A null-steering viewpoint of interferometric SAR
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 view. Knowing that IFSAR can be viewed from the null-steering perspective allows one to take advantage of the mathematical foundation developed for null-steering arrays. In addition, in some problems of interest in IFSAR the null-steering perspective provides better intuition and suggests alternative solutions. One example is the problem of estimating building height where layover is present.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 755624
- Report Number(s):
- SAND99-3220C; TRN: AH200021%%59
- Resource Relation:
- Conference: IEEE Geoscience and Remote Sensing Symposium 2000, Honolulu, HI (US), 07/24/2000--07/28/2000; Other Information: PBD: 2 May 2000
- Country of Publication:
- United States
- Language:
- English
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