| 相位法激光测距信号源系统研究 |
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| 引用本文： | 姜明富,曾一凡,杨艳.相位法激光测距信号源系统研究[J].测绘科学,2011,36(2):14-16. |
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| 作者姓名： | 姜明富 曾一凡 杨艳 |
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| 作者单位： | 沈阳工业大学信息科学与工程学院; |
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| 摘 要： | 为了使相位式激光测距获得更好的调制信号源,采用了基于单片机控制DDA芯片AD9851产生频率可调,相位可控的信号源,由于DDS具有噪声低,频率分辨率高,易于编程等优点,根据实际需要,通过给AD9851编程获得不同的频率,满足不同距离的测量.由于获得的信号源中存在着高频杂散信号,设计了最接近理想特性的椭圆低通滤波器,并给...
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| 关 键 词： | 信号源 相位法激光测距 AD9851 椭圆滤波器 Pspice8.0 单片机 |
Signal generator system of phase laser range finder |
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| JIANG Ming-fu,ZHENG Yi-fan,YANG Yan.Signal generator system of phase laser range finder[J].Science of Surveying and Mapping,2011,36(2):14-16. |
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| Authors: | JIANG Ming-fu ZHENG Yi-fan YANG Yan |
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| Institution: | JIANG Ming-fu,ZHENG Yi-fan,YANG Yan(School of Information Science and Engineering,Shenyang University of Technology,Shenyang 110178,China) |
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| Abstract: | In order to get a better modulated signal sources in phase laser range finder,microcontroller unit controlling with DDS chip AD9851 to generate adjustable frequency and controllable phase signal source was adopted in the paper.DDS has the low noise and high frequency resolution.It is easy to program and so on.According to reality,different frequency by AD9851 programming could be gained.It can meet the different distance measurement.High noise frequency always comes along with the signal source.Elliptic fil... |
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| Keywords: | signal source phase laser range finder AD9851 elliptic filter Pspice8 0 microcontroller unit |
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