Research on Orthogonal Polarized Dual-frequency Laser Beat Frequency Detection

被引：0
|
作者：
Sun Guiling [1 ]
Jiao Guang [1 ]
Liu Bo [1 ]
Li Weixiang [1 ]
机构：
[1] Nankai Univ, Coll Informat Tech Sci, Tianjin 300071, Peoples R China
来源：
FRONTIERS OF MANUFACTURING AND DESIGN SCIENCE, PTS 1-4 | 2011年 / 44-47卷
关键词：
Orthogonal polarized dual-frequency laser; Beat frequency detection; Frequency domain spectrum; Demodulation;
D O I：
10.4028/www.scientific.net/AMM.44-47.1007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, sweep heterodyne method and fast Fourier transform (FFT) are combined to realize the beat frequency detection. The input signal is mixed with the signal generated by the local oscillator (LO), and then is filtered through the middle placed filter. The sweeping signal generated by the DDS is mixed again with the reduced input frequency. After a resolution filter, the signal is processed by FPGA. Beat frequency signal in the range of 800MHz to 1200MHz can be detected with the detection resolution of 10k Hz and the measurement accuracy of 100kHz. The research result has good directive effect on the detection of the beat frequency.
引用
收藏
页码：1007 / 1011
页数：5
相关论文
共 50 条
  • [31] Optimal design for dual-frequency Zeeman laser
    Gao, Xun
    Sun, Guan-Cheng
    Qu, Feng
    Li, Yong-Da
    Zhongguo Jiguang/Chinese Journal of Lasers, 2007, 34 (10): : 1329 - 1332
  • [32] A Dual-Frequency Dual-Polarized Planar Airborne Array Antenna
    Ren, Yu-Jiun
    Hsu, Shih-Hsun
    Li, Ming-Yi
    Chang, Kai
    2008 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-9, 2008, : 45 - 48
  • [33] Research on coherent dual-frequency lidar detection technology for hypersonic target
    Liu X.
    Zhao C.
    Zhang Z.
    Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2019, 48 (11):
  • [34] A simple dual-frequency noise laser rangefinder
    Onori, Daniel
    Azana, Jose
    SPIE FUTURE SENSING TECHNOLOGIES, 2019, 11197
  • [35] Dual-frequency laser displacement and angle interferometer
    Zhao, Shijie
    Wei, Haoyun
    Li, Yan
    OPTICAL METROLOGY AND INSPECTION FOR INDUSTRIAL APPLICATIONS III, 2014, 9276
  • [36] Dual-frequency laser interferometry based on collimation
    Chen, Z
    Yuan, F
    Zhong, L
    Yang, XH
    PROCEEDINGS OF THE THIRD INTERNATIONAL SYMPOSIUM ON INSTRUMENTATION SCIENCE AND TECHNOLOGY, VOL 2, 2004, : 862 - 865
  • [37] CALIBRATION OF THE NASA DUAL-FREQUENCY, DUAL-POLARIZED, DOPPLER RADAR
    Vega, Manuel A.
    Chandrasekar, V.
    Cuong Nguyen
    Mishra, Kumar Vijay
    Carswell, James
    2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS), 2012, : 4625 - 4628
  • [38] A Design of Dual-Frequency and Dual-Circularly Polarized Patches Antenna
    Zhang-Ning
    Zhang-Ruipeng
    Wang-Suixue
    2013 INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY (IWAT), 2013, : 39 - 42
  • [39] DUAL-FREQUENCY ORTHOGONAL STRIP DISTRIBUTIONS OF LINEARLY POLARIZED AND TOTAL RADIATION IN 8 EXTRAGALACTIC RADIO SOURCES
    SEIELSTAD, GA
    WEILER, KW
    ASTRONOMICAL JOURNAL, 1971, 76 (03): : 211 - +
  • [40] CW dual-frequency MOPA laser with frequency separation of 45 GHz
    Hu, Miao
    Zheng, Yaoyuan
    Cai, Ju
    Zhang, Guiju
    Li, Qiliang
    Zhou, Xuefang
    Wei, Yizhen
    Lu, Yang
    OPTICS EXPRESS, 2015, 23 (08): : 9881 - 9889
12345