Materials with nonlinear optical properties are of critical importance for a diverse range of photonic applications, such as optical regeneration, switching, modulation, sampling, and noise suppression.
Three of the jamming modes, namely noise amplitude modulation (AM) jamming, noise frequency modulation (FM) jamming, and noise phase modulation (PM) jamming are discussed in this paper as follows.
Note that the table does not show some results obtained with the π/4-DQPSK modulation and high noise attenuation, due to the difficulty of measuring a stable value of the BER when this parameter is very low.
Several authors have also demonstrated the difficulty of auditory change perception tasks using artificial (synthesized) scenes such as pure tones shaped into scenes via amplitude modulation and shaped noise arrays (e.g., Constantino et al., 2012).
This type of differential modulation of signal and noise at varying DA levels is predicted by computational models that simulate the known effects of DA on AMPA, GABA and NMDA currents [40], [41], [74] [76].
Scatter diagram of the received symbols (I/Q components) illustrating a nonlinear effects from imprecise amplifier compensation for 64-APSK modulation and b phase noise from receiver oscillator instabilities for 64-QAM constellation.
By positioning the modulation between the signal and noise bands of the neuro-vascular imaging method, the resulting sequence markedly improves detection power.
We follow metrics of image quality including modulation transfer function (MTF) and noise power spectrum (NPS) from projection images to 3D reconstructions to in-plane slices and apply a task based figure-of-merit, the ideal observer signal-to-noise ratio (d') to determine the effect of detector design on object detectability.
The differences could be traced back mainly to differences in the modulation transfer function (MTF) and noise power spectrum (NPS) determination.
