研究目的
Investigating the imaging and interferometric performances of a MIMO radar on board of an airship as an alternative to airborne and spaceborne SAR remote sensing techniques.
研究成果
The paper concludes that a MIMO radar on an airship can provide continuous imaging over an area of interest, with performance impacted by airship stability. Rotation causes angle shifts and increases sidelobe levels, while translational movements induce errors in interferometric displacement estimation that are linear and compensable.
研究不足
The study is limited by the assumption of airship stability and the specific configurations of the MIMO radar arrays. The far range condition is not satisfied for the L band at the considered observation geometry.
1：Experimental Design and Method Selection:
The study involves designing four MIMO radar arrays operating in L, C, X, and Ku frequency bands with a bandwidth of 250 MHz. The spatial resolution is set to 0.6 m in range and 0.3 degree in azimuth. The impact of airship stability on radar performance is analyzed.
2：6 m in range and 3 degree in azimuth. The impact of airship stability on radar performance is analyzed.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: A synthetic raw data set is generated for a target on a flat area at different azimuth angles.
3：List of Experimental Equipment and Materials:
MIMO Stepped-Frequency Continuous-Wave (SFCW) radars with 16 TX and 16 RX antennas, emitting 7501 frequencies within a 250 MHz bandwidth.
4：Experimental Procedures and Operational Workflow:
The study simulates a scene with a point-like target at 1800 meters with varying azimuth angles. Raw data are generated and focused images are reconstructed using the back-projection algorithm.
5：Data Analysis Methods:
The performance is analyzed in terms of airship stability, including rotation and translational movements, and their effects on imaging and interferometry.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
