This paper investigates the design and performance of delayed bit-interleaved coded modulation (DBICM) with low-density parity-check (LDPC) codes. For Gray labeled square M-ary quadrature amplitude (QAM) constellations, we investigate optimal delay scheme largest spectrum efficiency DBICM for a fixed maximum number time slots given signal-to-noise ratio. When analyzing capacity DBICM, find two ...

Abstract. The geometric calibration of cameras becomes necessary when images should be undistorted, image information is needed or data from more than one camera have to fused. This process often done using a target with checkerboard circular pattern and given geometry. In this work, coded for thermal imaging the corresponding processing algorithm iterative feature detection are presented. It s...

We report optimized design of multilayered electromagnetic shield using real coded genetic algorithm. It is observed that the shielding effectiveness in multilayer design is higher than single layered counterpart of equal thickness. An effort has been made to develop an alternative approach to achieve specific objective of identifying the design characteristics of each layer in the multilayered...

Sparse code multiple access (SCMA) is an emerging paradigm for efficient enabling of massive connectivity in future machine-type communications (MTC). In this letter, we conceive the uplink transmissions low-density parity check (LDPC) coded SCMA system. Traditional receiver design LDPC-SCMA system, which based on message passing algorithm (MPA) multiuser detection followed by individual LDPC d...

The purpose of a voice conversion (VC) system is to change the perceived speaker identity of a speech signal. In this paper, we propose a new algorithm based on converting the LPC spectrum and predicting the residual as a function of the target envelope parameters. We conduct listening tests based on speaker discrimination of same/difference pairs to measure the accuracy by which the converted ...

T study demonstrates the advantages of using a real coded genetic algorithm (GA) for aerospace engineering design applications. The GA developed for this study runs steady state, meaning that after every function evaluation the worst performer is determined and that worst performer is then thrown out and replaced by a new member that has been evaluated. The new member is produced by mating two ...

Most design approaches for trellis-coded quantization take advantage of the duality of trellis-coded quantization with trellis-coded modulation, and use the same empiricallyfound convolutional codes to label the trellis branches. This letter presents an alternative approach that instead takes advantage of maximum-Hamming-distance convolutional codes. The proposed source codes are shown to be co...