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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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Published on: February 12, 2014

Real-time implementation of frequency-modulated continuous-wave synthetic aperture radar imaging using field

Yinghui Quan¹, Yachao Li¹, Guibin Hu¹

¹National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, People's Republic of China.

The Review of Scientific Instruments

|July 3, 2015

Summary

A new miniature radar system on unmanned aerial vehicles enables real-time, high-resolution synthetic aperture radar imaging. This advanced hardware significantly improves integration, power efficiency, and performance for aerial surveillance applications.

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Area of Science:

Electrical Engineering
Aerospace Engineering
Signal Processing

Background:

Synthetic aperture radar (SAR) imaging is crucial for aerial surveillance and remote sensing.
Miniaturization and real-time processing are key challenges in developing airborne SAR systems.

Purpose of the Study:

To present a novel miniature linear frequency-modulated continuous-wave (LFMCW) radar for unmanned aerial vehicles (UAVs).
To achieve high-resolution SAR imaging in real-time using a compact hardware solution.

Main Methods:

The system utilizes a Kintex-7 field-programmable gate array (FPGA) for comprehensive signal processing.
Sophisticated radar imaging algorithms are implemented on the FPGA for real-time performance.

Main Results:

The proposed hardware architecture demonstrates significant improvements in integration, power consumption, and volume.
Remarkable enhancements in computing performance are achieved compared to previous designs.

Conclusions:

The developed miniature LFMCW radar system is suitable for real-time, high-resolution SAR imaging on UAVs.
Flight campaigns validated the design's effectiveness and performance in practical scenarios.