Communications: electrical – Condition responsive indicating system – With particular system function
Reexamination Certificate
2006-03-28
2006-03-28
Goins, Davetta W. (Department: 2632)
Communications: electrical
Condition responsive indicating system
With particular system function
C340S010100, C340S870030, C340S870110, C340S870120, C342S442000, C370S329000, C370S346000, C375S347000, C455S456100, C455S562100
Reexamination Certificate
active
07019635
ABSTRACT:
A method for the detection of M0sources common to several observationsu(t) andv(t) within a single array of sensors, the observations having different lengths N1and N2, comprises at least the following steps: defining a law of likelihood Vuv([M=M0]/M0) substantially equal to the chi-2 law with 2(N1−M0)(N2−M0) degrees of freedom with N1≦N2, dim{u(t)}=N1×1 and dim{v(t)}=N2×1; determining a detection threshold αMin order to obtain a low probability of false alarms and a number of degrees of freedom that takes account of the lengths N1and N2and of the number of sources M0; determining the presence and/or the number of the sources M0in applying the law of likelihood and the threshold αM. The method and device can be applied to the determining of the presence and/or the number of sources common to at least two observations having different lengths in a GSM type radiocommunications system.
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Delaveau François
Ferreol Anne
Goins Davetta W.
Thales
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