Analysis of autocorrelation and ambiguity function of complicated radiolocation signal with binary phase manipulation by Kasami sequence

Authors

  • O. D. Mrachkovskyi National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
  • O. M. Shmakov National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

DOI:

https://doi.org/10.20535/RADAP.2015.62.70-76

Keywords:

Kasami sequence, autocorrelation function, ambiguity function

Abstract

Introduction. Were reviewed publications dedicated to pseudorandom sequences in radiolocation, and was made conclusion about necessity of researching in this subject.
Modeling of probing radiolocation signal with binary phase manipulation by Kasami sequence. Were considered the method of forming Kasami sequences and measuring their properties. Example of generator for sequence with length 63 symbols is also shown.
Technique of research. Were shown graphical results for modeling of Kasami sequence with lengths of 255 binary values. Amplitude of side maximums of autocorrelation function are measured.
Modeling of ambiguity function. In this article, graphical results for modeling Kasami sequence ambiguity function are shown. These includes 3-dimensional plot of function body and its cross-sections by plane of equal ranges and planes of function level, equal to 0.9, 0.7, 0.5, 0.4, 0.3, 0.2 and 0.1 of its maximum. Were analyzed amplitude of side maximums, cross-section form and relative values of range and speed resolution.
Conclusion. These articles contain analyses of characteristics of previously shown plots. These analyses include estimation of total value of side maximums of ambiguity function of Kasami sequence, ambiguity function cross-section form analysis and conclusion about ability of using these sequences as probe signal in radiolocation.

Author Biographies

O. D. Mrachkovskyi, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

Mrachkovskyi O.D.

O. M. Shmakov, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

Shmakov O.M.

References

Перелік посилань

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Kasami, T. (1966) Weight distribution formula for some class of cyclic codes, Tech. Report No. R-285, Univ. of Illinois.

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Published

2015-09-30

How to Cite

Мрачковский, О. and Шмаков, О. (2015) “Analysis of autocorrelation and ambiguity function of complicated radiolocation signal with binary phase manipulation by Kasami sequence”, Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, 0(62), pp. 70-76. doi: 10.20535/RADAP.2015.62.70-76.

Issue

No. 62 (2015)

Section

Telecommunication, navigation, radar systems, radiooptics and electroacoustics

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