Research Article
Development of a Near-Field Bistatic Synthetic Aperture Radar for Complex Target Reconstruction
Table 3
Description for point-target SWISAR experiments.
| | Simulated point target at | Simulated spherical targets | Experimental spherical targets |
| | Mono Static (MS) | Figure 17(a) | Figure 18(a) | Figure 19(a) | = 39° : −2° : 17°
= 33° : −2° : 11°
= 36° : −2° : 14°
Computation time = 34 mins | Focussed to a single point. Effects of limited aperture in clearly visible. | Clear correspondence to upper (visible) surface of spheres
Some residual energy in annuli | Clear correspondence to upper (visible) surface of spheres |
| | Quasi Mono Static (QMS) | Figure 17(b) | Figure 18(b) | Figure 19(b) | = 39° : −2° : 17°
= 33° : −2° : 11°
= 36° : −2° : 14°
Computation time = 34 mins | Poorly focussed | Smeared target response
Greater residual energy in annuli. | Peak energy density away from target surface |
| | Bi Static (BS) | Figure 17(c) | Figure 18(c) | Figure 19(c) | = 39° (fixed)
= 33° : −4° : −11°
= 36° : −2° : 14°
Computation time = 7.5 hrs | Result “as good as” that of MS | Result “as good as” that of MS | Result “as good as” that of MS |
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