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1、5-15-1题目改为:题目改为:Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.分析:分析:解解: (1)AM波形:波形:Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.(2)DSB波形:波形:Evaluation only.Created
2、 with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.5-4: 解:解:Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.5-7:解:解:Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0
3、.Copyright 2004-2011 Aspose Pty Ltd.5-13(a)i1i2i解:电流方向如图所示:解:电流方向如图所示:Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.5-13(b)i1i2i解:电流方向如图所示:解:电流方向如图所示:D1的开关函数均为的开关函数均为 ,D2的开关函数均为的开关函数均为Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd. 若在输出端加一个中心频率为若在输出端加一个中心频率为 ,通带宽为通带宽为 的带的带通滤波器,可取出通滤波器,可取出 分量,实现双边带调幅分量,实现双边带调幅Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.