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Marine radar calibration-oriented measured value and AIS truth value dot pair construction method

A construction method and measurement value technology, applied to radio wave measurement systems, instruments, etc., can solve problems such as the construction method of unseen measurement values ​​and AIS true value point pairs, and achieve the effect of reducing errors, reducing quantities, and reducing errors

Active Publication Date: 2015-12-02
NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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  • Application Information

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Problems solved by technology

At present, there is no research report on the construction method of the measured value and AIS true value point pair for marine radar calibration

Method used

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  • Marine radar calibration-oriented measured value and AIS truth value dot pair construction method
  • Marine radar calibration-oriented measured value and AIS truth value dot pair construction method
  • Marine radar calibration-oriented measured value and AIS truth value dot pair construction method

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings of the specification. With reference to the drawings, the specific implementation of the present invention is divided into the following steps:

[0017] (1) Use unified timing equipment to time marine radar and AIS equipment to ensure that the equipment time is consistent;

[0018] (2) Data 1 is the target track data output by the marine radar, and data 2 is the AIS message output by the AIS receiving device, and preliminary screening of AIS messages has been completed. Only messages with a message identification code of 1 are received and only forwarding instructions are received. Messages with a symbol of 0, only receive messages with ship position accuracy of 1, only receive messages for targets with electronic positioning device type 1, and only receive messages for targets with electronic positioning device type 1, forming AIS target set A;

[0019] (3) Process 3...

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Abstract

The invention discloses a marine radar calibration-oriented measured value and AIS truth value dot pair construction method. The technology relates to the field of marine radar error calibration, and available targets are screened for pairing, thereby building a target dot pair, and providing data support for subsequent error analysis. The method is realized mainly through the following technical scheme: first uniform GPS time service equipment is utilized to provide time service to marine radar equipment and AIS receiving equipment; then validity judgment is performed on an AIS message, preliminary screening is completed, space coordinate transformation is performed on AIS positioning data according to a radar antenna position, a screening area is set and radar targets are screened; then the screened radar targets are fed back to the AIS and further screening is performed, and the screening area is diminished according to a screening result till target pairing is completed; and finally, according to time of radar track data and a paired AIS target track of adjacent moments before and after the time of the radar track data, interpolation is performed on the AIS track, and an interpolation result and the radar track form a measured value and truth value dot pair.

Description

1. Technical Field [0001] The invention relates to the research direction of the construction of measured value and AIS true value point pairs in the field of marine radar error calibration. It uses real-time data received by shore station AIS equipment as the target true value to carry out data preprocessing for marine radar error calibration In the stage, it provides data support for subsequent marine radar error analysis, which is suitable for the error calibration of sea surface target detection radars such as navigation, search, alert, and target indication under shore-based and ship-based platform conditions. 2. Background technology [0002] AIS, or Automatic Identification System, is a kind of communication response equipment used to assist the ship traffic management system. It integrates GPS positioning information, VHF communication machine, display and other equipment in one, as a kind of ship automatic reporting communication Facilities that can automatically broadca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 关键孙璐王国庆姜佰辰孙艳丽周伟刘宁波
Owner NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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