US 2024/0201357 A1 · OBJECT SENSING METHOD AND RADAR APPARATUS

Abstract

An object sensing method and a radar apparatus are provided. In the method, initial sensing data is obtained through a single antenna. The initial sensing data is generated according to an echo received by the single antenna. The initial sensing data includes sensing intensities of multiple time points. The initial sensing data is converted into pre-processing sensing data. The pre-processing sensing data includes a corresponding relationship between multiple distances and the sensing intensities at those time points. One or more feature parameters of the pre-processing sensing data are obtained. The feature parameters respond to the existence of one or more objects. Inertia of the feature parameter between those time points is determined. The inertia is a period when the object exists at those time points. The number of objects is determined according to inertia. Accordingly, the accuracy of number estimation is improved.

Claims20

Dependent claims

An object sensing method, adapted to a single antenna radar, comprising:

obtaining initial sensing data through a single antenna, wherein the initial sensing data is generated according to an echo received by the single antenna, and the initial sensing data comprises sensing intensities of a plurality of time points;
converting the initial sensing data into pre-processing sensing data, wherein the pre-processing sensing data comprises a corresponding relationship between a plurality of distances and the sensing intensities at the time points;
obtaining at least one feature parameter in the pre-processing sensing data, wherein the at least one feature parameter responds to existence of at least one object;
determining an inertia of the at least one feature parameter between the time points, wherein the inertia is a period during which the at least one object exists at the time points;
and
determining a number of the at least one object according to the inertia.

3 more elements

A radar apparatus, comprising:

a single antenna;
a transmitting circuit, coupled to the single antenna, and configured to transmit a sensing signal;
a receiving circuit, coupled to the single antenna, and configured to receive an echo of the sensing signal;
and
a processor, coupled to the receiving circuit, configured to convert initial sensing data corresponding to the echo into pre-processing sensing data, and calculating a number of at least one object corresponding to the pre-processing sensing data, wherein the initial sensing data comprises sensing intensities of a plurality of time points, and the pre-processing sensing data comprises a corresponding relationship between a plurality of distances and the sensing intensities at the time points.

2 more elements

Dependencies are inferred from the claim text.

Object sensing method and radar apparatus

Life of this patent

Object sensing method and radar apparatus

Life of this patent

Abstract

Claims20