78高频试卷(A).pdf

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1、1/7 2007 年-2008年第一学期高频电子技术期末考试试卷 A）姓名：学号：专业班级：题号一二三四五总分得分核分人一、填空题 每空 1 分，共 20 分）1.连续波调制有_，_，_三种方式。2.高频小信号放大器主要有以下几个技术指标：_，_，_，_，_。3.一个并联谐振回路参数r，L，C，设电容是理想电容，r是电感上的损耗。那么谐振回路的品质因数是_，并联谐振回路的谐振电阻是_。4.评价振荡器频率的主要指标有两个，即_，_。5.所谓鉴频灵敏度指为使鉴频器正常工作所需的_ 的幅度。6.某已调波的频带为，若将调制信号频率F 和信号幅度均加大一倍，则使已调波的频带变为，。请填写下列已调波的n

2、值：标准调幅波n=_，宽带调频波n=_。7.检波的作用是从调幅波中不失真的检出_信号来。从频谱上看，就是将调幅波的边带信号不失真的搬到_频附近。8.根据高频功率放大器的负载特性曲线，在欠压时，_和_几乎不变，因此可以把放大器当作恒流源；在过压时，_几乎不变，因此可以把放大器当作恒压源。二、单项选择题每题 1 分，共 5 分）得分评卷人复查人得分评卷人复查人2/7 1.晶体管 y 参数等效电路中，称为 ）输出短路时的输入导纳(C 输入短路时的输出导纳2.二极管混频器和三极管混频器相比较，产生的组合频率 ）A）多 B）少 C）一样3.要想使高频功率放大器的工作状态从临界状态进入过压状态，可以 ）A

3、）当不变，减小B）当不变，减小C）当不变，减小4.利用高频功率放大器的集电极调制特性完成振幅调制，功率放大器的工作状态应选 ）A）欠压 B）临界 C）过压5.下列属于线性电路的是 ）A）高频功率放大器B）正弦波振荡器C）高频小信号放大器三、问答题 每题 6 分，共 18 分）1以单音调制为例，试写出调频波和调相波的数学表达式，并简要说明为什么在模拟通信系统中一般使用调频制而不使用调相制？得分评卷人复查人文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2

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5、4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9

6、文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4

7、G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B

8、5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5

9、G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9

10、U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G93/7 2由示波器测得已调波信号电压的波形如图所示，所示是什么信号的波形，并根据图中给定的数值写出的数学表达式；所示是什么信号的波形，并写出其频谱分量的频率值。图(a 图b）文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 H

11、D5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN

12、2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码

13、:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6

14、 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4

15、ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档

16、编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2

17、V6 HD5R2I9B5F4 ZN2G7Q5A5G94/7 3LC振荡器的起振、平衡和稳定的条件分别是什么？四、判断题 每题 3 分，共 12 分）在振幅条件已满足的前提下，用相位条件去判断下列各图所示振荡器的交流等效电路中，哪些不可能振荡？哪些有可能振荡？对于那些可能振荡的电路，说明在什么条件下才能振荡 (2 543Q1L1L2C1 C2C321C 2C 1L1得分评卷人复查人文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5

18、F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G

19、9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U

20、4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9

21、B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A

22、5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X

23、9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2

24、I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G95/7(3)4）32C 1C2C3L3五、计算题 共 3题，每题15 分，共 45 分。）1、已知一高频功放处于临界状态，输出功率为10 瓦，Vcc=12V，导通角 c=70 度，=0.96，功放管参数:（1）求电源输出功率P=、功放管的损耗Pc、效率 c、负载 Rp；（2）若其他条件不变，输入信号振幅增加一倍，功放的工作状态如何变化，输出功率是多少？（3）若其他条件不变，Rp 增加一倍，功放的工作状态如何变化，输出功率是多少？得分评卷人复查人文档编码:CB10X9U4G2V6

25、 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4

26、ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档

27、编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2

28、V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F

29、4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9

30、文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4

31、G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G96/7 2、一高频小信号放大器 电路如下图所示。已知工作频 率匝。三极管T1 与 T2 型号相同，它们的y参数为：忽略 yre,（1）画出交流等效电路要求在图中对应标出14 各点）；（2）计算回路电容C注：不要忽略三极管T1 的 Coe以及 T2 的 Cie 的影响）；（3）计算|Av0|、通频带

32、、插入损耗。文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB

33、10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD

34、5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2

35、G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:

36、CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6

37、HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 Z

38、N2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G97/7 3、已知调制信号伏特，载 波伏 特，用对进 行 标 准 调 幅 比 例 常 数ka=1），求（1）已调信号的表达式（2）中各个频率分量对应的调制指数（3）已调信号中的各分量的频率与振幅，并画出其频谱图，求出已调信号的带宽。（4）若采用下图所示的

39、检波电路对该已调信号进行解调，为了防止频率失真，电容 C与 Cc的取值应满足什么条件？文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9

40、U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I

41、9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5

42、A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10

43、X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R

44、2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9文档编码:CB10X9U4G2V6 HD5R2I9B5F4 ZN2G7Q5A5G9