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

Authors: Mrachkovskyi, O. D.; Shmakov, O. M.;

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

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.

Рассмотрен метод формирования последовательностей Касами, их свойства. Приведены графики результатов выполнения программы для кода Касами: автокорреляционные функции, сечения по частотному сдвигу, объемные графики функции неопределенности, а также их сечения на разных уровнях. Проанализированные выбросы боковиков АКФ, разрешающие способности по дальности и скорости.

Розглянуто метод формування послідовностей Касамі, їхні властивості. Наведені графіки результатів виконання програми для коду Касамі: автокорреляційні функції, перерізи по частотному зсуву, об’ємні графіки функції невизначеності та їхні перерізи на різних рівнях. Проаналізовані викиди боковиків АКФ, розрізнювальні здатності за дальністю та швидкістю.

Keywords

послідовність Касамі; автокорреляційна функція; функція невизначеності, последовательность Касами; автокорреляционная функция; функция неопределенности, Kasami sequence; autocorrelation function; ambiguity function, 621.396.96

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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