高頻信道參數(shù)估計中時延和初相對估計精度的影響
EFFECTS OF ORIGINAL PHASE AND TIME-DELAY ON THE HF CHANNEL PARAMETER ESTIMATION
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摘要: 本文首次提出了時延和初相是影響多音復(fù)包絡(luò)法測量精度的兩個主要因素;從理論上分析了其影響原理;由計算機(jī)模擬作了性能比較;并提出了3種消除這種影響的可能途徑。
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關(guān)鍵詞:
- 高頻信道; 實(shí)時信道估值; 時延; 初相; 多音法
Abstract: It is proposed firstly that the original phase and time-delay are the main factors which affect the measuring resolution of the multitone complex envelope method. The effects of these factors are analysed and checked by the computer simulation. Finally, three possible ways to eliminate these effects are given. -
P. A. Bello, IEEE on Trans. on COM, COM-13 (1965)3, 285-292.[2]J. M. Perl, IEEE on Trans. on COM, COM-34(1986)1,54-58.[3]李旭,陳尚勤,電子科技大學(xué)學(xué)報,21(1992)5,457-463.[4]沈琪琪等,短波通信,西安電子科技大學(xué)出版社,西安,1990年,第1,2章.[5]戴耀森,高頻時變信道,人民郵電出版社,北京,1985年,第4章. -
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