Ranging method and apparatus

A ranging method, comprising:

• sending, by a receive end, a first ranging parameter to a transmit end, wherein the first ranging parameter is sent in an Nth time of ranging, and the first ranging parameter comprises at least one of a first ranging precision of a ranging signal and/or a first signal-to-noise ratio of the ranging signal;
• receiving, by the receive end, a first ranging waveform from the transmit end, wherein the first ranging waveform is generated based on the first ranging parameter;
• determining, by the receive end, a second ranging parameter based on the first ranging waveform, wherein the second ranging parameter comprises at least one of a second ranging precision of the ranging signal and/or a second signal-to-noise ratio of the ranging signal, and a value of the second ranging precision is less than a value of the first ranging precision;
• and
• when a value of the second ranging parameter does not meet a threshold of a system, performing, by the receive end, an (N+1)th time of ranging, or when a value of the second ranging parameter meets a threshold of a system, ending, by the receive end, ranging, wherein
• N is an integer greater than 0.

A ranging apparatus, comprising:

• at least one processor, wherein the at least one processor is configured to execute a computer program stored in a memory, to enable the ranging apparatus to:
• receive a first ranging parameter from a receive end, wherein the first ranging parameter is received in an Nth time of ranging, and the first ranging parameter comprises at least one of a first ranging precision of a ranging signal and/or a first signal-to-noise ratio of the ranging signal;
• determine a first ranging waveform based on the first ranging parameter;
• send the first ranging waveform to the receive end;
• receive a second ranging parameter from the receive end, wherein the second ranging parameter is determined based on the first ranging waveform, and the second ranging parameter comprises at least one of a second ranging precision of the ranging signal and/or a second signal-to-noise ratio of the ranging signal, wherein a value of the second ranging precision is less than a value of the first ranging precision;
• and
• when a value of the second ranging parameter does not meet a threshold of a system, perform an (N+1)* time of ranging, or when a value of the second ranging parameter meets the threshold of the system, end ranging, wherein
• N is an integer greater than 0.