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GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
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Spatial positioning method based on range-only measurement of multi-station radar.

Jianghuai Pan1,2

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This study introduces a novel multi-station radar spatial positioning method using ranging. It achieves high accuracy by intersecting detection distances, simplifying calculations and improving shipborne radar performance.

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Area of Science:

  • Naval Technology
  • Radar Systems Engineering
  • Geospatial Positioning

Background:

  • Shipborne radar systems face challenges in achieving high ranging accuracy.
  • Existing methods may involve complex coordinate conversions and iterative calculations.
  • Accurate spatial positioning is crucial for naval operations and target tracking.

Purpose of the Study:

  • To propose a multi-station radar spatial positioning method based on ranging.
  • To enhance the accuracy and efficiency of shipborne radar positioning.
  • To address limitations of existing methods, particularly coordinate conversion and complex calculations.

Main Methods:

  • Utilizes the Earth Centered Earth Fixed (ECEF) coordinate system.
  • Employs the intersection of detection ranges from multiple radar stations to the target.
  • Directly calculates the target's spatial (geodetic) coordinates using radar station coordinates and target detection ranges.

Main Results:

  • Achieves high positioning accuracy for targets.
  • Offers a long operating distance for the positioning system.
  • Effectively solves the coordinate conversion problem caused by Earth's curvature.
  • Avoids higher-order equations, multi-value solutions, and iterative initial value calculations.

Conclusions:

  • The proposed method provides a robust solution for multi-radar range measurement intersection positioning.
  • It offers a simpler and more accurate approach compared to traditional methods.
  • The system is well-suited for enhancing the capabilities of shipborne radar platforms.