Intersymbol interference in direct deIII. FABRY-PEROT INTERFEROMETER tection optical systems can limit the channel spacing We consider a Fabry-Perot filter as the optical demultiplexing in frequency division multiplexing and prevent multifilter [1]. The envelope of the impulse response is well approxlevel signaling. We investigate a zero-forcing electrical imated by e t / ' for t > 0. The envel...

Motivated by the classical TV (total variation) restoration model, we propose a new nonlinear filter-the digital TV filter for denoising and enhancing digital images, or more generally, data living on graphs. The digital TV filter is a data dependent lowpass filter, capable of denoising data without blurring jumps or edges. In iterations, it solves a global total variational (or L(1)) optimizat...

a pilot anaerobic filter was used to remove cod from babolsar fiberboard production wastewater. the anaerobic filter was packed with ceramic packings and operated at different organic loading rates of 2.4 and 8 kg cod/m3 /day, in 20, 10 and 5 days hydraulic retention time (hrti), respectively. the reactor achieved cod removal of 80.3%, 81% and 79% for hrt 20, 10 and 5 days, respectively. in add...

We propose a scheme for implementing a multipartite quantum filter that uses entangled photons as a resource. It is shown that the success probability for the 2-photon parity filter can be as high as 1 2 , which is the highest that has so far been predicted without the help of nonlocal quantum gates. Furthermore, the required number of ancilla photons is the least of all current parity filter p...

Introduction The PCM/FM detection system is shown in Fig. 1. The PCM signal is shaped using a premodulation filter, then frequency modulated and transmitted through a channel with additive gaussian noise. The received signal and noise are shaped by a predetection filter. The PCM waveform is recovered using an FM demodulator such as the discriminator, PLL or FCF, and then passed through a PCM De...

Digital images are often corrupted by different noises. These noises can be removed by designing an efficient filter. Based upon the specified operation the pixels are classified. Absolute Difference Based Progressive Switching Median Filter (ADBPSMF) outperforms all other filter for the removal of impulse noise from corrupted images. This filter performs two basic operations for efficient nois...

In studies of vowel perception and production, the formants of the signal are usually estimated using Linear Predictive Coding (LPC) analysis. The order of the LPC filter is typically estimated by starting with a heuristic value (e.g. the sampling frequency in kHz) and adjusting it in a trialand-error manner. This method is adequate when analyzing a few sounds, but it is cumbersome for studies ...