RADAR SYSTEM WITH WAVELENGTH INDEPENDENT ANTENNA ARRAY
A radar system comprises a physical radar array comprising a plurality of physical transmit antennas, each configured to transmit a respective signal having a wavelength λ. The physical radar array further comprises a plurality of physical receive antennas, each configured to receive each of the respective signals. The radar system further comprises a neural network configured to receive data from the physical radar array and generate data corresponding to an emulated array of antennas, wherein a defined distance between each antenna of the emulated array of antennas is λ/2.
1 . A radar system comprising:
a physical radar array comprising:
a plurality of physical transmit antennas; and
a plurality of physical receive antennas; and
a neural network arranged to receive data from the physical radar array and generate data corresponding to an emulated array of antennas, wherein a defined distance between each antenna of the emulated array of antennas is equal.
2 . The radar system of claim 1 , wherein a defined distance between each antenna of the emulated array of antennas is λ/2.
3 . The radar system of claim 1 , wherein a distance between each physical receive antenna of the plurality of physical receive antennas is inconsistent.
4 . The radar system of claim 1 , further comprising a processor coupled to the physical radar array and arranged to generate data corresponding to a virtual antenna array, wherein the data received by the neural network includes the data corresponding to the virtual antenna array.
5 . The radar system of claim 1 , wherein the plurality of physical transmit antennas are arranged in both a horizontal direction and in a vertical direction.
6 . The radar system of claim 1 , wherein the generated data corresponding to the emulated array of antennas includes data for a two-dimensional emulated array of antennas.
7 . The radar system of claim 1 , wherein the neural network generates both horizontal and azimuth data corresponding to the emulated array of antennas.
8 . The radar system of claim 6 , wherein a horizontal distance and an azimuth distance between each antenna of the emulated array of antennas is λ/2.
9 . A radar system comprising:
a physical antenna array comprising:
a plurality of physical transmit antennas; and
a plurality of physical receive antennas; and
a processor coupled to the physical antenna array and arranged to:
generate data for a virtual antenna array using data received from the physical antenna array; and
generate, using a neural network, data for an emulated array of antennas, wherein the neural network uses the generated data for the virtual antenna array.
10 . The radar system of claim 9 , wherein the generated data for the virtual antenna array corresponds to virtual antennas having an inconsistent spacing between adjacent antennas.
11 . The radar system of claim 9 , wherein a defined distance between each antenna of the emulated array of antennas is equal.
12 . The radar system of claim 9 , wherein a defined distance between each antenna of the emulated array of antennas is λ/2.
13 . The radar system of claim 9 , wherein a distance between each physical receive antenna of the plurality of physical receive antennas is inconsistent.
14 . The radar system of claim 9 , wherein the plurality of physical transmit antennas are arranged in both a horizontal direction and in a vertical direction.
15 . The radar system of claim 9 wherein the generated data for the emulated array of antennas includes data for a two-dimensional emulated array of antennas.
16 . The radar system of claim 9 , wherein the neural network generates both horizontal and azimuth data for the emulated array of antennas.
17 . The radar system of claim 16 , wherein a horizontal distance and an azimuth distance between each adjacent antenna of the emulated array of antennas is λ/2.
18 . A method of operating a radar system, the method comprising:
generating first data from a physical antenna array, wherein the physical antenna array comprises:
a plurality of physical transmit antennas; and
a plurality of physical receive antennas; and
generating, using a neural network, second data for an emulated array of antennas wherein the neural network uses the first data.
19 . The radar system of claim 18 , wherein a defined distance between each antenna of the emulated array of antennas is equal.
20 . The radar system of claim 18 , wherein the neural network generates both horizontal and azimuth data for the emulated array of antennas.