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    • 7. 发明授权
    • Frequency division multiplex/FM modulation recognition system
    • 频分复用/ FM调制识别系统
    • US4845707A
    • 1989-07-04
    • US161514
    • 1988-02-29
    • Ronald L. IsaacsonAmy L. Moore-McKee
    • Ronald L. IsaacsonAmy L. Moore-McKee
    • H04B14/00
    • H04B14/002
    • A recognition system for comparing energy distributions of incombing emitters with known frequency spectrums is shown. Frequency spectrum analysis of randomly generated signals produces references against which the incoming communication wave may be checked. the recognition system recognizes a plurality of subchannel modulation types. Since there are many different subchannel modulation types in use today, small tactical weapons systems must recognize a number of different signals. Once certain parameters describing each subchannel modulation type are provided to the recognition system, the spectrum analysis of the subchannel modulation types is stored for subsequent use. This system provides for recognizing various FSK signals, PSK signals and OOK signals, as well as being adaptable to tracking other signals which are defined in terms of certain parameters.
    • 显示了一种用于比较收集发射器的能量分布与已知频谱的识别系统。 随机产生的信号的频谱分析产生可以检查入局通信波的参考。 识别系统识别多个子信道调制类型。 由于目前使用许多不同的子信道调制类型,小型战术武器系统必须识别许多不同的信号。 一旦将描述每个子信道调制类型的某些参数提供给识别系统,则存储子信道调制类型的频谱分析用于随后的使用。 该系统提供用于识别各种FSK信号,PSK信号和OOK信号,以及适应于跟踪根据某些参数定义的其他信号。