Оборудование пассивного обнаружения БПЛА на расстоянии 6
- Категория: Other Security & Protection Products >>>
- Поставщик: Beijing,Shenzhou,Mingda,High,Tech,Co.,Ltd.
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-19-2025 | 0.31 $* | 0.58 $* |
| Aug-19-2025 | 0.73 $* | 0.71 $* |
| Jul-19-2025 | 0.26 $* | 0.62 $* |
| Jun-19-2025 | 0.15 $* | 0.83 $* |
| May-19-2025 | 0.0 $* | 0.60 $* |
| Apr-19-2025 | 0.72 $* | 0.8 $* |
| Mar-19-2025 | 0.43 $* | 0.48 $* |
| Feb-19-2025 | 0.85 $* | 0.58 $* |
| Jan-19-2025 | 0.83 $* | 0.1 $* |
Характеристики
Radio spectrum monitoring distance 6.5KM Anti-drone system
The radio spectrum monitoring system provides long-distance detection of the UAV (effective detection distance ≥ 3km). After the detection data are fused according to the use environment, the RF interference system shields the flight control channel and navigation signal of the UAV and drives away / lands the UAV. Passively intercept the image transmission signal and remote control signal between the UAV and the remote controller to realize the passive detection, lateral, identification and positioning of the UAV.
In practical application, in order to achieve 360 degree omni-directional direction finding, a common method is to use multivariate circular array direction finding. The commonly used direction finding methods are mainly divided into amplitude method and phase method. Amplitude comparison direction finding method is the most commonly used one in amplitude direction finding system. It has the advantages of mature technology, low difficulty, wide instantaneous band width, high interception probability, not affected by frequency measurement and low cost. However, due to the difficulty of accurate analytical expression of the amplitude pattern characteristics of antennas and the difficulty of realizing the amplitude consistency of different antennas, it is difficult to achieve high accuracy of amplitude comparison direction finding. Correlation interferometer direction finding method is one of the most commonly used methods in phase direction finding system. It has the advantages of simple algorithm, high direction finding accuracy, high sensitivity, good real-time performance and various antenna arrays. However, its direction finding accuracy and phase ambiguity have conflicting requirements for baseline length. In order to obtain high accuracy, it is necessary to increase the baseline length, When the baseline length exceeds half of the wavelength, it will cause phase ambiguity, and the longer the baseline, the more serious the phase ambiguity.
In order to realize the high-precision direction finding of multi-element circular array, the system plans to adopt a circular array correlation interferometer defuzzification method based on amplitude comparison direction finding, roughly measure the angle through the correlation amplitude comparison direction finding method, defuzzify the phase difference, obtain the unambiguous phase difference, and then realize the high-precision direction finding through the correlation interferometer.
In practical application, in order to achieve 360 degree omni-directional direction finding, a common method is to use multivariate circular array direction finding. The commonly used direction finding methods are mainly divided into amplitude method and phase method. Amplitude comparison direction finding method is the most commonly used one in amplitude direction finding system. It has the advantages of mature technology, low difficulty, wide instantaneous band width, high interception probability, not affected by frequency measurement and low cost. However, due to the difficulty of accurate analytical expression of the amplitude pattern characteristics of antennas and the difficulty of realizing the amplitude consistency of different antennas, it is difficult to achieve high accuracy of amplitude comparison direction finding. Correlation interferometer direction finding method is one of the most commonly used methods in phase direction finding system. It has the advantages of simple algorithm, high direction finding accuracy, high sensitivity, good real-time performance and various antenna arrays. However, its direction finding accuracy and phase ambiguity have conflicting requirements for baseline length. In order to obtain high accuracy, it is necessary to increase the baseline length, When the baseline length exceeds half of the wavelength, it will cause phase ambiguity, and the longer the baseline, the more serious the phase ambiguity.
In order to realize the high-precision direction finding of multi-element circular array, the system plans to adopt a circular array correlation interferometer defuzzification method based on amplitude comparison direction finding, roughly measure the angle through the correlation amplitude comparison direction finding method, defuzzify the phase difference, obtain the unambiguous phase difference, and then realize the high-precision direction finding through the correlation interferometer.
