Method for discriminator curve synthesis of angular systems of multi-channel radars
In radar systems angle information about an object is obtained by discriminator, the basic properties of which are determined by the discriminator curve. Its main parameters are the conversion factor and the width. Currently, these parameters remain unguided during the tracking process. At the same...
| Main Authors: | , |
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| Format: | Article |
| Language: | Russian |
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The United Institute of Informatics Problems of the National Academy of Sciences of Belarus
2019-09-01
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| Series: | Informatika |
| Subjects: | |
| Online Access: | https://inf.grid.by/jour/article/view/631 |
| _version_ | 1797877229064028160 |
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| author | V. M. Artemiev A. O. Naumov |
| author_facet | V. M. Artemiev A. O. Naumov |
| author_sort | V. M. Artemiev |
| collection | DOAJ |
| description | In radar systems angle information about an object is obtained by discriminator, the basic properties of which are determined by the discriminator curve. Its main parameters are the conversion factor and the width. Currently, these parameters remain unguided during the tracking process. At the same time, when changing modes or conditions of operation, it is desirable to control these parameters, which is possible in multipath radars. In multipath radar the discriminator curve is formed by simultaneous weight summing of the signals at the receiving channels outputs. The objective of the study was to develop a method for finding the values of optimal weight coefficients for obtaining the desired parameters of the discriminator curve with an instantaneous amplitude comparison of signals. As an optimality criterion, we used the condition of minimizing of noise variance at the discriminator output, taking into account linear constraints on its characteristics parameters. The solution is carried out by method of Lagrange multipliers. Two options of the discriminator curve synthesis are considered: for additive and multiplicative discriminators. Expressions for optimal weight coefficients are obtained in general term. The proposed method allows to find the desired parameters of discriminator curves, in particular, it is possible to form its zero values in angular directions to suppress the influence of external noise. |
| first_indexed | 2024-04-10T02:13:47Z |
| format | Article |
| id | doaj.art-460d25e9fc494950bfb5c81d8e54f2d0 |
| institution | Directory Open Access Journal |
| issn | 1816-0301 |
| language | Russian |
| last_indexed | 2024-04-10T02:13:47Z |
| publishDate | 2019-09-01 |
| publisher | The United Institute of Informatics Problems of the National Academy of Sciences of Belarus |
| record_format | Article |
| series | Informatika |
| spelling | doaj.art-460d25e9fc494950bfb5c81d8e54f2d02023-03-13T08:32:24ZrusThe United Institute of Informatics Problems of the National Academy of Sciences of BelarusInformatika1816-03012019-09-011635968836Method for discriminator curve synthesis of angular systems of multi-channel radarsV. M. Artemiev0A. O. Naumov1Institute of Applied Physics of the National Academy of Sciences of BelarusInstitute of Applied Physics of the National Academy of Sciences of BelarusIn radar systems angle information about an object is obtained by discriminator, the basic properties of which are determined by the discriminator curve. Its main parameters are the conversion factor and the width. Currently, these parameters remain unguided during the tracking process. At the same time, when changing modes or conditions of operation, it is desirable to control these parameters, which is possible in multipath radars. In multipath radar the discriminator curve is formed by simultaneous weight summing of the signals at the receiving channels outputs. The objective of the study was to develop a method for finding the values of optimal weight coefficients for obtaining the desired parameters of the discriminator curve with an instantaneous amplitude comparison of signals. As an optimality criterion, we used the condition of minimizing of noise variance at the discriminator output, taking into account linear constraints on its characteristics parameters. The solution is carried out by method of Lagrange multipliers. Two options of the discriminator curve synthesis are considered: for additive and multiplicative discriminators. Expressions for optimal weight coefficients are obtained in general term. The proposed method allows to find the desired parameters of discriminator curves, in particular, it is possible to form its zero values in angular directions to suppress the influence of external noise.https://inf.grid.by/jour/article/view/631multi-channel radarsantenna beam patterndiscriminator curvemethod of lagrange multipliersweight coefficients |
| spellingShingle | V. M. Artemiev A. O. Naumov Method for discriminator curve synthesis of angular systems of multi-channel radars Informatika multi-channel radars antenna beam pattern discriminator curve method of lagrange multipliers weight coefficients |
| title | Method for discriminator curve synthesis of angular systems of multi-channel radars |
| title_full | Method for discriminator curve synthesis of angular systems of multi-channel radars |
| title_fullStr | Method for discriminator curve synthesis of angular systems of multi-channel radars |
| title_full_unstemmed | Method for discriminator curve synthesis of angular systems of multi-channel radars |
| title_short | Method for discriminator curve synthesis of angular systems of multi-channel radars |
| title_sort | method for discriminator curve synthesis of angular systems of multi channel radars |
| topic | multi-channel radars antenna beam pattern discriminator curve method of lagrange multipliers weight coefficients |
| url | https://inf.grid.by/jour/article/view/631 |
| work_keys_str_mv | AT vmartemiev methodfordiscriminatorcurvesynthesisofangularsystemsofmultichannelradars AT aonaumov methodfordiscriminatorcurvesynthesisofangularsystemsofmultichannelradars |