What makes this radar system different is its ability to detect the height of the target above the surface of the water.
He ignored the sounds only he could detect, of footsteps on the stairs above him.
He thought he detected another sound from high above them.
Their approach changed when they detected spin devices under automated construction above Mars poles.
The technology makes it possible for the smartphone to detect a finger up to 0.79 inches (20mm) above the screen.
Coming here, we were able to detect a neuron directly above the top of a glia that lay before it.
He detected a tinge of color above the collar of her shirt.
Straining his ears, Banks could detect a faint whining above the sound of the wind.
Most people do not detect flicker above 75 Hz.
Yet in that brief inspection he detected a space above the elevator.