PHASED ARRAY CALIBRATION METHOD AND PHASED ARRAY CALIBRATION CIRCUIT

摘要

The present invention relates to the communications field, and provides a phased array calibration method and a phased array calibration circuit. The phased array calibration circuit includes a signal obtaining module, a selector, a phase difference module, and a main signal module. The selector is configured to switch on the signal obtaining module and the main signal module; the signal obtaining module is configured to obtain a first signal according to an initial signal after the selector switches on the signal obtaining module and the main signal module; the selector is further configured to switch on the phase difference module, the signal obtaining module, and the main signal module; and the signal obtaining module is further configured to obtain a second signal according to the initial signal after the selector switches on the phase difference module, the signal obtaining module, and the main signal obtaining module.

主权项

1. A phased array calibration circuit, comprising:
a signal obtaining module; a phase difference module; a main signal module; a selector configured to switch on the signal obtaining module, the main signal module and the phase difference module; and wherein the signal obtaining module is configured to:
obtain a first signal according to an initial signal after the selector switches on the signal obtaining module and the main signal module, andobtain a second signal according to the initial signal after the selector switches on the phase difference module, the signal obtaining module, and the main signal module, so as to obtain a phase error and an amplitude error of a phased array channel in the main signal module according to phase information and amplitude information of the first signal and phase information and amplitude information of the second signal.