Abstract:
Moving target detection in through-the-wall scenario can be achieved by utilizing uncrewed aerial vehicle (UAV) radar. However, considering indoor human target detection,...Show MoreMetadata
Abstract:
Moving target detection in through-the-wall scenario can be achieved by utilizing uncrewed aerial vehicle (UAV) radar. However, considering indoor human target detection, the distance between the radar and the moving target is relatively short, and the ratio of target's velocity to the UAV's velocity varies greatly, which makes the range migration and Doppler phase much more complex and poses huge challenges for coherent integration. To address this issue, this letter proposes a moving target coherent integration method based on time reverse conjugate multiply and keystone transform (TRCM-KT) for UAV-mounted through-the-wall radar. In the proposed method, the reference signal is constructed by azimuthal time reverse and conjugation. Then, by multiplying the echo signal and the reference signal, the second-order range migration and doppler phase terms are eliminated. Next, keystone transform is employed to correct the remained first-order range migration. Finally, the fully coherent integration results can be obtained by performing Fourier transform along the azimuth direction. The effectiveness of the proposed method is verified by both simulation and experiment results.
Published in: IEEE Signal Processing Letters ( Volume: 32)
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- IEEE Keywords
- Index Terms
- Moving Target ,
- Coherent Method ,
- Coherent Integration ,
- Coherent Integration Method ,
- Unmanned Aerial Vehicles ,
- Reference Signal ,
- Human Targets ,
- Azimuth Direction ,
- Target Ratio ,
- Velocity Ratio ,
- Target Velocity ,
- Phase Term ,
- Migration Phase ,
- Range Migration ,
- Numerical Simulations ,
- Off-diagonal ,
- Target Signal ,
- Numerical Simulation Results ,
- Main Terms ,
- Pulse Repetition Frequency ,
- Doppler Spread ,
- Second-order Coefficients ,
- Sum Of Elements ,
- Radar Platform ,
- 3D Diagram
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Moving Target ,
- Coherent Method ,
- Coherent Integration ,
- Coherent Integration Method ,
- Unmanned Aerial Vehicles ,
- Reference Signal ,
- Human Targets ,
- Azimuth Direction ,
- Target Ratio ,
- Velocity Ratio ,
- Target Velocity ,
- Phase Term ,
- Migration Phase ,
- Range Migration ,
- Numerical Simulations ,
- Off-diagonal ,
- Target Signal ,
- Numerical Simulation Results ,
- Main Terms ,
- Pulse Repetition Frequency ,
- Doppler Spread ,
- Second-order Coefficients ,
- Sum Of Elements ,
- Radar Platform ,
- 3D Diagram
- Author Keywords