Phase determination method and device, phase calibration method, medium and antenna equipment

Abstract

The invention provides a target initial phase determination method. The method comprises the following steps: acquiring voltage amplitudes of system direct current offset signals of a phased array system corresponding to N target channels to be calibrated; obtaining voltage amplitudes of overall direct-current offset signals under different initial phases, wherein for any initial phase, the overall direct-current offset signals are overall direct-current offset signals of initial frequency mixing signals output by a frequency mixer at the downstream of a power combiner of the phased array system after test signals are provided for N target channels; and calculating voltage amplitudes of the frequency mixing direct current offset signals of the N target channels under different initial phase conditions, and taking initial phases of the N target channels as target initial phases of the N target channels when the voltage amplitudes of the frequency mixing direct current offset parameter signals reach the maximum value. The invention also provides a phase calibration method, an initial phase determination device and an antenna system. According to the phase calibration method provided by the invention, extra calibration deviation is not introduced, and the calibration precision is improved.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, to a target initial phase determination method for a phased array system, a target initial phase determination device for implementing the target initial phase determination method, a computer-readable storage medium, and an antenna device. Background technique [0002] Phased array technology has beamforming and beam scanning capabilities, which can significantly improve the signal-to-noise ratio and sensitivity of wireless communication systems. In addition, the phased array technology can also reduce the power and noise requirements for a single channel in the phased array system, so that the phased array technology has been widely used. [0003] figure 1 Shown in is the frame diagram of a typical phased array system, such as figure 1 As shown in , the power combining or distribution network allocates power to each channel, and the beam pointing can be c...

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Problems solved by technology

[0004] However, due to the large number of channels in the phased array system, it is difficult to ensure that the initial phases of all channels are the same due to manufacturing deviations and inconsistencies in the surrounding environment of different channels, which in turn reduces the beamforming performance.

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