4 order pll simulation using matlab

hungda50310

最近想使用matlab模擬PLL的behavior，

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$ e! g8 L7 j( K% O! W9 O-------------------------------------------------------
At time 1.654088834175351e-009, simulation hits (1000) consecutive zero
2 a1 N! |+ q& E9 g( ecrossings. Consecutive zero crossings will slow down the simulation or cause
& I  z0 }9 N% }& r  ?$ D: m1 U6 i0 Pthe simulation to hang. To continue the simulation, you may 1) Try using
- _! u! T$ ?( QAdaptive zero-crossing detection algorithm or 2) Disable the zero crossing of
! `# O8 e+ W* Q: K5 K3 Xthe blocks shown in the following table.
/ y0 g# o: L5 a% i: K2 R+ L: S----------------------------------------------------------

, `1 e; T" @( Z( p3 ~$ Z請問大家這問題該如何解?

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http://www.badongo.com/file/27315449
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