US 2024/0402292 A1 · SIGNAL SENDING METHOD AND APPARATUS

Abstract

The present disclosure relates to signal sending methods and apparatuses. One example method includes determining, based on a quantity T of transmit antennas of a radar and a quantity NC of signals transmitted through each transmit antenna in a frame, T codeword sequences that are in a one-to-one correspondence with T transmit antennas, where each of the T codeword sequences includes NC codewords, each codeword sequence is used to process NC signals of a transmit antenna, T>1, NC≥1, both T and NC are integers, a Doppler spectrum corresponding to the T codeword sequences includes a first region corresponding to a main lobe, and a second region and a third region that correspond to side lobes, and a maximum peak value of the side lobe in the second region is less than a maximum peak value of the side lobe in the third region.

Claims20

Dependent claims

A method, comprising:

determining, based on a quantity T of transmit antennas of a radar and a quantity NC of signals transmitted through each transmit antenna in a frame, T codeword sequences that are in a one-to-one correspondence with T transmit antennas, wherein each of the T codeword sequences comprises NC codewords, each codeword sequence is used to process NC signals of a transmit antenna, T>1, NC≥1, both T and NC are integers, a Doppler spectrum corresponding to the T codeword sequences comprises a first region, a second region, and a third region, the first region corresponding to a main lobe, the second region corresponding to a first side lobe, the third region corresponding to a second side lobe, and a maximum peak value of the first side lobe in the second region is less than a maximum peak value of the second side lobe in the third region;
and
sending, through the T transmit antennas, signals processed by using the T codeword sequences.

An apparatus, comprising:

at least one processor;
and
at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
determine, based on a quantity T of transmit antennas of a radar and a quantity NC of signals transmitted through each transmit antenna in a frame, T codeword sequences that are in a one-to-one correspondence with T transmit antennas, wherein each of the T codeword sequences comprises NC codewords, each codeword sequence is used to process NC signals of a transmit antenna, T>1, NC≥1, both T and NC are integers, a Doppler spectrum corresponding to the T codeword sequences comprises a first region, a second region, and a third region, the first region corresponding to a main lobe, the second region corresponding to a first side lobe, the third region corresponding to a second side lobe, and a maximum peak value of the first side lobe in the second region is less than a maximum peak value of the second side lobe in the third region;
and
send, through the T transmit antennas, signals processed by using the T codeword sequences.

3 more elements

Dependencies are inferred from the claim text.

Signal sending method and apparatus

Life of this patent

Signal sending method and apparatus

Life of this patent

Abstract

Claims20