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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 COMPENSATION FOR NONLINEAR DISTORTION OF OPTICAL OFDM SIGNALS INDUCED BY ELECTRO-ABSORPTION MODULATED LASERS WITH DIGITAL PREDISTORTION 会议论文 11th International Conference on Optical Communications and Networks (ICOCN), NOV 28-30, 2012 作者:  Shang, Haiyan;  Li, Zhaohui;  Bao, Yuan;  Gui, Tao 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/31 Digital predistortion (DPD)  nonlinear distortion  electro-absorption  modulated laser (EML)  memoryless nonlinear model  optical orthogonal  frequency division multiplexing (O-OFDM)   Blind channel estimation of MIMO-OFDM based on FDPM (EI CONFERENCE) 会议论文 5th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2009, September 24, 2009 - September 26, 2009, Beijing, China Gang W.; Ming Z.; Hua C. 收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25 Subspace based methods have been widely discussed in multichannel estimation including MIMO-OFDM system. However  direct subspace methods suffer from heavy computation complexity y of O(N3). In this paper  a new subspace tracking technique called Fast Data Projection Method (FDPM) is proposed for adaptively tracking the noise subspace. The new algorithm has low complexity of O(NL) and is the only numerically stable  low complexity algorithm for tracking subspaces corresponding to the smallest singular values. Simulation results show that the proposed scheme has similar performance to the original. 2009 IEEE.