Interferometric synthetic aperture radar (IFSAR) extends the two-dimensional imaging capability of traditional synthetic aperture radar to three-dimensions by using an aperture in the elevation plane to estimate the 3-D structure of the target. The operation of this additional aperture can be viewed from a null-steering point of view, rather than the traditional phase determination point of vie...

In this paper we investigate the use of interferometric synthetic aperture radar (IFSAR) processing for the 3D reconstruction of radar targets. A major source of reconstruction error is induced by multiple scattering responses in a resolution cell, giving rise to height errors. We present a model for multiple scattering centers and analyze the errors that result using traditional IFSAR height e...

This paper explores three-dimensional (3D) interferometric synthetic aperture radar (IFSAR) image reconstruction when multiple scattering centers and noise are present in a radar resolution cell. We introduce an IFSAR scattering model that accounts for both multiple scattering centers and noise. The problem of 3D image reconstruction is then posed as a multiple hypothesis detection and estimati...

A Digital Elevation Model (DEM) is fundamental information for the geo-spatial data infrastructure framework. Many applications require three-dimensional (3-D) geo-spatial data with high spatial resolution and accuracy. One leading technology of the nationwide 3-D mapping is airborne interferometric SAR mapping system due to its all-weather acquisition capability. Compared to other airborne map...

This thesis investigates the use of Interferometric Synthetic Aperture Radar (IFSAR) processing for three-dimensional (3D) reconstruction of radar images in the presence of multiple scattering centers in a resolution cell. Systems for processing IFSAR data in each resolution cell separately are proposed. The objective of these systems is to reduce the average height error of a reconstructed ima...

New requirements have recently emerged for high-resolution digital terrainelevation data. Such data are required for critical applications such as intelligent preparation of the battlefield and precision engagement. The recent development of high-resolution interferometric synthetic aperture radar (IFSAR) has made meeting these requirements a possibility. Because studies have shown that a space...

Vegetation canopy height is one of the fundamental structural parameters for estimating forest biomass and evaluating forest carbon balance. Remote sensing technologies like interferometric synthetic aperture radar (abbreviated as IFSAR or IFSAR) may provide a means to extract vegetation canopy heights remotely. A comparison of canopy height estimates derived from IFSAR scattering phase center ...

Traditional photogrammetric mapping technologies are being challenged by the increasing demands for faster and cheaper digital mapping products. High-resolution airborne Interferometric Synthetic Aperture Radar (IFSAR) systems are starting to penetrate the traditional photogrammetric market due to their operational and economic advantages. Many geo-spatial data, such as Digital Elevation Models...

The objective of this project is to develop methods to incrementally model and detect changes in the shape or surface material properties of terrain. The model will be derived from range data (such as interferometric synthetic aperture radar (IFSAR) elevation data) and electrooptical (EO) and infrared (IR) imagery. The imagery can be either still images or video data, such as that obtained from...

This paper presents the integration of 50 cm 4 band (R, G, B, and infrared) imagery with 80 cm LIDAR, and 2.5 meter posting IFSAR surface elevation models for urban scene analysis. The goal is to characterize urban scenes in terms of buildings, trees, roads, other geometrical structures, open areas, and various natural land covers. This type of information is useful for applications such as urb...