Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Victor N. Ushakov"'
Publikováno v:
Известия высших учебных заведений России: Радиоэлектроника, Vol 22, Iss 3, Pp 97-105 (2019)
Introduction. For a homodyne acousto-optic spectrum analyzer functioning a reference optical channel must be organized. The signal in this channel should provide uniform reference illumination throughout the spatial frequency range. In the general ca
Externí odkaz:
https://doaj.org/article/dba4f6686d234844a56c5d6d80c73135
Publikováno v:
2019 International Siberian Conference on Control and Communications (SIBCON).
A simple but accurate method for determining the complex impedance of an arbitrary load is described. This method does not require the use of a vector network analyzer or phase measurement. Two measurements of the reflection coefficient modulus S11 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96e744af913cbefab59131978ae53722
https://doi.org/10.1109/sibcon.2019.8729602
https://doi.org/10.1109/sibcon.2019.8729602
Publikováno v:
2019 International Siberian Conference on Control and Communications (SIBCON).
The LCMV-beamformers are widely used in many applications but to steer array pattern in some direction we need to use phase shifters or additional delay lines for pre-steering. In this paper, we introduce simple constraints in the DOA of the useful s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41092ac63a6d563a0143c441f17c92d6
https://doi.org/10.1109/sibcon.2019.8729604
https://doi.org/10.1109/sibcon.2019.8729604
Autor:
Victor N. Ushakov, Dmitry O. Moskaletz
Publikováno v:
SPIE Proceedings.
Performance analysis for the space-integrating acousto-optic correlator based on optical interference with external noise and allowance for shot noise of photodetector is presented. Signal-to-noise ratio and dynamic range are obtained in the general
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4e0524a093032c4fdbdd463cabcaeaa
https://doi.org/10.1117/12.364550
https://doi.org/10.1117/12.364550
Publikováno v:
SPIE Proceedings.
Acoustooptic matched filter is capable of processing short, wideband chirps. But due to generating process peculiarities, middle frequency, slope and convexity of instant frequency function are fluctuating. To implement electronic tuning of impulse r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e73111d7e5b0c5f58c45806aabcf925
https://doi.org/10.1117/12.364546
https://doi.org/10.1117/12.364546
Autor:
Dmitry O. Moskaletz, Victor N. Ushakov
Publikováno v:
SPIE Proceedings.
The principle of quadrature signal processing was implemented in a space-integrating acousto-optic correlator(SIAOC). A new SIAOC structure for quadrature filtering of phase-shift keyed signals is developed. Performance analysis for this architecture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf8b3d85b0c0be2847d362935a994cd0
https://doi.org/10.1117/12.262678
https://doi.org/10.1117/12.262678
Publikováno v:
SPIE Proceedings.
Time-integrating acousto-optic correlators (TIAOC) provide effective means for spread spectrum signal processing in various applications. Proposed by the authors two- dimensional quadrature radio-frequency TIAOC combines relative simplicity of quadra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7987c3754253cab6dc98c40bd715b0e
https://doi.org/10.1117/12.243139
https://doi.org/10.1117/12.243139
Publikováno v:
SPIE Proceedings.
High-frequency structure of reference mask used in conventional acousto-optic matched filter (AOMF) does not allow adjustment of impulse response by simple means. Two schemes overcoming this limitation are considered in the paper. For one of them exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbfa1f360261b7f14ee8367386ccea0c
https://doi.org/10.1117/12.243116
https://doi.org/10.1117/12.243116
Publikováno v:
SPIE Proceedings.
The principle of quadrature signal processing was implemented in a space-integrating acousto- optic correlator (SIAOC). A new SIAOC structure for quadrature filtering of wideband radio signals was developed. Performance analysis for this architecture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56bf1621f4a6e551b020726cac00726f
https://doi.org/10.1117/12.218526
https://doi.org/10.1117/12.218526
Publikováno v:
SPIE Proceedings.
Statistical aspects of correlative processing of clipped signals obtained as a result of 2-level quantization are considered in this paper. Detection of signals buried in Gaussian noise with uniform power spectral density in limited frequency range a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77323f031795af8849553f8eb6a11549
https://doi.org/10.1117/12.218528
https://doi.org/10.1117/12.218528