Results 261 to 270 of about 1,056,129 (315)

Probabilistic Amplitude Shaping

Foundations and Trends® in Communications and Information Theory, 2023
Probabilistic amplitude shaping (PAS) proposed in Böcherer, Steiner, Schulte [24] is a practical architecture for combining non-uniform distributions on higher-order constellations with off-the-shelf forward error correction (FEC) codes. PAS consists of a distribution matcher (DM) that imposes a desired distribution on the signal point amplitudes ...
openaire   +2 more sources

Amplitude-smoothed BPOF and amplitude-smoothed amplitude-encoded BPOF

SPIE Proceedings, 1990
In this paper smoothed binary phaseonly filtcr(ASBPOF) and amplitude smoothed amplitude encoded BPOF(ASAEBPOF) are presented. By computer simulation in the case of symmetrical and unsymmetrical characters it is concluded that with the BPOF and AEBPOF these filters sacrifice light efficiency due to the amplitudesmoothed factor it yield much better ...
Wenjian Chen, SongLing Bian, ChunKan Tao, Xiaolin Yu   +3 more
openaire   +1 more source

Amplitude density of a finite amplitude wave

The Journal of the Acoustical Society of America, 1979
A theoretical analysis of the effect of nonlinear propagation distortion on the amplitude density of a sample noise signal in a lossless medium is given. It is found that under certain general conditions the amplitude density prior to shock formation is unaffected by the distortion.
Don A. Webster, David T. Blackstock
openaire   +1 more source

Offset-amplitude variation and controlled-amplitude processing

Geophysics, 1985
Abstract The partition of plane seismic waves at plane interfaces introduces changes in seismic amplitude which vary with angle of incidence. These amplitude variations are a function of the elastic parameters of rocks on either side of the interface. Controlled-amplitude processing is designed to obtain the true amplitude information
openaire   +1 more source