US 11,635,489 B2 · Phase calibration of a radar system with crosstalk cancellation

Abstract

A method for the use in a radar system is described herein. In accordance with one embodiment, the method includes providing a local oscillator signal to an RF output channel of a radar system. The RF output channel is configured to generate, in an enabled state, an RF output signal based on the local oscillator signal. The method further includes determining a first measurement signal based on the local oscillator signal and a first representation of the RF output signal, while the RF output channel is disabled, and thus the first measurement signal represents crosstalk. Further, the method includes determining a second measurement signal based on the local oscillator signal and a second representation of the RF output signal while the RF output channel is enabled. A phase value associated with the RF output channel is determined based on the first measurement signal and the second measurement signal.

Claims16

Dependent claims

A method, comprising:

providing a local oscillator signal to an RF output channel of a radar system, the RF output channel being configured to generate, in an enabled state, an RF output signal based on the local oscillator signal;
determining a first measurement signal based on the local oscillator signal and a first representation of a crosstalk signal while the RF output channel is disabled, the crosstalk signal being based on the local oscillator signal, and wherein the first measurement signal represents crosstalk based on the local oscillator signal when the RF output channel is disabled;
determining a second measurement signal based on the local oscillator signal and a second representation of the RF output signal while the RF output channel is enabled,
wherein the second representation of the RF output signal is generated based on the RF output channel being enabled;
and
determining a phase value associated with the RF output channel based on the first measurement signal and the second measurement signal.

3 more elements

A radar system, comprising:

a local oscillator providing a local oscillator signal to an RF output channel of a radar system, the RF output channel being configured to generate, when in an enabled state, an RF output signal based on the local oscillator signal;
a circuit configured to determine a first measurement signal based on the local oscillator signal and a first representation of a crosstalk signal while the RF output channel is in a disabled state, the crosstalk signal being based on the local oscillator signal, and wherein the first measurement signal represents crosstalk based on the local oscillator signal when the RF output channel is disabled, and the circuit is further configured to determine a second measurement signal based on the local oscillator signal and a second representation of the RF output signal while the RF output channel is in an enabled state,
wherein the second representation of the RF output signal is generated based on the RF output channel being enabled;
and
a processing circuit configured to determine a phase value based on the first measurement signal and the second measurement signal.

2 more elements

Dependencies are inferred from the claim text.

Phase calibration of a radar system with crosstalk cancellation

Life of this patent

Phase calibration of a radar system with crosstalk cancellation

Life of this patent

Abstract

Claims16