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Range and Velocity Estimation of Moving Targets Using Multiple Stepped-frequency Pulse Trains
Gang Li1, Huadong Meng2, Xiang-Gen Xia3
1Department of Electronic Engineering, Tsinghua University, Beijing 100084, China. gangli@tsinghua.edu.cn.
Sensors (Basel, Switzerland)
|November 24, 2016
Summary
This study introduces multiple stepped-frequency pulse trains for radar, overcoming range-Doppler coupling and phase wrapping issues. This enables accurate estimation of moving target range and velocity.
Area of Science:
- Radar signal processing
- Target detection and tracking
Background:
- Conventional stepped-frequency pulse radar faces challenges with range-Doppler coupling and phase wrapping.
- These limitations hinder accurate estimation of moving target parameters.
Purpose of the Study:
- To present a novel radar waveform for improved target parameter estimation.
- To introduce a new algorithm to address existing radar limitations.
Main Methods:
- Utilizing multiple stepped-frequency pulse trains as a new radar waveform.
- Applying the robust phase unwrapping theorem (RPUT) for data processing.
Main Results:
- Successfully resolved range-Doppler coupling and phase wrapping issues.
- Achieved robust and accurate estimation of moving target range and velocity.
Conclusions:
- The proposed multiple stepped-frequency pulse trains and RPUT offer a robust solution.
- This method enhances the accuracy of moving target detection in radar systems.
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