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ZC-like sequence pilot signal generation and time-frequency estimation method

A technology of sequence signal and time-frequency estimation, applied in the field of communication, can solve the problem of lack of ZC-like sequence signal generation method, etc.

Inactive Publication Date: 2022-04-12
HOPE MICROELECTRONICS CO LTD +1
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Problems solved by technology

[0004] The embodiment of the present application provides a ZC-like sequence pilot signal generation and time-frequency estimation method to at least solve the technical problem of the lack of a ZC-like sequence signal generation method in the related art, and also solve the generation of the pilot signal and how to perform time-frequency estimation. Estimation and other issues

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[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0020] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such...

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Abstract

The invention discloses a ZC-like sequence pilot signal generation and time-frequency estimation method. ZC-like sequence signals generated based on an mFSK linear micro frequency hopping technology are provided, a pair of ZC-like sequence signals is further used for forming real ZC-like sequence pilot signals capable of being used for time frequency estimation, and a frequency domain correlation method is adopted for the received real ZC-like sequence pilot signals during time frequency estimation to obtain a pair of frequency domain peak positions; according to the ZC-like sequence signal designed based on the micro-frequency-hopping spread spectrum technology, the frequency offset and the time delay of the signal can be estimated, and the ZC-like sequence signal has the advantages that the frequency offset and the time delay are not correlated with each other; the method can be used in the fields of micro-frequency hopping multiple access communication, satellite communication and positioning, radar ranging and speed measurement and the like.

Description

technical field [0001] The present application relates to the communication field, in particular, to a generation and frequency estimation method of a ZC-like sequence pilot signal. Background technique [0002] Related technology (patent CN112564843A) proposes a brand-new micro-frequency hopping spread spectrum technology. Micro-frequency hopping technology can design uncorrelated sequences in two dimensions of time and frequency to realize multi-access communication based on mutual uncorrelation. Further, it can use The ZC-like sequence signal is used to realize the pilot signal of micro-frequency hopping multiple access communication, but specifically, there is no ready-made solution for how to generate the ZC-like sequence signal, how to design the pilot signal, and how to perform time-frequency estimation. [0003] For the above problems, no effective solution has been proposed yet. Contents of the invention [0004] The embodiment of the present application provides...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/04H04L27/00H04B1/7136H04B1/7156H04J3/06H04J13/14H04J13/00
Inventor 杜凡平
Owner HOPE MICROELECTRONICS CO LTD
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