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Multiple X-ray quasi-periodic oscillations detected in X-ray binary IGR J19294+1816
Chinese astronomers have observed an X-ray binary system designated IGR J19294+1816. As a result, they discovered multiple ...
IEEE3d
On the design and performance of algebraic space-time codes for BPSK and QPSK modulation
We present algebraic constructions for trellis and block space-time codes for BPSK and QPSK modulated systems. The new designs benefit from the algebraic approach and are general for arbitrary number ...
IEEE22d
Design and Optimization of Two-Stage Bias Control for DD-MZM-Based Coherent Optical Modulation
Abstract: This paper presents an optimized control framework for generating quadrature phase-shift keying (QPSK) optical signals using dual-drive Mach-Zehnder modulators (DD-MZMs). QPSK modulation in ...