Efficiency analysis of polarizing filter enhanced signal to noise ratio for daytime star measurement

被引：0
|
作者：
Gou, Wanxiang [1 ]
Li, Chonghui [1 ]
Zhan, Yinhu [1 ]
Yang, Yuan [1 ]
Zheng, Yong [1 ]
机构：
[1] Institute of Surveying and Mapping, Information Engineering University, Zhengzhou,450001, China
来源：
Cehui Xuebao/Acta Geodaetica et Cartographica Sinica | 2024年 / 53卷 / 08期
关键词：
Now; astronomical geodesy can only observe the celestial bodies in the visible band at night; and has not yet achieved all-time measurement. Therefore; studying daytime star measurement technology is very meaningful. In order to enhance the signal-to-noise ratio(SNR) of star measurement in daytime; this paper constructs a polarization filtering SNR enhancement model and analyzes the effectiveness of using polarization filtering method for star measurement SNR enhancement. Firstly; the characterization model of atmospheric polarization state is analyzed; and then a polarization filtering model is put forward based on the Rayleigh scattering model. Then; an enhancement model for improving the SNR is derived; and the SNR enhancement efficiency and influencing factors are analyzed. Finally; two outdoor experimental platforms were built to verify the effectiveness of the model. The experimental results show that in the band of 900-1700 nm; the filtering model constructed based on the Rayleigh scattering model has high accuracy; with 77% of the point polarization angle errors being smaller than 5° and 100% smaller than 12°; which can meet the accuracy requirements for the practical polarization filter model. Through observations of 6 stars; including Arcturus and Kochab; it was shown that the SNR of stars with different observation orientations can be improved by 22 %~ 109%; which is consistent with the SNR enhancement model. The use of polarization filtering method for daytime star measurement in the entire sky has important application value. When the maximum polarization degree of the entire sky is 0. 65; the average polarization degree can reach 0. 34; and the corresponding star measurement SNR can be improved by about 51. 5%. © 2024 SinoMaps Press. All rights reserved;
D O I：
10.11947/j.AGCS.2024.20230416
中图分类号：
学科分类号：
摘要：
引用
收藏
页码：1574 / 1585
相关论文
共 50 条
  • [1] Microrobotic Swarms for Intracellular Measurement with Enhanced Signal-to-Noise Ratio
    Wang, Xian
    Wang, Tiancong
    Chen, Xin
    Law, Junhui
    Shan, Guanqiao
    Tang, Wentian
    Gong, Zheyuan
    Pan, Peng
    Liu, Xinyu
    Yu, Jiangfan
    Ru, Changhai
    Huang, Xi
    Sun, Yu
    ACS NANO, 2022, 16 (07) : 10824 - 10839
  • [2] Optimal measurement of signal over noise ratio with constrained filter transfer functions
    Cattaneo, PW
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 480 (2-3): : 726 - 728
  • [3] Fully automated measurement of noise, signal-to-noise ratio, and contrast-to-noise ratio on chest CT images: feasibility and efficiency
    Mei, Bozhe
    Ma, Zhangman
    Fu, Wanyun
    He, Linyang
    Ma, Zhicheng
    Gong, Xiangyang
    ACTA RADIOLOGICA, 2024, 65 (12) : 1491 - 1498
  • [4] Measurement of Signal-to-Noise Ratio and Signal-to-Noise and Distortion Ratio Using Histogram Test in Time Domain Analysis
    Jain, Manish
    Sharma, Prakash Chandra
    Tiwari, Pradeep Kumar
    Gupta, Rohit Kumar
    SMART SYSTEMS: INNOVATIONS IN COMPUTING (SSIC 2021), 2022, 235 : 403 - 410
  • [5] Signal-to-noise ratio and signal-to-noise efficiency in SMASH imaging
    Sodickson, DK
    Griswold, MA
    Jakob, PM
    Edelman, RR
    Manning, WJ
    MAGNETIC RESONANCE IN MEDICINE, 1999, 41 (05) : 1009 - 1022
  • [6] MAXIMIZATION OF SIGNAL-TO-NOISE RATIO IN AN OPTICAL FILTER
    FALK, JE
    SIAM JOURNAL ON APPLIED MATHEMATICS, 1969, 17 (03) : 582 - &
  • [7] AUTOMATIC DEVICE FOR THE MEASUREMENT OF THE SIGNAL NOISE RATIO
    ARUTYUNOV, VE
    VELIYULIN, EI
    QAJAR, CO
    SALAYEV, EY
    IZVESTIYA AKADEMII NAUK AZERBAIDZHANSKOI SSR SERIYA FIZIKO-TEKHNICHESKIKH I MATEMATICHESKIKH NAUK, 1981, (05): : 92 - 95
  • [8] OPTIMIZATION OF THE LINEAR FILTER INPUT SIGNAL MAXIMIZING THE SIGNAL NOISE RATIO
    POLYAK, BI
    RADIOTEKHNIKA I ELEKTRONIKA, 1982, 27 (10): : 1923 - 1927
  • [9] RANDOM SIGNAL LINEAR FILTER FOR SIGNAL-TO-NOISE RATIO MAXIMIZATION
    KORADO, VA
    BASHIN, GM
    RADIOTEKHNIKA I ELEKTRONIKA, 1972, 17 (09): : 1957 - &
  • [10] EQUIVALENCE OF LIKELIHOOD RATIO PROCESSOR, MAXIMUM SIGNAL-TO-NOISE RATIO FILTER, AND WIENER FILTER
    BROOKS, LW
    REED, IS
    IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 1972, AES8 (05) : 690 - &
12345