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FFH-OFDM子信道噪声的混合增益

The Hybrid Gain of Noise in FFH-OFDM Subchannels
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摘要 快速跳频正交频分复用(FFH-OFDM)将快速跳频图案与常规OFDM技术相结合,在信号发送周期内使数据分时隙在各个子信道进行跳频,并且具有遍历性。在多径引起的频率选择性衰落信道条件下,FFH-OFDM可以通过预编码矩阵有效地将不同子信道的噪声影响平均化,从而有效提高系统误码性能。 FFH -OFDM combines FFH with regular OFDM. The symbols hops in each subehannels in chips during the symbol period. When applied to frequency- selective channels caused by multi - path, FFH -OFDM can average the noise at different subchannels using pre- coding matrix,which makes better performance in bit errors.
作者 钱璟 张申如
出处 《现代电子技术》 2007年第17期9-11,共3页 Modern Electronics Technique
关键词 正交频分复用 快速跳频 预编码 混合增益 OFDM FFH pre - coding hybrid gain
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参考文献5

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