VWDK调制的波形优化
On Optimization of VWDK Modulated Waveforms
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摘要: 高带宽传输效率和高边带抑制水平对无线电通信有着重要的意义。该文利用甚小波形差健控(VWDK)已调波形的功率谱结构对其基本波形进行优化，得到带宽更窄、边带抑制更好的VWDK调制波形。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, 吴乐南. 一类规范的类正弦VMSK调制的功率谱分析. 电波科学学报, 2003, 18(6): 722-726. -
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