Related Experiment Video
Updated: Aug 1, 2025
10:56
Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish
Published on: March 6, 2014
12.6K
Micro-Motion Extraction for Marine Targets by Multi-Pulse Delay Conjugate Multiplication and Layered Tracking.
Tong Mao1, Yi Zhang1, Kaiqiang Zhu1
1Beijing Key Laboratory of Millimeter Wave and Terahertz Techniques, School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China.
Sensors (Basel, Switzerland)
|April 28, 2023
Summary
This study introduces a new radar algorithm to track marine targets, even when they overlap. The multi-pulse delay conjugate multiplication and layered tracking (MDCM-LT) method enhances detection precision and reliability.
Area of Science:
- Radar signal processing
- Marine target detection
- Micro-motion analysis
Background:
- Ocean waves induce micro-motion in marine targets, aiding radar detection.
- Distinguishing and tracking overlapping extended targets in radar echoes is a significant challenge.
Purpose of the Study:
- To propose a novel algorithm for micro-motion trajectory tracking of marine targets.
- To address the challenge of distinguishing and tracking overlapping extended targets in radar echoes.
Main Methods:
- The multi-pulse delay conjugate multiplication (MDCM) method is used to extract conjugate phase for high-precision micro-motion extraction and overlapping target identification.
- A layered tracking (LT) algorithm is developed to track sparse scattering points from different extended targets.
Main Results:
- The proposed MDCM-LT algorithm demonstrated high precision in simulations.
- Root mean square errors for distance and velocity trajectories were below 0.277 m and 0.016 m/s, respectively.
Conclusions:
- The MDCM-LT algorithm shows potential for improving the precision and reliability of marine target detection using radar.
- This method effectively handles overlapping extended targets in radar echoes through micro-motion analysis.
