Which one is the most advanced drone in the United States?

Northrop Grumman's RQ-4A Global Hawk is the most advanced UAV in the US Air Force and around the world. The Global Hawk program, which includes two components, Global Hawk and Dark Star, was launched in 1995 as part of the Advanced Proof of Concept (ACTD) program for High Altitude Persistence. The fuselage of the "Global Hawk" is meters long, meters high, with a wingspan of meters, and a maximum take-off weight of 11,622 kilograms.

The wingspan is similar to that of the Boeing 747, so the Global Hawk is a huge drone. With more than 7 tons of fuel on board, a maximum range of 25,945 kilometers and an autonomous flight time of up to 41 hours, the Global Hawk can complete transcontinental flights. It can operate at a distance of 5,556 kilometers from the launch area and stay at a height of 18,288 meters above the target area for 24 hours.

The flight control system uses GPS global positioning system and inertial navigation system, which can automatically complete the entire flight process from take-off to landing. The RQ-4A reached an altitude of 19,850 meters during flight tests conducted in April 2001 and broke the mission flight record for the number of hours of endurance of a jet-powered drone. This record was once the world record held by the Compass Cope-R drone for 26 years.

The Global Hawk can carry both optoelectronic and infrared sensing systems and synthetic aperture radar. Photoelectric sensors operate in the micron band, and infrared sensors operate in the 5 micron band. The optoelectronic system consists of a third-generation infrared sensor and a Kodak digital electrically coupled device (CCD).

The synthetic aperture radar has an X-band, 600MHz, kilowatt-peak active target designator. The radar can obtain banner reconnaissance** with an accuracy of 1 meter, and fixed-point reconnaissance** can be accurate to the meter. For ground moving targets traveling at 20 to 200 kilometers per hour, it can be accurate to 7 kilometers.

During a mission flight, the "Global Hawk" can not only conduct a large-range radar search, but also provide photoelectric infrared images within a range of 10,000 square kilometers, and the probability of circular error in target positioning can be as small as 20 meters. Synthetic aperture radar equipped with meter-diameter antennas can penetrate obstacles such as clouds and rain, and can continuously monitor moving targets. The more advanced advantage of the Global Hawk is that it can be linked to the existing Joint Deployment Intelligent Support System (JDISS) and Global Command and Control System (GCCS), and the images can be directly and real-time transmitted to the commander for target indication, early warning, rapid attack and re-attack, and combat evaluation.

The RQ-4A can also be adapted to different communication control systems of the Army, Navy and Air Force. It can carry out both broadband satellite communication and line-of-sight data transmission communication. Broadband communication systems can reach a transmission rate of 274MB seconds, but they are not currently supported.

The satellite communication system in the Ku-band can reach 50MB seconds. In addition, there is a backup data link on board. Each Global Hawk costs about $51 million.

Since the US Air Force is preparing to purchase another 66 aircraft, the unit price is expected to drop to about $20 million.

It was a Global Hawk before, but recently it flew an X-47B

Next, press ** to say:

1. LC1860C five-mode mobile CPU: It uses ARM's Corterx-A7 CPU architecture, and cannot be used in the future.

2. ATSAME70Q21 flight controller main control CPU: using ARM's Cortex M7 CPU architecture, it cannot be used in the future.

3, STM32F303 ** Handling CPU: Using ARM's Cortex-M4 CPU architecture, it cannot be used in the future. ,4,MA2155 vision processing chip: using Intel in the United States, it cannot be used in the future.

5. Image processor solution chip: using Ambarella in the United States, it cannot be used in the future.

6, AR1021X dual-band wifi chip: Qualcomm from the United States.

It cannot be used in the future. ,7,MP6536 PTZ control chip: Use the core source of the United States, and it cannot be used in the future.

8. MPU-6050 gyroscope.

Chip : Invensense in the United States, which cannot be used in the future.

9. OPT3101 obstacle avoidance sensor module: using TI in the United States, it cannot be used in the future.

10, flying propellers.

Motor drive chip: Using Active-Semi in the United States, it cannot be used in the future.

11. Power amplifier chip and filter chip: use Qorvo in the United States, which cannot be used in the future.

12. Asymmetric AlphaMOS chip: using American Alpha & Omega, it cannot be used in the future.

13, u-blox navigation chip: the export must use the United States GPS, the domestic use of Beidou.

14. LC1160 power management chip.

Use China's Lianxin company and continue to use it.

15,71A98 JWB30 memory chip.

Use Taiwan.

of wisdom.

The United States is a world leader in drone technology.

At present, the most advanced UAV technology in the world is the United States, Israel and Europe, which are in the first echelon, while China, Russia, etc. are in the second echelon.

In the past decade, China has successively developed various types of cutting-edge drones, and now has all types of cutting-edge drones in the United States, and the catch-up momentum is strong. The level of technology determines the market share, so the market for UAVs is mainly concentrated in the United States, China, and Europe.

Tips for using drones:

Before the drone takes off, be sure to refresh the home point and set the appropriate return height. In the first 10 flights when you just get the plane, you need to find an open and safe place to practice, including the most basic four-sided flight field wide loss and figure-eight flight.

After mastering both FPV and map flight modes, you can be considered a qualified pilot. When flying and flying sideways, you must observe your surroundings first, especially when you are going up or down at the same time.

If you want to take aerial photos around the building, the aircraft must be higher than the building, and the remote controller needs to be far enough away from the building to be safer. Before taking aerial photographs of tall buildings, you should check the height of the building so that you can set the return height. <>

The top 10 drones in the world are as follows:1. RQ-4A Global Hawk UAV

2. X-47B UAV.

3. Falcon hypersonic vehicle.

4. British "God of Thunder" UAV.

5. French "Neuron" unmanned stealth attack aircraft.

6. Predator "drone."

7. RQ-7 shadow drone.

8. Harpy drone.

9. Heron drone.

10. RQ-8 fire scout UAV.

Uses of UAVs in the civilian sector:

1) Aerial photography.

With the rapid development of civilian drones, drones are increasingly appearing in advertising, film and television, wedding records, etc. More than two-thirds of the footage of the documentary "Flying Over Shanxi" was taken by aerial photography, and many shots were taken by drones.

2) Power inspection.

On April 9, 2015, the transmission and operation inspection office of Jinan Power Supply Company and Shandong Electric Power Research Institute carried out drone inspection work on the four-base cross-Yellow River tower. Unmanned aerial vehicle (UAV) patrol has the advantages of no height limitation, flexible patrol, convenient photography and comprehensive angle, which is especially suitable for the patrol of large spanning towers, making up for the shortcomings of manual patrol.

3) News coverage.

CNN has received a license from the Federal Aviation Administration (FAA) to test drones equipped with cameras for news reporting. As early as 2013, during the Lushan ** earthquake relief, CCTV News used a drone independently developed by Shenzhen Yidian Technology to shoot aerial photography of the disaster area**.