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
    • 1. 发明申请
    • A METHOD OF GENERATING A DIGITAL PHASE AND AMPLITUDE MODULATED SIGNAL
    • 一种产生数字相位和幅度调制信号的方法
    • WO2005125144A1
    • 2005-12-29
    • PCT/GB2005/002392
    • 2005-06-13
    • ROKE MANOR RESEARCH LIMITEDDOBROSAVLJEVIC, ZoranSPICER, John
    • DOBROSAVLJEVIC, ZoranSPICER, John
    • H04L27/36
    • H04L27/365
    • A method of generating a digital phase and amplitude modulated signal, the modulated signal carrying a multiplex of binary symbols from information that is calculated in advance and stored comprises defining the multiplexing technique and a conversion of a set of binary symbols at a time of the multiplex into an enumerated state corresponding to an amplitude and phase state of the modulated signal. All possible sampled transition trajectories of amplitude and phase of the modulated signal between two consecutive states are stored and a pair of states sequentially read from the store are used as a pointer to an entry of the stored sampled transition trajectories. The entry of the stored sampled transition trajectories contains a sampled transition of the modulated signal for a range of times. A complete modulated multiplexed waveform is sequentially constructed as a succession of segments of the modulated signal, read from the stored sampled transition trajectories.
    • 一种产生数字相位和幅度调制信号的方法,所述调制信号承载来自预先计算并存储的信息中的二进制符号的复用,包括定义复用技术和多路复用时的一组二进制符号的转换 变成与调制信号的幅度和相位状态对应的枚举状态。 存储在两个连续状态之间调制信号的振幅和相位的所有可能的采样过渡轨迹,并且将从存储器顺序读取的一对状态用作指向所存储的采样过渡轨迹的条目的指针。 存储的采样过渡轨迹的入口包含一段时间内的调制信号的采样转换。 完整的调制多路复用波形被顺序地构成为从存储的采样过渡轨迹中读出的调制信号的一系列段。