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Observation noise integrity monitoring method based on software receiver

A software receiver, integrity monitoring technology, applied in measurement devices, radio wave measurement systems, satellite radio beacon positioning systems, etc., to achieve the effect of meeting continuity requirements and integrity risks

Inactive Publication Date: 2020-10-27
广州道源信息科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upgrade of the receiver brings some inconvenience to designers and users. How to adjust and optimize the receiver function only by updating the software logic without changing the hardware structure of the receiver has become a research hotspot in this field

Method used

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  • Observation noise integrity monitoring method based on software receiver
  • Observation noise integrity monitoring method based on software receiver
  • Observation noise integrity monitoring method based on software receiver

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with accompanying drawing

[0051] The present invention provides a kind of observation noise integrity monitoring method based on software receiver, 1. a kind of observation noise integrity monitoring method based on software receiver, it is characterized in that, comprises the following steps:

[0052] (1) Calculate the double-difference pseudorange and carrier phase observation value of the original observation data;

[0053] (2) Select multi-combination coefficients to solve the ambiguity of ultra-wide lanes;

[0054] (3) Calculate the integer ambiguity of the ultra-wide lane combination;

[0055] (4) Calculate test statistics;

[0056] (5) Find the detection threshold;

[0057] (6) When the detection statistics are within the detection threshold, calculate the actual missed detection rate and compare it with the preset missed detection rate. When the actual missed detection rate is greater than...

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Abstract

The invention belongs to the field of global navigation satellite system (GNSS) integrity monitoring, and particularly relates to an observation noise integrity monitoring method based on a software receiver, which is used for autonomously monitoring observation noise on the basis of no-reference benchmark constraint conditions. The method comprises the following steps of(1) calculating a double-difference pseudorange and a carrier phase observation value of original observation data,(2) selecting a multi-product combination coefficient to solve the super-wide lane ambiguity,(3) calculating the integer ambiguity of the super-wide lane combination,(4) calculating test statistics,and (5) solving a detection threshold. Under the condition of no reference benchmark constraint, the false alarmrate and the omission ratio are synchronously controlled by using the detection threshold, the availability of the data can be effectively and timely judged, multipath and observation noise abnormitywarning is carried out, and unavailable data is eliminated. And the continuity requirement and the integrity risk of observation noise detection of a software receiver are met.

Description

technical field [0001] The invention belongs to the field of global navigation satellite system (GNSS) integrity monitoring, and in particular relates to an observation noise integrity monitoring method based on a software receiver for autonomous monitoring of observation noise based on no reference reference constraints. Background technique [0002] In recent years, my country has vigorously developed the transportation industry, especially the railway industry. As my country has increased investment and construction of railways, railways are important national infrastructure, economic lifelines and important means of transportation. The substantial increase in railway transportation capacity has effectively solved the problems existing in railway transportation operations and promoted the development of the national economy. development and the construction of a harmonious society. Although the improvement of train speed has increased the overall transportation capacity o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/20G01S19/23G01S19/22
CPCG01S19/20G01S19/22G01S19/23
Inventor 赵美玲
Owner 广州道源信息科技有限公司
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