AR500 Border Security Surveillance and Radar Warning
Security surveillance is the vital part of the national security.In recent years, with the development of the economy and the continuous improvement of the comprehensive national strength, China's international status has been kept rising, but the international and domestic social contradictions have become increasingly prominent and the global anti-terrorism situation remains severe. Since the traditional photoelectric video monitoring system only covers a small view field, it is necessary to limit the surveillance range or reduce the data update rate, and thus the border forces are responding faster and faster.
On the basis ofthe primary principle of "forbidding anyone from leaving or entering arbitrarily”, we have further strengthened the early warning and surveillance system on the borders, increased the warning scope and improved the electronic on-duty informatization capacity in such key areas as watch houses and territorial boundaries. The early warning system consisting of radar and photoelectric technology will effectively extend the warning range, give solution to many problems includingearly warning and promptresponse, andeffectively promote the prevention ability and the emergency disposal capability.
This product is capable of battlefield reconnaissance
- Finding the moving target on the ground or at sea;
- Determining the coordinate position of the target detected ;
- Displays of PPI, B-Disp image and digital map
As a kind of high-tech equipment which employs electromagnetic wave signal to detect the moving targets, Radar is a kind of active all-weather warning detection means. It can warn by detectingany people and vehicles in the specified areas, and give warnings according to their intention.The system has the following characteristics:
- Itcould monitor human, vehicles and large animals;
- It couldautomatically guide and control the infrared and photoelectric devices to compose a linkage system, which will not only provide 24-hour continuous warning and monitoringin the assigned area, and also fulfill the function of target recognition and management;
- The systemwill automatically track,identify the threat level and give an alarm. It is also compatible with manual intervention mode;
- With the hierarchical network structure, the command control center at the upper level can observe and govern the comprehensive information in the whole region, and form a security situation map of the whole region.
- With corresponding data storage and playback functions at all levels, this system could storethe targets’ movement track or state information for post review and verification;
- With self-checking function, the system couldtest and monitorthe health condition of devices in the system. A prompt will be given in the case of any equipment failures. If the malfunctioning equipment is the network center, the system will automatically generate a new network center to ensure the system reliability.
The radar warning system is an intelligent networked monitoring system composed of multi-level network structure. Its network can be expanded freely as needed. The front end of the network is the radar sensors. The data from several radar sensors are gathered at the processing and control center, which is the first level of the network. The processing and control center will process and comprehensively analyze the data from all the sensors on the first level to generate station-level comprehensive information. This center will report the summarized information to its superior command and control center, the county command and control center, for instance, who could report the overall condition to its superior command and control center, such as the district command and control center, if necessary. Then the district command and control center will analyze the summarized information from the county center and then form a comprehensive warning situation map of the whole region.
In the whole system, the radar sensor is the source of the information and at the front end of the network. As the center of sensor data processing, photoelectric fusion processing and control, the processing and control center will automatically process all sensor data, generate radar warning information, and automatically guide the photoelectric equipment to grab the target videos and images. The follow-up command and control centers will separately summarize the information gathered from respective governed regions and form an overall situation map of the region, so as to provide the commander with real-time situation information for decision-making.
Except the specialized radar, the hardware of the processing and control center can be constructed with general industrial computer, as all the functions could be realized by installing the software related to sensor data processing, photoelectric fusion processing and control in the computer. The general industrial computer may also be adopted for the hardware equipment of the command and control centers at all levels, if the computer is installed with the corresponding comprehensive situation analysis software to realize its functions. The list of system components, as shown in below table, exclude photoelectric equipment, industrial computers, communication equipment and other equipment that are not part of the radar warning system.
|No.||Name of Component or Software||Major Function|
|1.||Radar sensor||Information source, providing data to protect the target information|
|2.||Data processing software||To process the data from information source and output the target trace information|
|3.||Radar photoelectric fusion processing and control software||To guide the photoelectric equipment to grab the target videos and images, combine radar and photoelectric information, and form radar warning information|
|4.||Comprehensive situation analysis software||To summarize the warning information and form an overall situation map|
- With multi-task ability, it can track while detecting;
- It can effectively counter human’s intentional elusion;
- With high data rate, it could discover target more immediately;
- Without mechanical transmission components, it is very reliable.
Combination of Radar and Photoelectronics
The combination of radar and optoelectronic equipment enables the automatic processing, from early warning to recognition, which will greatly reduce labor intensity of the soldiers on duty.
The radar detects the targets in the mission area ceaselessly from day to night and gets preliminary threat recognition based on the target's movement behavior. The radar will continuously detect and track the unthreatening targets and regularly evaluate the threat level. If the target is with potential threats, the radar will immediately guide the photoelectric equipment to aim at the target, adjust the focal length of the photoelectric equipment according to the distance from the target, maintain photoelectric equipment irradiate and track the targets in a certain period of time, in order to obtain the clear video images of the targets. The photoelectric equipment delivers the obtained video information to the processing and control center, where the video processing software will carry on precise recognition. After successful recognition, the radar will release the photoelectric equipment. But if the recognition is not fulfilled within the time limit, the system will prompt a request for artificial identification, and the operator will decide whether or not to continue guiding and controlling the photoelectric equipment. After the recognition is fulfilled, the obtained target properties, such as type, quantity and so forth, will be sent to the fusion processing software, which will combine the radar and photoelectric information to judge the threat level and give appropriate warning signals.
