Frequency offset compensation method and device for Bluetooth signal, computer equipment and storage medium

Abstract

The invention relates to a frequency offset compensation method and device for a Bluetooth signal, computer equipment and a storage medium, and belongs to the technical field of wireless communication. The method comprises the following steps: performing coarse frequency offset compensation on an acquired Bluetooth signal to obtain a compensated signal; Obtaining phase information of the Bluetoothsignal, and determining a frequency offset estimation value according to the phase information, Wherein the phase information is obtained by performing phase demodulation on the compensated signal; Performing frequency offset compensation on the phase information through the frequency offset estimation value; And determining a Bluetooth output signal according to the phase information after frequency offset compensation. According to the technical scheme, the problem that the Bluetooth performance is reduced due to the fact that normal Bluetooth signals are damaged when the frequency offset is large is solved. The integrity of the Bluetooth signal can be effectively ensured, so that the determined Bluetooth output signal is high in accuracy, and the performance of the Bluetooth is ensured.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a frequency offset compensation method, device, computer equipment and storage medium for bluetooth signals. Background technique [0002] Bluetooth is a wireless short-range communication standard operating in the 2.4G ISM frequency band. It is mainly used for low-speed and short-distance data transmission and voice communication, and has the characteristics of low cost and low power consumption. Bluetooth signals may have problems such as frequency offset and phase offset during data transmission, so it is necessary to process the Bluetooth signal at the receiver to eliminate the influence of frequency offset and phase offset. [0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: In the traditional Bluetooth signal processing method, the frequency offset is often estimated...

AI Technical Summary

Problems solved by technology

However, this method is prone to the problem that the normal Bluetooth signal is destroyed when the frequency deviation is large, resulting in a decrease in Bluetooth performance.

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