Influence of nonlinear HPA on trellis-Coded OFDM for terrestrial broadcasting of digital HDTV
Influence of nonlinear HPA on trellis-Coded OFDM for terrestrial broadcasting of digital HDTV
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非线性HPA对数字高清电视地面广播网格编码OFDM的影响
DOI：
10.1109/glocom.1993.318310
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
W. Sauer
中科院分区：
文献类型：
--
作者：
E. Bogenfeld;R. Valentin;K. Metzer;W. Sauer
研究了一种在地面超高频信道上传输数字高清电视（HDTV）信号的系统方案。作者比较了未编码的16-QAM和栅格编码的32-CROSS调制结合正交频分复用（OFDM）过程。仿真结果显示了发射机大功率放大器（HPA）引入的非线性畸变对系统性能的影响。作为HPA，作者考虑了行波管放大器（TWTA）和固态功率放大器（SSPA）。使用时不变多径模型模拟了单频网络（SFN）中HDTV信道的特性
The paper investigates a system proposal for transmitting digital high-definition television (HDTV) signals over terrestrial UHF channels. The authors compare uncoded 16-QAM and trellis-coded 32-CROSS modulation in conjunction with an orthogonal frequency division multiplexing (OFDM) procedure. The simulations show the influence of the nonlinear distortions introduced by the high-power amplifier (HPA) of the transmitter. As HPA the authors consider a travelling wave tube amplifier (TWTA) and a solid state power amplifier (SSPA). The characteristics of the channel for HDTV in a single frequency network (SFN) is simulated using a time-invariant multipath model.<<ETX>>
影响因子：
2.5
作者：
UNGERBOECK, G
通讯作者：
UNGERBOECK, G