From sound detecting units to weapon locating radars, some models of China's leading radar equipment are on display at the ongoing 11th World Radio Detection and Ranging Expo (World Radar Expo) in Hefei City of east China's Anhui Province.
One of the eye-catching exhibits is a pavilion of sound detecting units, which as a whole looks like a three-layer umbrella. Each sound detecting unit can collect audio signals to help estimate the distance to a low, slow and small target such as a drone.
At the event, a search-and-tracking photoelectric sensor has also captured the attention of many viewers.
Traditional radars have blind spots when detecting targets at low altitudes, which cruise missiles, aircrafts and other combat forces often use to avoid being detected.
Researchers from China Electronic Technology Group Corporation (CETC) have developed a photoelectric sensor, which uses infrared light and visible light, to fill the gap.
"It works by constantly rotating and scanning, to capture 360-degree, low-altitude images of objects. If there is a suspicious target, it will sound an alarm, and then its tracking turntable will lock on and track the target. This model of our radar equipment is designed to identify quadcopter drones within two to three kilometers, and detect them within five to six kilometers," said An Sijing of CETC.
In addition, the CETC presents a state-of-the-art weapon locating radar, which can not only locate the positions of enemy artillery pieces by detecting artillery shells traveling through the air, but also is equipped with air and missile defense capabilities.
"It can carry out early-warning detection of various types of key targets, including cannonball, tactical aircraft, drone-helicopters, within a 360-degree range. Its integrated mechanical, electrical and hydraulic design enables it to fully automatically be installed and withdrawn, and has the ability to adapt to various complex terrains," said Zhou Jianyang of CETC.
The World Radar Expo opened on Saturday and will continue until Monday. The event has been held biennially since 2001.
Latest anti-stealth technologies on display at radar expo in east China city
Latest anti-stealth technologies on display at radar expo in east China city
The Iranian government is focusing on public concerns and maintaining stable supplies of essential goods amid recent protests, Iranian President Masoud Pezeshkian said in a televised interview on Sunday.
In the city of Karaj, northwest of the capital Tehran, daily life has largely continued as normal. A video filmed by a local resident on Sunday shows food stores open and grocery shelves fully stocked.
"This is the block near my home, and there are some food stores here. Daily life continues here. Last night we did not see many protests in Karaj. Right now the city is very safe. This is a grocery store close to my home. All the food is available; nothing is in shortage. Here are noodles and different types of beans. Here are dairy products, cheese, and yogurt. I also checked other grocery stores and didn't see any shortages. Everything is available," said local resident Ali Reza.
Iranian officials have described recent disturbances as acts orchestrated by the "enemy," including some carried out by well-trained and armed "terrorists." The incidents have caused casualties among security personnel and civilians, as well as property damage.
The Secretary of Iran's Supreme National Security Council Ali Larijani has directed authorities to severely punish the "terrorists."
Meanwhile, Iran's police chief Ahmad-Reza Radan said on Sunday that the police had raised alert levels and arrested several leaders of the troublemakers during the operations on Saturday.
President Pezeshkian noted in the interview that the normal demands of the Iranian people are reasonable and justified, but they must realize that triggering riots and carrying out terrorist acts are the enemy's attempts to undermine the country. He urged the public to remain vigilant.
Also on Sunday, Iranian Parliament Speaker Mohammad Baqer Qalibaf warned that Tehran would regard U.S. and Israeli bases and facilities in the Middle East as "legitimate targets" if Washington takes military action against Iran. His remarks followed media reports saying U.S. President Donald Trump is "seriously considering authorizing a strike" against Iran.
Iranian state media reported that at least 109 members of Iran's security forces have been killed in clashes since the protests began 14 days ago. Meanwhile, human rights groups based outside the country said the number of protesters killed has exceeded 200, though the figure could not be independently verified.
The protests initially erupted over a sharp depreciation of the rial and sweeping subsidy reforms. Iranian authorities have blamed the unrest on foreign-linked agents and sanctions imposed by the United States.
Iranian president says government focusing on ensuring supplies amid protests
