Imaging with a Homogeneous Millimeter Array

Multi Field imaging with the OVRO millimeter array

Leonardo Testi1 and Anneila I. Sargent California Institute of Te hnology, MS 105-24, Pasadena, CA 91125 Abstra t. We review some of the basi guidelines used to plan, exe ute and analyse multield observations at the Owens Valley Radio Observatory millimeter wave array. As a working example we dis uss our observations of the inner 50.5 50.5 of the Serpens loud ore. The results of our observation...

Millimeter-VLBI with a Large Millimeter-Array: Future Possibilities

We discuss possibilities and improvements which could be obtained, if a phased array with a large number (N= 50 − 100) of sub-millimeter antennas – like the planned large southern array (LSA) – is used for radio-interferometry with very long baselines (VLBI) at millimeter wavelengths. We find that the addition of such an instrument will push the detection limit and the imaging capabilities of a...

Focal Plane Array-based Millimeter Wave Imaging Radiometer

A Fully Integrated CMOS Pulse Transmitter with On-Chip Antenna Array for Millimeter-Wave Imaging

This dissertation focuses on the implementation of integrating pulse transmitter with wide-band antenna array into a chip by CMOS process for beam-forming in millimeter-wave (mm-wave) active imaging applications. Integrated antenna arrays in this research electrically control and steer radiated-pulse beams towards objects to be imaged. Among imaging approaches, active imaging method provides mo...

Array imaging of localized objects in homogeneous and heterogeneous media

Abstract. We present a comprehensive study of the resolution and stability properties of sparse promoting optimization theories applied to narrow band array imaging of localized scatterers. We consider homogeneous and heterogeneous media, and multiple and single scattering situations. When the media is homogeneous with strong multiple scattering between scatterers, we give a non-iterative formu...