一种适用于中高数据速率业务的新型16元QAM解调器

IEEE Global Telecommunications Conference GLOBECOM '91: Countdown to the New Millennium. Conference Record Pub Date : 1991-12-02 DOI:10.1109/GLOCOM.1991.188626

P. Fines, A. Aghvami

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引用次数: 1

摘要

提出了一种适用于中高比特率(2mb /s ~ 100mb /s)陆地移动卫星通信的16编差分编码正交调幅(16-DEQAM)解调器，并对其性能进行了评价。介绍了该系统所采用的数字同步和数字检测技术。通过广泛使用查找表和对极信号表示的并发数字信号处理，有效地克服了硬件速度限制。在加性高斯白噪声(AWGN)和梯度衰落信道下进行了误码率(BER)性能的计算机仿真。

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A new 16-ary QAM demodulator for medium and high data rate services

A 16-ary differentially encoded quadrature amplitude modulation (16-DEQAM) demodulator for medium- and high-bit-rate (from 2 Mb/s to 100 Mb/s) land mobile satellite communication is proposed, and its performance is evaluated. The digital synchronization and digital detection techniques used in this system are described. The hardware speed limitations have been overcome effectively with extensive use of lookup tables and concurrent digital signal processing on a polar signal representation. The bit error rate (BER) performance was evaluated by computer simulation over additive white Gaussian noise (AWGN) and Rician fading channels.<>

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IEEE Global Telecommunications Conference GLOBECOM '91: Countdown to the New Millennium. Conference Record

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