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Fig. 1. Amplitude modulation introduced by the antenna array ele- ment when steering the TSX antenna within +2.2°.

Figure 1 Amplitude modulation introduced by the antenna array ele- ment when steering the TSX antenna within +2.2°.

Related Figures (7)

“ Experimental. Table 1. Comparison of the Spotlight Modes. Values given for single polarization.
“ Experimental. Table 1. Comparison of the Spotlight Modes. Values given for single polarization.
Fig. 2. Error of the hyperbolic approximation using an effective ve- locity. The duration corresponds to a ST data take.
Fig. 2. Error of the hyperbolic approximation using an effective ve- locity. The duration corresponds to a ST data take.
Fig. 3. The effects of the stop-and-go approximation in the experi- mental ST mode. (left) Residual phase of a CR in the 2D frequency domain for a ST acquisition. (right) Corresponding contour plot.
Fig. 3. The effects of the stop-and-go approximation in the experi- mental ST mode. (left) Residual phase of a CR in the 2D frequency domain for a ST acquisition. (right) Corresponding contour plot.
Fig. 4. Profiles along azimuth-frequency for three different range frequencies after considering the stop-and-go effect. The residual quadratic error that can be observed is due to tropospheric effects.
Fig. 4. Profiles along azimuth-frequency for three different range frequencies after considering the stop-and-go effect. The residual quadratic error that can be observed is due to tropospheric effects.
Fig. 5. Proposed update of the ECS algorithm (new steps in gray) to process data acquired in the experimental ST mode.
Fig. 5. Proposed update of the ECS algorithm (new steps in gray) to process data acquired in the experimental ST mode.
Fig. 7. Geocoded zooms over Oberpfaffenhofen, Germany, for the scene shown in [1] for the (left) operational HS mode and the (right) experimental ST mode. The resolution of the multilooked images in both cases is approximately 1 m. Zoom size: 1000 mx500 m.
Fig. 7. Geocoded zooms over Oberpfaffenhofen, Germany, for the scene shown in [1] for the (left) operational HS mode and the (right) experimental ST mode. The resolution of the multilooked images in both cases is approximately 1 m. Zoom size: 1000 mx500 m.
Fig. 6. Impulse response analysis of a corner reflector in the TSX scene after correcting all the anomalies. (left) Residual phase in the 2D frequency domain and (right) contour plot. The plots at the bot- tom row correspond to a CR located at the corner of the scene.
Fig. 6. Impulse response analysis of a corner reflector in the TSX scene after correcting all the anomalies. (left) Residual phase in the 2D frequency domain and (right) contour plot. The plots at the bot- tom row correspond to a CR located at the corner of the scene.
Related topics:
Approximation TheoryAntenna arraysFrequency-domain analysisSynthetic Aperture RadarRadar Imagingimage resolution
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