会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明授权
    • Electromagnetic matched filter based multiple access communications systems
    • 基于电磁匹配滤波器的多址通信系统
    • US06885713B2
    • 2005-04-26
    • US09752392
    • 2000-12-29
    • Tim OlsonUlf OsterbergDennis HealySeung Choi
    • Tim OlsonUlf OsterbergDennis HealySeung Choi
    • H04J14/02H04L25/03H04B1/10
    • H04J14/02H04L25/03834
    • An electromagnetic matched filter based multiple access communications system having a source of modulated pulses from a digital data stream; an initial filter which shapes the incoming modulated pulse into a desired pulse for transmission across the communication medium; a second filter, identical to the initial filter, which is matched to the pulse which exit the communication medium, a detector which converts the modulated pulse stream into the original digital data stream, and signals which are designed with specific mathematical properties which make the system efficient and minimizes crosstalk between channels. The signals decay rapidly from the central lobe at a higher than 1/x rate and the zero points of the autocorrelation function having high order multiplicities. The type of system allows multiplexing of multiple data streams with much greater flexibility, robustness, and density.
    • 一种基于电磁匹配滤波器的多址通信系统,具有来自数字数据流的调制脉冲源; 初始滤波器,其将输入的调制脉冲整形为期望的脉冲以在通信介质上传输; 与初始滤波器相同的第二滤波器,其与离开通信介质的脉冲匹配;将调制脉冲流转换成原始数字数据流的检测器,以及设计有特定数学特性的信号,其使系统 高效并最小化通道之间的串扰。 信号以高于1 / x的速率从中心波瓣迅速衰减,并且自相关函数的零点具有高阶多项式。 系统的类型允许多个数据流的复用具有更大的灵活性,鲁棒性和密度。