Processing method of towrope exploration navigational positioning data

A technology for positioning data and processing methods, which is applied in seismic signal processing, satellite radio beacon positioning systems, instruments, etc., and can solve problems such as the absence of processing technology and processing methods.
CN103197346AActive Publication Date: 2013-07-10CHINA NAT OFFSHORE OIL CORP +2
2 Cites 15 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2013-07-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a processing method of towrope exploration navigational positioning data. The method includes the steps of reading original positioning data from a P2 / 94 format data file collected by an onboard positioning system, wherein the original positioning data comprise differential global positioning system (DGPS) data, RGPS data, acoustic data, cable compass data and onboard gyrocompass data, carrying out preprocessing which comprises gross error detecting, filtering and data standardization processing on the read original positioning data, using a node calculating method to confirm coordinates of positioning nodes in the preprocessed original positioning data, converting accurate positions of the positioning nodes into navigation data of a P1 / 90 format, and storing the navigation data. The method can process the original navigation data of the P2 / 94 format into the navigation data of the P1 / 90 format fast and efficiently.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of offshore petroleum seismic exploration, and more particularly, relates to a processing method for navigation and positioning data of offshore streamer exploration. Background technique

[0002] In marine seismic exploration, towline seismic exploration is the main exploration method. The seismic exploration ship tows one or more cables. With the gun array excited, the towed cable collects seismic wave reflection data, and the shipboard positioning equipment collects navigation and positioning data. Offshore seismic exploration is a combined cooperative operation mode, mainly composed of integrated navigation system, seismic data acquisition system, towline positioning and control system, seismic source system, etc. The integrated navigation system is the control and command center of offshore seismic exploration operations, and the control ship The collaborative work of various systems is carried out, and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More