Frame synchronization method and device of IEEE802.15.4g MR-OFDM in large frequency offset environment

An ieee802.15.4gmr-ofdm, frame synchronization technology, applied in multi-frequency code systems, complex mathematical operations, modulated carrier systems, etc., can solve the problem of unsatisfactory frame synchronization processing, achieve excellent synchronization performance and increase complexity Effect

Active Publication Date: 2021-08-13
BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY +3
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But it is not ideal for frame synchronizatio

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  • Frame synchronization method and device of IEEE802.15.4g MR-OFDM in large frequency offset environment
  • Frame synchronization method and device of IEEE802.15.4g MR-OFDM in large frequency offset environment
  • Frame synchronization method and device of IEEE802.15.4g MR-OFDM in large frequency offset environment

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[0032] It should be noted that the features and embodiments in the present invention can be combined with each other in the case of an unable conflict.

[0033] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be understood that the specific embodiments described herein are intended to illustrate and explain the present invention and is not intended to limit the invention.

[0034] figure 1 It is a step diagram of the frame synchronization method of IEEE 802.15.4G MR-OFDM in the embodiment of the present invention, such as figure 1Indicated. An IEEE802.15.4G MR-OFDM frame synchronization method in a large-frequency offset environment, the frame synchronization method includes:

[0035] S01, get the IEEE802.15.4G MR-OFDM signal;

[0036] The IEEE802.15.4G MR-OFDM signal acquired here can be received from the antenna system, or may be preprocessed by other devices or elements, and may also come from previously stored signal waveforms. The above acquisition method is for exa

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Abstract

The invention relates to the technical field of frame synchronization. The embodiment of the invention provides a frame synchronization method and device for IEEE802.15.4g MR-OFDM in a large frequency offset environment. The method comprises the following steps: obtaining an IEEE802.15.4g MR-OFDM signal; according to the frequency offset range of the IEEE802.15.4g MR-OFDM signal and the subcarrier interval in the preamble sequence, mapping the possible offset position of each single-tone signal in the preamble sequence to a power window, wherein the power window comprises a plurality of subcarrier positions; superposing the power values of the power windows corresponding to all the single-tone signals in the leader sequence; determining a subcarrier position according to the superposed power value; and performing synchronization position correction on the determined subcarrier position in the range of the subcarrier interval to obtain a frame synchronization position. According to the implementation mode provided by the invention, the synchronization efficiency of the IEEE802.15.4g MR-OFDM signal in a large frequency offset environment is improved.

Description

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Claims

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Application Information

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Owner BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY
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