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Deviation elimination and acquisition method and device for carrier phase measurement value, and receiver

A carrier phase and deviation elimination technology, applied in the field of communication, to achieve the effect of improving accuracy

Active Publication Date: 2021-03-23
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing OFDM signal system model only considers certain factors according to the needs, such as the impact of timing deviation or frequency deviation on the received OFDM signal, and lacks a system model that fully considers the impact of various factors
At the same time, there is no processing method for both frequency deviation and timing deviation in the prior art

Method used

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  • Deviation elimination and acquisition method and device for carrier phase measurement value, and receiver
  • Deviation elimination and acquisition method and device for carrier phase measurement value, and receiver
  • Deviation elimination and acquisition method and device for carrier phase measurement value, and receiver

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Embodiment Construction

[0035] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0036] figure 1 It shows a schematic flowchart of a method for eliminating deviations of carrier phase measurement values ​​provided by this embodiment, including:

[0037] S101. Calculate the difference between the first single differential carrier phase measurement value and the second single differential carrier phase measurement value to obtain a double differential carrier phase measurement value with deviation eliminated.

[0038] Wherein, the first single differential carrier phase measurement value and the second single differential carrier phase measurement value are the difference between two carrier phase measurement values ​​carrying frequency deviation a...

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Abstract

An embodiment of the invention discloses a deviation elimination and acquisition method and device for a carrier phase measurement value and a receiver. The deviation elimination and acquisition method comprises the step of calculating a difference value between a first single-difference carrier phase measurement value and a second single-difference carrier phase measurement value, and acquiring adouble-difference carrier phase measurement value with deviation eliminated, wherein the first single-difference carrier phase measurement value and the second-single difference carrier phase measurement value are both difference values of two carrier phase measurement values carrying frequency deviation and timing deviation. According to the deviation elimination and acquisition method and the device of the invention, the frequency deviation and the timing deviation of the carrier phase measurement value are considered at the same time, the carrier phase measurement value carrying the frequency deviation and the timing deviation is subjected to twice difference processing to obtain the double-difference carrier phase measurement value without deviation, the influence of various deviations on the carrier phase measurement value can be effectively removed, and the precision of a carrier phase measurement value is improved, so that the positioning precision is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, device and receiver for eliminating and acquiring deviations of carrier phase measurement values. Background technique [0002] The positioning of OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) carrier phase requires a system model that considers the influence of phase offset caused by transmission delay. [0003] The existing OFDM signal system model does not consider the influence of the phase offset caused by the transmission delay, and is not suitable for positioning based on carrier phase. In addition, the positioning of the OFDM carrier phase requires a system model that can fully integrate the influence of various errors and interference factors on the OFDM carrier phase. However, the existing OFDM signal system model only considers certain factors, such as the impact of timing deviation or frequency deviatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L12/24G06F30/20
CPCH04L27/2655H04L41/145H04L27/26G06F30/20H04L27/20
Inventor 任斌达人李刚张振宇于大飞郑占旗孙韶辉
Owner DATANG MOBILE COMM EQUIP CO LTD