System radar operating principle
The radar mainly targets the Doppler shift of the target, and the target is up to 180 kilometers per hour. Such as buildings, trees, or the terrain effects on vision and limits, need to use more than one radar networking, each view blind area, the formation of target motion trajectory in a row, all the radar target track plotting on the GIS map, presents an intuitive state information display.
The radar adopts the phase correlation and continuous wave system, combined with the unique algorithm, greatly improves the noise suppression ability and the detection ability of low speed small target. Through the target analysis, filter the jamming signal, improve the target accuracy and reduce the target error rate. While ensuring that small target detection capability is ensured, the emission power will be lowered to the lowest level, which will not be harmful to the human body.
AR-500 solid coherent Doppler radar coverage is in front to the ±45°covered with electronic scan quadrant area, about 3 million square meters surveillance area by single radar. The target detection maximum range is, the pedestrian 800 meters, the Car 1200 meters, the large vehicle 2000 meters.
Technical Index of the Radar
Aviation connector type: Y50P-1412ZJ10L2; mating connector: Y50P-1412TK1L2-12.5
|Radar model: AR500|
|Specification||Technical index parameters|
|Max. detection range||Type A:human: 2000m, vehicle: 3000m|
|Type B:human:3000m, vehicle: 5000m|
|Type C:human:5000m, vehicle:7000m|
|Max. effective detection range
(detection probability: 90%, false alarm probability: 1×10¯6)
|Human (RCS=0.5m²) ≥2.5km
Vehicle (RCS=10m²) ≥5km
|Radial detecting speed||≤288km/h|
|Short-distance Blind Section||≤150m|
|false alarm probability||Max. once a day|
|Angle range of horizontal monitoring||±450|
|Angle range of vertical monitoring||±90|
|Max. detection range||7.5Km|
|Antenna scanning mode||electric scanning|
|Range measurement accuracy||10m|
|Speed measurement precision||0.1m/s|
|Max. tracking objects||300|
|System power supply||DC (+12V) /AC (220V)|
|Weight||Type A: ≤2.5Kg;
Type B: ≤4Kg;
Type C: <10Kg
|Environmental suitability||Working temperature||-40～+550|
|Environmental humidity||98% (300C)|
|Wind loading rating||resistant to typhoon below category 14|
|With protection measures against rain, dust and sand;|
|With protection measures against moisture, salt fog, mildew, etc.|
Photoelectric Technical Index
As the general video sensors could be used as the photoelectric part, the following sensors are recommended for this system:
The photoelectric system may be assembled according to the user's requirements. The technical indicators are as follows (compatible with the yuntai control of Hiklife/Dahua/Uniview):
|Visible light cameras||Sensor size||1/28 inch||1/28 inch||1/4,1/3,1/28 inch|
|Lens||Optical 20x/30x zoom(optional)||Optical 20x/30x zoom||Optical 20x/30x/38x zoom|
|Thermal infrared imager||Detector||(uncooled)
|Lens||9mm,13m, 25mm,35mm||9m, 13mm, 25mm,35mm||35mm, 50mm,70mm|
|Stable platform||stability precision||≤1mrad||≤1mrad||≤0.3mrad|
|Search scope||Orientation: N*360°||Orientation: N*360°||Orientation: N*360°|
|Pitching: -90°～30°||Pitching: -90°～30°||Pitching: -90°～30°|
This highly integrated system adopts multi-mode compound system, incorporating radar, infrared and visible light devices, and integrating functions such as searching warning, infrared and visible light monitoring and identification, etc.
Through multi-screen monitoring for infrared video, visible light video, radar track and other information, the operations such as system monitoring, manual tracking and investigation could be completed by only one person.
This system consists of radar, infrared and visible light detections. The radar can detectno less than 100 targets at the same time. By detecting with infrared and visible light measure, it is possible to automatically track and obtain evidence of multiple targets in the covered area. The system has good capability of data fusion;
This highly integrated system can automatically monitor and record without operators, which mean it can upload real-time information, includinginfrared/visible light videos and radar track, to the command center. The operator can also intervene in the command center and remotely operate the monitoring platform.
Deployment Scheme of Radar Sensors
To improve the overall costperformance and practicability of the radar warning system, it is necessary to configurea variety of radar sensors with different specifications and optimize the configuration according to the actual terrain conditions. Based on the specific deployment scheme of the barracks, we mainly provide 90°, 180°, 270°and 360° scanning justcustomized as per users’ requirements, detecting the humanwithin the distance of 1500 meters and the vehicles within the distance of 3000 meters,.
- L401 (1 primary radar) to achieve 90° electric scanning;
- L421 (1 primary radar /1 secondary radar) to achieve 180°electric scanning;
- L431 (1 primary radar /2 secondary radars) to achieve 270°electric scanning;
- L441 (1 primary radar /3 secondary radars) to achieve 360°electric scanning;
Preliminary configuration scheme for various terrain conditions
|No.||Terrain||Max.wavy depth||Configuration scheme|
|1||Plain and deserts||Less than 2 meters||To mount radars of 9km detection range,at a height of 10m.|
|2||Hills and sand dunes||Less than 50 meters||To mount two sorts of radars, one is of 3km detection range and the other is of 1km, the former should be mounted high enough at the highest point of the mission area, and as complementary, the latter will be deployed nearby the coves where the former radar cannot detect directly.|
Typical Application Cases of Phased Array Radar
Our phased array radar has been deployed in various and complex environments, especially in those areas with extremely complicated climate conditions, such as the border areas and the submarine cable protection zones.