Back to results
US 12,631,721 B2Granted
Method for controlling radar frequency hopping, apparatus, radar speed measurement method, and radar
AssigneeShenzhen Yinwang Intelligent Technologies Co., Ltd.
InventorsSida Song, Sha Ma, Lei Gao
Life of this patent
Estimating the term…
Abstract
A method for controlling radar frequency hopping includes determining start frequencies of a plurality of frequency modulated continuous wave (FMCWs) based on a first function, and controlling a radar to sequentially transmit the plurality of FMCWs by performing frequency hopping based on the determined start frequencies.
Claims20
A method for controlling radar frequency hopping, comprising:
- determining start frequencies of a plurality of frequency-modulated continuous waves (FMCWs) based on a first function such that a difference between the start frequencies of any two adjacent FMCWs in a transmission sequence is greater than a first threshold, wherein the first function is:
- b
- k
- =
- β
- +
- α
- -
- β
- k
- ,
- k
- =
- 1
- ,
- 2
- ,
- …
-
- M
- ,
- wherein M is an integer ≥2,
- wherein bk is a start frequency of the kth FMCW, k is a sequence number of each FMCW, α, β are frequency hopping parameters, and M is a quantity of the plurality of FMCWs, and wherein the first threshold is based on a preconfigured rule;
- and
- controlling a radar to sequentially transmit the plurality of FMCWs by performing frequency hopping based on the start frequencies.
22 more elements
A radar speed measurement method, comprising:
- determining start frequencies using a first function such that a difference between the start frequencies of any two adjacent frequency-modulated continuous waves (FMCWs) in a plurality of FMCWs in a transmission sequence is greater than a first threshold, wherein the first function is:
- b
- k
- =
- β
- +
- α
- -
- β
- k
- ,
- k
- =
- 1
- ,
- 2
- ,
- …
-
- M
- ,
- wherein M is an integer ≥2,
- wherein bk is a start frequency of the kth FMCW, k is a sequence number of each FMCW, α, β are frequency hopping parameters, and M is a quantity of the plurality of FMCWs;
- controlling a radar to sequentially transmit the plurality of FMCWs to a target by performing frequency hopping based on the start frequencies;
- receiving a reflected signal reflected back by the target in response to the FMCWs;
- and
- calculating a relative speed of the target relative to the radar based on the reflected signal.
24 more elements
A radar comprising:
- a memory configured to store instructions;
- and
- a processor coupled to the memory and configured to execute the instructions to cause the radar to:
- sequentially transmit a plurality of frequency-modulated continuous waves (FMCWs) to a target by performing frequency hopping based on start frequencies determined using a first function such that a difference between the start frequencies of any two adjacent FMCWs in a transmission sequence is greater than a first threshold, wherein the first function is:
- b
- k
- =
- β
- +
- α
- -
- β
- k
- ,
- k
- =
- 1
- ,
- 2
- ,
- …
-
- M
- ,
- wherein M is an integer ≥2,
- wherein bk is a start frequency of the kth FMCW, k is a sequence number of each FMCW, α, β are frequency hopping parameters, and M is a quantity of the plurality of FMCWs, and wherein the first threshold is based on a preconfigured rule;
- receive a reflected signal reflected back from the target;
- and
- calculate a relative speed of the target relative to the radar based on the reflected signal.
26 more elements
Dependencies are inferred from the claim text.