1.1 This practice provides information and techniques for evaluating performance qualities of a correctable film ribbon. It can be used to evaluate typewriter ribbons for general office use.

1.2 The values stated in either SI or inch-pound units are to be regarded as the standard. The val...

There are several factors affecting the quality of a CR image including the spatial resolution of the IP system, geometrical unsharpness, scatter and contrast sensitivity (signal-to-noise ratio), as well as software. There are several additional factors (for example, scanning parameters), which a...

This paper gives an efficient approach to reconstruct moving multiple objects (multi-object). Each object has independently rigid motion which includes translation and rotation. The traditional FBP algorithm can resolve the one-object motion problem rather well. However, it suffers from perceptible ...

Nyquist folding receiver (NYFR) is a typical wideband analog-to-information architecture. Focusing on the non-cooperative receiving, the pulse radar signal intercepted by the NYFR in time domain is analyzed. The NYFR outputs under different input conditions are investigated based on the extended Fou...

The inverse synthetic aperture radar (ISAR) imaging can be converted into a sparse reconstruction problem and solved by the li-norm minimization algorithm. The basis matrix in sparse ISAR imaging is usually characterized by the unknown rotation rate of a moving target, thus the rotation rate and the...