COFDM系統(tǒng)在非理想定時(shí)同步條件下的信道估計(jì)
Channel Estimation Technique for COFDM System in Wireless Channel with Timing Offset Error
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摘要: 該文深入研究了數(shù)字電視地面無(wú)線廣播COFDM解調(diào)方案中的信道估計(jì)與內(nèi)插技術(shù)，針對(duì)接收系統(tǒng)前端符號(hào)定時(shí)同步誤差對(duì)于信道估計(jì)性能的影響，提出了兩種適用于COFDM梳狀導(dǎo)頻系統(tǒng)的信道估計(jì)解決方案，并給出了其性能和可適用性分析。Abstract: This paper investigates the channel estimation and interpolation technique in digital video broadcasting COFDM demodulation scheme. To combat the OFDM symbol timing synchronization offset error,it proposes two channel estimation methods suitable for the comb-type pilot scheme.and the analyse of performance and adaptation is also presented.
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