| 基于DDS改进BT-4型扫频仪 |
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| 引用本文： | 张伟民,苏岱安. 基于DDS改进BT-4型扫频仪[J]. 现代电子技术, 2006, 29(14): 121-122,126 |
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| 作者姓名： | 张伟民 苏岱安 |
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| 作者单位： | 1. 空军95107部队,广东,广州,510500;湖南大学,湖南,长沙,410082
2. 湖南商学院,湖南,长沙,410205 |
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| 摘 要： | 基于DDS技术,改造BT 4型扫频仪中的扫频信号发生器,使其具有高稳定度、高分辨率、高精度的特点。同时为了使扫频仪能够对被测电路的动态范围进行检测,使扫频仪得到更广泛的应用,运用了AGC控制技术,首先使电压稳定在10 V;然后通过控制D/A使输出电压按测试需要输出。硬件给出了具体电路参数,软件给出了相应软件流程,总结了其他波型产生的方法。
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| 关 键 词： | DDS信号源 受控放大 电压监测 幅度调节 |
| 文章编号： | 1004-373X（2006）14-121-02 |
| 收稿时间： | 2006-02-10 |
| 修稿时间： | 2006-02-10 |
Improving Sweeper BT-4 by DDS-based Technology |
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| ZHANG Weimin,SU Daian. Improving Sweeper BT-4 by DDS-based Technology[J]. Modern Electronic Technique, 2006, 29(14): 121-122,126 |
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| Authors: | ZHANG Weimin SU Daian |
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| Affiliation: | 1. Unit 95107 of the Air Force, Guangzhou, 510500, China; 2. Hunan University., Changsha, 410882, China; 3. Hunan Business College, Shangsha, 410205, China |
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| Abstract: | Based on DDS technology,the sweep signal generator of sweeper BT4 is remade to improve the overall performance,featuring higher stability,resolution and precision.Meanwhile,AGC control technology is also applied.The practice is to produce a stabilized 10V voltage firstly,and then,by the control on the D/A converter,the testneeded voltage is output.Thus,the improved sweeper BT4 can be used to detect the dynamic range of the units under test.And a wider range of application is provided.Specific circuit diagram and software flow chart of the improvement are presented,as well as the ways to generate all the useful waveforms. |
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| Keywords: | DDS signal source controlled amplification voltage monitoring amplitude adjustment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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