Phased array automotive radar
A system comprises a first phased array radar assembly configured to be attached to a vehicle. The first phased array radar assembly includes a first plurality of antennas arranged in an array and attached to a circuit board. The system also includes one or more circuits attached to the circuit board. Each of the one or more circuits includes transmitter circuitry communicatively coupled to a subset of the first plurality of antennas and receiver circuitry communicatively coupled to the subset of the first plurality of antennas.
1. A system, comprising:
a first phased array radar assembly, wherein the first phased array radar assembly comprises:
a first plurality of antennas arranged in an array;
one or more circuits, wherein each of the one or more circuits comprises:
receiver circuitry communicatively coupled to the first plurality of antennas,
the one or more circuits being operable to receive a signal via at least one of the first plurality of antennas, the signal being indicative of a characteristic of an environment, where the signal is used by a processor to generate a multidimensional representation of a scene based on the characteristic of the environment,
wherein at least one of the one or more circuits includes or is coupled to at least one digital signal processor (DSP) operable to:
apply a phase shift on the signal; and
combine the phased shifted signal with a second signal to achieve beamforming.
2. The system of claim 1 , wherein the signal includes a reflection.
3. The system of claim 1 , wherein at least one of the one or more circuits includes or is coupled to at least one low-noise amplifier (LNA).
4. The system of claim 1 , wherein at least one of the one or more circuits includes or is coupled to at least one power amplifier (PA).
5. The system of claim 1 , at least one of the one or more circuits includes transmitter circuitry, the receiver circuitry and the transmitter circuitry forming a first transceiver, the at least one DSP being dedicated to the first transceiver.
6. The system of claim 1 , wherein at least one of the one or more circuits includes or is coupled to at least a portion of a circulator.
7. The system of claim 1 , further comprising a second phased array radar assembly comprising a second plurality of antennas operable to communicate wirelessly with the first plurality of antennas of the first phased array radar assembly.
8. The system of claim 7 , the second plurality of antennas coupled to a second transceiver.
9. The system of claim 7 , the first phased array radar assembly being pointed in a first direction, the second phased array radar assembly being pointed in a second direction.
10. The system of claim 9 , the first direction being different than the second direction.
11. The system of claim 9 , the first phased array radar assembly being configured to mount to a vehicle in a first location, the second phased array radar assembly being configured to mount to the vehicle in a second location.
12. The system of claim 11 , the first location being at a first end of the vehicle, the second location being either at a second end of the vehicle or a side of the vehicle.
13. The system of claim 1 , the scene including at least an environmental representation of a three-dimensional space.
14. The system of claim 13 , the scene including at least two objects detected by the system in the three-dimensional space.
15. The system of claim 1 , further comprising circuitry operable to process a millimeter wave signal received by at least one antenna of the first plurality of antennas.
16. The system of claim 15 , the millimeter wave signal being in a band from 76 to 81 gigahertz (GHz).
17. The system of claim 1 , the signal including an analog signal.
18. The system of claim 1 , the multidimensional representation of a scene including at least one point in space.