Abstract: Techniques are described for optically multiplexing and demultiplexing individual pulse code modulation (PCM) channels in order to develop the terminal capability for a high-capacity optical ...

Abstract: An original analysis is presented for spectrum-sliced (SS) transmission employing digital pulse position modulation (PPM) and maximum likelihood detection. The treatment is placed within the ...

Impact Statement: We propose a dimmable visible light communication (VLC) system that efficiently amalgamates multiple pulse position modulation (MPPM) and reverse polarity optical orthogonal ...

Abstract: A novel direction-finding method with time-modulated array (TMA) is proposed for modulating the echo linear frequency modulation (LFM ... of modulated signals are calculated by using the ...

Abstract: AC chopper power circuit driven by asymmetrical Pulse Width Modulation (PWM) is a method which used for improving input power factor. The PWM is created by two signals: a saw-tooth signal ...

Abstract: In this paper, Simpson's rule based selective harmonic elimination-pulse-amplitude modulation (SSHE-PAM) method is proposed for cascaded multilevel inverters. The SSHE-PAM method is free ...

codes with low density parity check matrix, we extend the structure to high-level modulation such as 8PSK, and 16QAM. The structure consists of a simple 4-state convolutional or short block code as an ...

Under the phase-leg based PD-PWM modulation, the upper and lower arms of the modular multilevel converter (MMC) are treated as a whole and coupled with each other. To reasonably distribute pulses in ...

Abstract: Codeword position index based sparse code multiple access (CPI-SCMA) is a novel variant of SCMA that employs the idea of index modulation (IM), which has been proposed recently as an ...

a dual-resonant step-up AC/DC converter based on fixed frequency pulse overlapping modulation is presented in this paper. The voltage regulation is achieved by regulating the overlapping time of the ...

Abstract: The local rank modulation scheme, a generalization of the rank modulation ... We focus on constant-weight Gray codes for the scheme. We represent two constructions for Gray codes of weights ...

Abstract: Two new polyphase pulse compression codes and efficient digital implementation techniques are presented that are very Doppler tolerant and that can provide large pulse compression ratios.