Showing papers on "High dynamic range published in 1977"
TL;DR: It is found that the rewriting of the Fourier transform to scale data only when arithmetic overflow occurs, rather than before each pass, results in a twofold increase in the available dynamic range.
12 citations
Patent•
02 May 1977TL;DR: In this article, the pre-limited IF signal from an FM receiver is coupled to a pair of linear amplifiers in a cascade configuration, and a summing circuit sums the piecewise linear amplified signals in predetermined proportion to produce a DC signal which is linearly related to the receiver's quieting level.
Abstract: The pre-limited IF signal from an FM receiver is coupled to a pair of linear amplifiers in a cascade configuration. The outputs from the amplifiers are detected and passed to piecewise linear amplifiers. Each piecewise linear amplifier is designed to exhibit a gain characteristic which is dependent on the level of signals applied at its input. A summing circuit sums the piecewise linear amplified signals in predetermined proportion to thereby produce a DC signal which is linearly related to the receiver's quieting level.
10 citations
TL;DR: In this paper, a dc coupled single channel pulse height analyzer with linearity better than 0.05% within the range from 50 mV to 10V was described, which is the state-of-the-art.
TL;DR: In this paper, a computational method has been devised for optimizing holograms of high dynamic range (HDR) of a slit and application to holographic correlation has been shown, where the Fourier hologram of the slit is used.
Abstract: A computational method has been devised for optimizing holograms of high dynamic range. As an example the Fourier hologram of a slit is given and application to holographic correlation is shown.