Abstract: Spatial processing of signals is taking into account the mutual influence of the antenna array elements. The change in the antenna array matrix of the mutual impedances leads to a mismatch ...

In this paper, we focus on the mid-infrared (8-13 mu m) nulling mode and present its theory of operation, data reduction, and on-sky performance as of the end of the commissioning phase in 2015 March.

Brig. Gen. Matthew Braman, director of Army Aviation, said a temporary control tower antenna placed in the wrong location caused military air traffic controllers to lose contact with the Black ...

A new device uses quantum optics to filter out starlight in real time — bringing scientists closer to directly observing Earth-like worlds. A team of scientists is developing a "quantum ...

Ad-supported tiers are proving to be popular with streaming customers. New data from subscription analyst firm Antenna shows that 46 percent of Discovery Plus, Disney Plus, Hulu, HBO Max ...

This is achieved through an algorithm employing the Schelkunoff nulling theory. The genetic algorithm is then used to optimize the array excitations. The proposed technique reduces the number of ...