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Timing deviation compensation method and device and electronic equipment

A technology of timing deviation and compensation method, which is applied in the field of signal processing and can solve the problems of increased hardware cost and high hardware cost

Active Publication Date: 2020-09-29
ASR MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This estimation method requires a high-precision crystal oscillator, resulting in increased hardware cost
[0004] It can be seen that the existing timing deviation compensation method has the technical problem of high hardware cost

Method used

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  • Timing deviation compensation method and device and electronic equipment
  • Timing deviation compensation method and device and electronic equipment
  • Timing deviation compensation method and device and electronic equipment

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Embodiment Construction

[0054] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0055]Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, al...

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Abstract

The embodiment of the invention provides a timing deviation compensation method and device and electronic equipment, which are applied to a radio frequency signal timing deviation compensation scene in a Bluetooth system enhancement rate mode, and belongs to the technical field of signal processing. The method comprises the steps that a to-be-processed signal corresponding to a current compensation process is acquired, and each compensation process corresponds to a target timing adjustment position and target timing deviation estimation; the to-be-processed signal is intercepted according to the target timing adjustment position to obtain a target adjustment signal; and timing deviation compensation is performed on the target signal according to the target timing deviation estimation to obtain a target compensation signal. And the compensated signal timing deviation is reduced, so that the subsequent timing deviation estimation precision is improved, the estimation precision of the timing deviation is further improved by using a filter subsequently, and finally, the timing deviation and the timing adjustment position are sent to a compensator to form a closed-loop structure. And the timing deviation is accurately tracked, so that the demodulation requirements in different scenes are met.

Description

technical field [0001] The present disclosure relates to the technical field of signal processing, and in particular to a timing deviation compensation method, device and electronic equipment. Background technique [0002] The enhanced data rate mode (EDR for short) of the Bluetooth system uses a differential 8psk modulation method to transmit data. This modulation method has a small peak-to-average power ratio and can reduce the performance requirements for the linear range of the radio frequency power amplifier. However, due to the long transmission duration of the EDR mode, this mode is very sensitive to the timing deviation of the system. The timing deviation estimation and compensation technology must be used to make the timing deviation within the tolerable range of the receiver, so as to ensure the correct transmission of data. [0003] In the existing Bluetooth system, in order to demodulate the 8psk signal, it is necessary to use the two synchronization sequences of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/80H04W56/00G06F17/16
CPCG06F17/16H04W56/005H04W4/80
Inventor 胡天琨唐群元朱仕轶
Owner ASR MICROELECTRONICS CO LTD