A 3D microwave imaging method for earth observation

Microwave imaging techniques which can provide all-weather, day-and-night imaging capability have important applications to many fields. It is an active area to explore new microwave imaging ideas, systems and techniques. In our previous work, we proposed a new microwave imaging method for earth observation. In this method, the transmitter and receiver are located in different platforms, and only a monochromatic microwave is required to illuminate the earth surface. Numerical simulation results show that this method can produce microwave images with high spatial and radiation resolutions. In this paper, as an extension of our previous work, we study some important properties of this method, which lead to a very promising potential application in 3-dimensional (3D) imaging for earth observation.