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ADS谐波平衡仿真中以下警告严重程度?

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Simulation / Synthesis Messages
Warning detected by hpeesofsim during DC analysis `HB1'.Matrix is singular (detected at node or branch `X4.L17.i').
Warning detected by hpeesofsim during DC analysis `HB1'.Circuit converged after a virtual resistance of 1 TOhms was added between each node and ground, and a virtual resistance of 1 pOhms was inserted in each current branch.Possible causes include floating nodes or missing ground.
我是在仿真倍频器上出现的,知情者解答之,万分感谢!

 

好像是说仿真不能够收敛,建议你检查是不是有悬空的节点(floationg node)或者缺少接地(missing ground)

 

把你的schematic附上!

 

仿真有频谱出现,而且大致也够理想,不知道这个警告怎么解决,没有悬空的节点(floationg node)和缺少接地(missing ground)

 

八成是参数设错了或电路练错了,你再对比教程仔细看看

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