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- This paper introduced the design and development of a virtual frequency sweeper based on DDS technology.The DDS technology and the method to design the frequency sweeping generator were illustrated. 摘要介绍了基于DDS技术的虚拟扫频仪的硬件与软件设计,并详述了DDS技术以及用该技术实现扫频信号源的方法。
- video frequency sweep generator 视频扫描信号发生器
- frequency sweep generator 扫频发生器
- LFM is one of widely used methods of ISAR.Nonlinearity in frequency sweep has some effects on the quality of imaging. 摘要线性调频法是逆合成孔径雷达(ISAR)成像中一种常用的方法,在该方法中扫频非线性对成像质量有一定的影响。
- The corresponding frequency of the key parts of the poplar particle presswood pallet at maximal transmissibility was determined by frequency sweep test. 摘要采用扫频试验得出振动台对托盘关键部位最大传递率所对应的频率。
- bootstrap sawtooth sweep generator 自举锯齿波扫描振荡器
- Design of a Multi-functional Sweep Generator 一种多功能扫频仪的设计
- Frequency Sweep Meter and the Uses 扫频仪及其使用
- accurat generator sweep generator 精密扫描发生器
- This sweeping generalization is the law of conservation of energy. 这一透彻的概括就是能量守恒定律。
- logarithmic frequency sweep rate 对数频率扫描速率
- This vast continent doesn't lend itself to sweeping generalization. 这样大一个洲,要作全面的概括是不容易的。
- broadband frequency sweep jamming 宽带扫频式干扰
- A frequency sweeper with DDS chip AD9850 and a Philips microcontroller P89C51RC2 was designed. DDS扫频仪以菲力浦单片机P89C51RC2控制DDS芯片AD9850,用PC机显示扫频结果。
- This sort of sweeping generalization may be acceptable in the 1930's. 这样的一概而论在30年代也许可以接受。
- This sort of sweeping generalization may have been acceptable in the 1930's. 这样的一概而论在30年代也许可以接受。
- frequency sweeping signal generator 扫频信号发生器
- This sort of sweeping generalization may have is acceptable in the 1930's. 这样的一概而论在30年代也许可以接受。
- This sort of sweeping generalization might have been acceptable in the 1930's. 这样的一概而论在30 年代也许可以接受。
- The frequency response of undistorted transmitted system is introduced, and JH6170 electroacoustic testing system based on frequency sweeping method is analysed. 摘要介绍了无失真传输系统的频率响应特性,分析了基于扫频法测量系统频响的JH6170电声测试系统。