首页> 外国专利> METHOD AND SYSTEM FOR DETECTING USEFUL SIGNALS WITH RESPECTIVE NON-NEGLIGIBLE FREQUENTIAL DERIVATIVES IN A GLOBAL SIGNAL

METHOD AND SYSTEM FOR DETECTING USEFUL SIGNALS WITH RESPECTIVE NON-NEGLIGIBLE FREQUENTIAL DERIVATIVES IN A GLOBAL SIGNAL

机译:在全局信号中使用特定的不可忽略的频率导数检测有用信号的方法和系统

摘要

The present invention relates to a method (50) for detecting signals useful in a global signal, each useful signal being assignable to a frequency drift, comprising a detection phase comprising: a calculation (51) of frequency spectra of detection of the global signal for several detection time windows, a detection (52) of useful signals as a function of the detection frequency spectra, and an estimation phase comprising, for each detected useful signal: a frequency registration (55) of the signal global for several frequency drift values, - a calculation (56) of a frequency spectrum for estimating the overall signal for each frequency drift value over an estimation time window comprising said detected useful signal, of duration greater than the duration of the detection time window, - an estimate (57) of the frequency drift affecting said detected useful signal as a function of frequency spectra of estimation.
机译:本发明涉及一种用于检测在全局信号中有用的信号的方法(50),每个有用信号可被分配给频率漂移,该方法包括检测阶段,该检测阶段包括:用于检测全局信号的​​频谱的计算(51)。几个检测时间窗,作为检测频谱的函数的有用信号的检测(52)和估计阶段,对于每个检测到的有用信号,该阶段包括:针对多个频率漂移值的全局信号的​​频率配准(55), -频谱的计算(56),用于在持续时间大于检测时间窗口的持续时间的包括所述检测到的有用信号的估计时间窗口上针对每个频率漂移值估计总信号,-估计(57)影响所述检测到的有用信号的频率漂移是估计频谱的函数。

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