Study of the effects of signal filtering on acousto-optic correlator performance

被引：2
|
作者：
Bazzi, Oussama [1 ]
Gazalet, Marc G.
Mohanna, Yasser
Alaeddine, Ali
Hafiz, Ali
机构：
[1] Lebanese Univ, Fac Sci, Dept Phys & Electron, Beirut, Lebanon
[2] Univ Valenciennes, IEMN, UMR 8520, CNRS,Dept OAE, F-59313 Valenciennes, France
来源：
OPTICAL ENGINEERING | 2006年 / 45卷 / 12期
关键词：
acousto-optics; correlation; filtering; signal-to-noise ratio;
D O I：
10.1117/1.2404675
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The performance of acousto-optic correlators (AOC) in spread-spectrum receivers is considered. The received pseudorandom sequences are correlated with reference ones in an acousto-optic cell. In particular, the effects of receiver filtering on the AOC processing gain are analyzed in the presence of additive white Gaussian noise (AWGN). The signal processing method is presented. For ideal AOCs, simple analytical expressions are derived for two different types of receiver filters: ideal and RC first-order filters. The results are given in terms of the ratio beta of the code rate to the filter bandwidth. They show approximate processing gain losses of 4 dB for the first type and 1 dB for the second type for beta = 5. For real AOCs, the results are obtained from numerical simulation. (c) 2006 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页数：7
相关论文
共 50 条
  • [1] Effects of acousto-optic correlator bandwidth on coded pulse compression
    Bazzi, O
    Gazalet, MG
    Rouvaen, JM
    Bruneel, C
    OPTICAL ENGINEERING, 1996, 35 (06) : 1656 - 1661
  • [2] Radio interference impact on acousto-optic correlator performance
    Sergienko, AB
    Ushakov, VN
    ADVANCES IN OPTICAL INFORMATION PROCESSING VII, 1996, 2754 : 300 - 310
  • [3] Statistical study of an acousto-optic correlator in terms of its bandwidth
    Menhaj-Rivenq, A
    Assaad, J
    Bazzi, O
    Haine, F
    OPTICAL ENGINEERING, 1998, 37 (03) : 955 - 960
  • [4] Statistical characteristics of acousto-optic correlator based on optical interference
    Moskaletz, DO
    Ushakov, VN
    3RD INTERNATIONAL CONFERENCE ON OPTICAL INFORMATION PROCESSING, 1999, 3900 : 253 - 262
  • [5] Lensless spatial filtering using acousto-optic modulators
    Banerjee, PP
    Poon, TC
    ACOUSTO-OPTICS AND APPLICATIONS III, 1998, 3581 : 48 - 57
  • [6] Optimization of the acousto-optic signal detection in cylindrical geometry
    Gunadi, Sonny
    Powell, Samuel
    Elwell, Clare E.
    Leung, Terence S.
    PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2010, 2010, 7564
  • [7] Acousto-optic k-space Filtering of Optical Beams
    Yushkov, Konstantin B.
    PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON PHOTONICS, OPTICS AND LASER TECHNOLOGY (PHOTOPTICS), 2021, : 69 - 75
  • [8] Acousto-optic polarizer
    Gondek, G
    Kwiek, P
    ULTRASONICS, 2002, 40 (09) : 967 - 971
  • [9] Performance analysis of acousto-optic digital signal processors using the describing function approach
    Ghosh, AK
    Sonakiya, S
    IETE JOURNAL OF RESEARCH, 1998, 44 (1-2) : 3 - 12
  • [10] Effects of raised-cosine pulse shaping on processing gain in acousto-optic correlators
    Bazzi, O.
    Mohanna, Y.
    Khalil, F.
    Assaad, J.
    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2008, 50 (06) : 1558 - 1561
12345