Analysis of Range Measurement  Method of Conical Scanning  in Conditions of Boresight   Angle Stepping

Pavlov, Vladislav; Блудов, А. А.; Balashov, E. V.

doi:10.21778/2413-9599-2017-1-37-43

Cited by 3 publications

(2 citation statements)

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“…Рассмотрим пеленгационный метод сравнения при коническом сканировании. Реализация данного метода на основе одноканального приемо-передающего тракта возможна при формировании пары диаграмм направленности за счет собственного вращения и применения специально оптимизированной ДНА, обеспечивающей возможность формирования разностной диаграммы при повороте на 180° по крену [3].…”

Section: влияние угловых эволюций на работу метода сравнения при кониunclassified

“…В условиях, когда угловые эволюции отсутствуют или их частота существенно меньше частоты вращения по крену, это действительно так. В случае когда частоты угловых эволюций и вращения по крену сопоставимы, необходимо рассматривать суперпозицию двух процессов: угловых колебаний, которые приводят к изменению положения РСН, и собственного вращения, которое приводит к вращению ДНА относительно РСН [3].…”

Section: влияние угловых эволюций на работу метода сравнения при кониunclassified

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Analysis of Influence of Angular Changes of Radar Coordinator for Direction-Finding Accuracy

Balashov

2020

Voprosy radioèlektroniki

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Section: влияние угловых эволюций на работу метода сравнения при кониunclassified

Analysis of Influence of Angular Changes of Radar Coordinator for Direction-Finding Accuracy

Balashov

2020

Voprosy radioèlektroniki

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Two-Scale Modification of Conical Scanning Direction Finding Method

Блудов

Горбатовский

Pavlov

2019

Voprosy radioèlektroniki

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The paper considers a generalized case of conical scanning method, in which the cross‑section of the antenna beam has an elliptical shape. Such feature of the antenna beam shape leads to the occurrence of additional information contained in the received signal. It is shown that by utilizing this information it is possible to form an estimate of the direction to object at large off‑center angles. A modification of the conical scanning method is proposed that combines the estimates of object’s angular position, obtained via standard computational procedure (main scale) and additional procedure for angle estimation based on the additional direction‑finding information contained in the received radar signal envelope (additional scale). The technical result of the introduced two‑scale modification of the conical scanning method consists in a significant expansion of the operational area of direction finding compared to the original method.

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Quality of Radar Direction-Finding via Conical Scanning

Pluzhnikov

Kogteva

Pribludova

et al. 2021

Izv. vysš. učebn. zaved. Ross., Radioèlektron.

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Introduction. Conical scanning is applied for optimizing hardware resources in new devices, as well as when upgrading existing systems. All this explains the relevance of studying this type of direction finding systems.Aim. To adjust and complement the known calculation relations for the variance of direction finding results – an indicator of the quality (accuracy) of direction finding, as well as to determine the possibilities of optimizing direction finding and automatic object tracking processes.Materials and methods. Factors limiting the accuracy of direction finding via conical scanning were analyzed using spectral analysis. Mathematical modeling followed by statistical processing of quantitative results makes it possible to determine the conditions under which the influence of certain factors is predominant, as well as the conditions under which adjustment (completion) of the known calculation relations is required. The specified conditions are the errors at which the objects of direction finding are tracked. New calculation relations for the mentioned adjustment were determined by the methods of statistical radio engineering.Results. The validity of the calculation relations found is confirmed by mathematical modeling. Calculations and modeling lead to the need to optimize parameters for automatic object tracking systems.Conclusion. The study shows that, when choosing parameters for auto-tracking systems with conical scanning, it is important to implement object tracking not with minimal, but rather with optimized tracking errors in angular coordinates, which are to be estimated during direction finding. Moreover, the optimized errors (the values of static errors and the most probable values of the dynamic tracking errors) will require adjustment of the known analytical estimates for the variance of the direction finding results – the qualitative indicator of the direction finder (accuracy indicator). The determined analytical relationships allow such an adjustment to be performed, leading to an increased variance estimate by 10 dB.

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Analysis of Range Measurement Method of Conical Scanning in Conditions of Boresight Angle Stepping

Cited by 3 publications

References 0 publications

Analysis of Influence of Angular Changes of Radar Coordinator for Direction-Finding Accuracy

Analysis of Influence of Angular Changes of Radar Coordinator for Direction-Finding Accuracy

Two-Scale Modification of Conical Scanning Direction Finding Method

Quality of Radar Direction-Finding via Conical Scanning

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