摘要
为了适应非线性的无线电通信,改进型的QPSK通信系统,即OQPSK系统得到了快速发展。分析了OQPSK通信系统的调制与解调的原理,建立系统模型,模拟仿真OQPSK通信系统的过程,将基带信道分为上下两条支路,正交延时交错传输降低了相位的跳变。实验结果表明,OQPSK通信系统误码率较小,码间串扰较小,抗干扰能力较强,通信质量较高。为提高现代无线电通信质量,提供了一种新的技术思想。
In order to adapt nonlinear communication, a modification of Quadrature Phase Shift Keying system as OQPSK system has been rapid development. The principle of QPSK modulation and demodulation were analyzed, and established the model to simulate the communication systems process,the baseband signal is divided into two branches, the orthogonal interleaving transmission delay reduces the phase transition. The results show that it is less error rate, inter-coding interfere, and higher quality of OQPSK communication system. It is more suitable for modern communication nonlinear radio communication. A new technical idea is provided in order to improve the quality of modern radio communication.
出处
《商洛学院学报》
2016年第2期31-34,共4页
Journal of Shangluo University
基金
商洛学院教育教学改革研究项目(15JYJX120)
关键词
正交相移键控
偏移正交相移键控
眼图
误码率
quadrature phase shift keying
offset quadrature phase shift keying
eye diagram
error rate
