In this paper, supposing that the received signals at the input are of the formv（t）=s1[t, x1（t）]s2[t, x2（t）]+n（t） where si are FM signals （i=1, 2）, a novel cross-coupledphase-locked loop （CCPLL（M）） and its mathematical model are obtained. The globalqualitativestructural analysis of the mathematical model of the first-order loop, the acqui-sition region and synchronization region of the first-order loop, and the synchronizationregion of the second-order loop are obtained.
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机译：在本文中，假设输入处的接收信号是FormV（t）= s 1 [t，x 1 （t）] s 2 [t，x 2 （t）] + n（t）其中s i 是fm信号（i = 1,2），一个新的交叉耦合锁定的环路（CCPLL（M））及其数学模型获得。一阶环路的数学模型的globalqualitativestructural分析，得到阿奎-sition区域和第一阶环路的同步区域，并且所述第二阶环路的synchronizationregion。
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