One of the most important applications of synthetic aperture radar interferometry (SARIF) is making a geometrical plot of observed points on the ground surface. For that purpose, we derive the two points' distances using a radar principle. Mathematically, this problem is a two-unknown-variables problem. To solve, it we need only two equations. Due to limitations of the measured distances by radar, we require one more equation. The availability of the data is carefully investigated. Then, we obtain a very clear expression for the parallel and perpendicular components of the distance. The perpendicular component is expressed by the difference of the measured phase differences with an extremely large amplifier. We discuss the conversion of the measured phase differences, the plot of which is an interferogram, to distance. We present a numerical example that verifies the likelihood of obtaining the difference of the phase differences. We also show the phase differences and calculate the perpendicular component for the Advanced Land Observing Satellite-Phased Array-Type L-Band Synthetic Aperture Radar (ALOSPALSAR). The plot of ground points is very noisy; therefore, we must improve our calculation by reconsidering the coregistration calculation.

中文翻译：

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合成孔径雷达干涉测量：利用雷达原理

合成孔径雷达干涉测量 (SARIF) 最重要的应用之一是绘制地表观测点的几何图。为此，我们使用雷达原理推导出两点的距离。在数学上，这个问题是一个两未知变量的问题。要解决它，我们只需要两个方程。由于雷达测量距离的限制，我们还需要一个方程。仔细调查了数据的可用性。然后，我们获得了距离的平行和垂直分量的非常清晰的表达式。垂直分量由测量的相位差与极大放大器的差值表示。我们讨论了测量的相位差到距离的转换，其图是一个干涉图。我们提供了一个数值例子来验证获得相位差差异的可能性。我们还展示了先进陆地观测卫星相控阵型 L 波段合成孔径雷达 (ALOSPALSAR) 的相位差并计算了垂直分量。地面点的情节非常嘈杂；因此，我们必须通过重新考虑配准计算来改进我们的计算。