Spaced-Antenna Interferometry to Detect and Locate Subvolume Inhomogeneities of Reflectivity: An Analogy with Monopulse Radar | Zendy

Guifu Zhang | Zendy; Richard J. Doviak | Zendy

Open Access

Spaced-Antenna Interferometry to Detect and Locate Subvolume Inhomogeneities of Reflectivity: An Analogy with Monopulse Radar

Author(s) -

Guifu Zhang,

Richard J. Doviak

Publication year - 2008

Publication title -

journal of atmospheric and oceanic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.774

H-Index - 124

eISSN - 1520-0426

pISSN - 0739-0572

DOI - 10.1175/2008jtecha1055.1

Subject(s) - monopulse radar , phased array , radar , interferometry , antenna (radio) , physics , remote sensing , optics , radar imaging , computer science , correlation function (quantum field theory) , bistatic radar , antenna array , geology , radar engineering details , spectral density , telecommunications

The theory of spaced-antenna interferometry (SAI) is formulated to detect and locate deterministic objects and reflectivity inhomogeneities embedded within the phased-array weather radar’s resolution volume V6 and to improve weather radar performance. An analogy is made between monopulse tracking and SAI. The cross-correlation function and its power spectrum are derived based on wave scattering by a large deterministic object and clusters of randomly distributed precipitation particles. It is shown that nonuniform beam filling leads to an effective narrower beam and an increase in cross-correlation coefficient at zero lag. Hence, an individual object or a subvolume inhomogeneity can be detected and located by SAI. This capability further enhances the potential applications of phased-array weather radar used as a multimission system.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research