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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.
