Four-dimensional QPSK modulation transmission scheme based on entropy-coding-aided symbol selection.
We propose a four-dimensional quadrature phase shift keying (4D-SS-QPSK) modulation transmission scheme based on entropy-coding-aided symbol selection. The proposed scheme integrates Huffman coding ...
Abstract: All-optical format conversion is a key function in providing flexible management and interface for optical networks with different formats. In this paper, we propose and demonstrate ...
在实践中发现了不同版本vivado导入xci IP核配置文件获导入打开工程文件时，可能在Update IP core时将原有的IP核配置进行变动 ...
Abstract: The six-polarization shift keying quadrature (6PolSK-QPSK) has been proved to be an alternative to four-dimensional (4D) modulation scheme. A variety of transmission compensation schemes ...
As an important part of the communication system, synchronization technology is a communication system to run the correct protection, has been a hot topic in communication systems research. Four-phase ...
Quadrature phase shift key is a one of the digital modulation schemes that use Phase-shift keying. One popular varient of QPSK is offset QPSK or OQPSK. What is the difference between these two ...
本科学的通信读研了没在做，也算是出于兴趣完成的工程，难免有纰漏，后续会抽空将本工程逐渐完善。若有任何问题 ...
For the QPSK modulator shown in the figure above, construct the truth table, phasor diagram, and constellation diagram. In Figure 2, it can be seen that with QPSK, each of the four possible output ...
Fig 1. A DP-QPSK transmitter and a coherent receiver with ADC and DSP are key analog components for long-distance transmission systems. Fig 2. Shown is the measured (blue, green) and simulated (red) ...
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