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Performance Analysis of Different Excitation Signals for Sounding Time-Varying Channels
Liu LIU Cheng TAO Jiahui QIU Houjin CHEN
IEICE TRANSACTIONS on Communications
Publication Date: 2012/06/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
sounding channel, excitation signal, time-varying channels,
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In the channel measurement and characterization, selecting a suitable excitation signal for a specified scenario is the primary task. This letter describes several selecting criteria of the excitation signal for channel sounding. And then the popular types of probing signals are addressed and through simulations their accuracy performances are compared in time-varying channels. The conclusion is the Constant Amplitude Zero Auto-Correlation (CAZAC) sequence yields better results in time-varying scenarios.