger than the first set. The transmitter antenna elements are arranged such that distances between phase centers of the transmitter chains in the first mode and the second mode are the same.
22 Citations
24 Claims
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1. A multi-input multi-output (MIMO) radar sensor comprising:
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a receiver module including an array of receiver antenna elements to receive radar signals; a transmitter module including an array of transmitter antenna elements, groups of the transmitter antenna elements forming transmitter chains, each of the transmitter chains to be driven by a signal that is orthogonal to the other transmitter chains, the receiver antenna elements and the transmitter antenna elements spaced to produce a predetermined horizontal pitch and a predetermined vertical pitch in a virtual array; and a control system to; in a first mode, activate a first set of the transmitter antenna elements of each of the transmitter chains; and in a second mode, activate a second set of the transmitter antenna elements of each of the transmitter chains, the second set being larger than the first set, the transmitter antenna elements arranged such that distances between phase centers of the transmitter chains in the first mode and the second mode are the same. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. At least one non-transitory computer-readable medium comprising instructions that, when executed, cause at least one processor to at least:
alternate between activating transmitter chains of a transmitter module in a first mode for a first period of time and activating the transmitter chains in a second mode for a second period of time, each of the transmitter chains having a plurality of transmitter elements, each of the transmitter chains to be driven by a signal that is orthogonal to the other transmitter chains, the transmitter chains activated in the first mode by activating a first set of the transmitter antenna elements of each of the transmitter chains, the transmitter chains activated in the second mode by activating a second set of the transmitter antenna elements of each of the transmitter chains, the second set being larger than the first set, the transmitter antenna elements arranged such that distances between phase centers of the transmitter chains in the first mode and the second mode are the same. - View Dependent Claims (18, 19, 20)
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21. A method comprising:
alternating, by executing an instruction with at least one processor, between activating transmitter chains of a transmitter module in a first mode for a first period of time and activating the transmitter chains in a second mode for a second period of time, each of the transmitter chains having a plurality of transmitter elements, each of the transmitter chains to be driven by a signal that is orthogonal to the other transmitter chains, the transmitter chains activated in the first mode by activating a first set of the transmitter antenna elements of each of the transmitter chains, the transmitter chains activated in the second mode by activating a second set of the transmitter antenna elements of each of the transmitter chains, the second set being larger than the first set, the transmitter antenna elements arranged such that distances between phase centers of the transmitter chains in the first mode and the second mode are the same. - View Dependent Claims (22, 23, 24)
Specification