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Defects of previous application in UAV interference industry

Defects of previous application in UAV interference industry

  • 2019/12/30
UAV jammer
Defects in previous applications:
1. All use low transmitting power: although it is small in size, the transmitting power is also small and the coverage area is not large, generally no more than 1km; in actual combat, the prevention of UAV should be at least 1km away. If the UAV has entered 1km, its damage or terrorism related behaviors are often completed.
2. All use directional antenna: the premise of using directional antenna is that the direction and position of UAV have been determined in advance, which is extremely unrealistic in the real war! Specific reasons:
(1) In actual combat, UAVs should first be kept away from the protection area, and those who break through occasionally can be found. It is too late to use directional jamming until they are found;
(2) The use of directional antenna is based on the premise that the UAV must be visible. In actual combat, the UAV cannot be seen when the height distance is more than 4500 meters. When approaching at low altitude, the blocking of trees, buildings, billboards and other objects will hinder the vision;
(3) The scene of UAV protection site is not always sunny. It needs to be considered that the UAV's discoverable distance will be very short in cloudy, haze or night;
(4) For the interference of directional antenna, the on duty personnel should always look at the sky and near earth space, but the human visual field (where the eyes can see clearly) is limited, and the time is a little longer, there will be visual fatigue;
(5) There is no agreement that there will be only one UAV engaged in sabotage or terrorism in a period of time. If multiple UAVs attack from multiple directions, the equipment of directional antenna will lose one or the other;

The goal of anti UAV:
1. Protect the UAV outside the site from entering;
2. The UAV in the protection site cannot take off;
3. Combined with the use of UAV jamming equipment, capture UAV;

Correct process of anti UAV:
1. The UAV shall not be allowed to enter the central area of the protection site (within the visible range);
2. The UAVs with occasional penetration are forced to interfere, land and capture;

Correct application mode of anti UAV:
1. Adopt high power signal transmission: the coverage radius shall be at least 1km;
2. Adopt omnidirectional antenna to transmit: the interference signal for UAV shall be centered on the protection site, and UAV cannot enter within 1km of the square circle at least;
3. Interference signals of some frequency bands are continuously transmitted, such as GPS guidance signals (the protection site is clearly marked as no fly zone). Some jamming signals are selectively transmitted, such as GPS / Beidou / Galileo / GLONASS navigation signal, wireless map signal, UAV flight control frequency band signal, etc;

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