VWDK調制的波形優(yōu)化
On Optimization of VWDK Modulated Waveforms
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摘要: 高帶寬傳輸效率和高邊帶抑制水平對無線電通信有著重要的意義。該文利用甚小波形差健控(VWDK)已調波形的功率譜結構對其基本波形進行優(yōu)化，得到帶寬更窄、邊帶抑制更好的VWDK調制波形。Abstract: The high efficiency in bandwidth and high suppression to sidebands are very meaningful for wireless communications. Based on the composition of its modulated waveforms and power spectra, the optimization to very-minimun waveforms difference keying modulations is put forward, and the advanced modulated waveforms with narrower bandwidth and lower sidebands are obtained.
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Walker H R. VPSK and VMSK modulation transmit digital audio and video at 15 bit/sec/Hz[J].IEEE Trans. Broadcasting.1997, 43(1):96-103[2]Sayhood K H, Wu Lenan. Raise bandwidth efficiency with sine-wave modulation VMSK. Microwaves and RF Mag., (U.S.A.), 2001, 40(4): 79-84.[3]李小平, 吳樂南. 一類規(guī)范的類正弦VMSK調制的功率譜分析. 電波科學學報, 2003, 18(6): 722-726. -
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