用于移动卫星通信的数字机载多载波解调器

IEEE International Conference on Communications, - Spanning the Universe. Pub Date : 1988-06-12 DOI:10.1109/ICC.1988.13619

T. Alberty, G. Bjornstrom, H. Eyssele, H. Gockler, V. Hespelt

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引用次数: 5

摘要

描述了用于(陆地)移动卫星通信系统回程上行链路的32通道星载多载波解调器的电气演示模型的开发。使用滤波后的QPSK调制，以9.6 kb/s的速率传输连续模式编码语音和数据以及数据包。实现是完全数字化的。描述了基于高度模块化和计算效率高的分层多级方法的解复用器的设计和性能，以及随后的解调器。通过使用参数估计技术和复杂的频率、相位和定时控制回路，获得了良好的解调器采集和跟踪性能

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Digital on-board multicarrier demodulator for mobile satellite communications

The development of an electrical demonstration model of a 32-channel on-board multicarrier demodulator for the return up-link of a (land) mobile satellite communication system is described. Continuous-mode coded speech and data as well as data packets are transmitted at a rate of 9.6 kb/s using filtered QPSK modulation. The implementation is fully digital. The design and obtained performance of the demultiplexer, based on the highly modular and computationally efficient hierarchical multistage method, and the subsequent demodulator are described. Good demodulator acquisition and tracking performance are obtained by the use of parameter estimation techniques and sophisticated frequency, phase and timing control loops.<>

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IEEE International Conference on Communications, - Spanning the Universe.

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