Successful Test, China Achieves First Independent and Exclusive Satellite-Ground Laser High-Speed Image Transmission.
Recently, a technology company in Jilin Province utilized a self-developed vehicle-mounted laser communication ground station to conduct a high-speed image transmission test with the MF02A04 laser terminal on the "Jilin-1" satellite constellation,
achieving unprecedented success. This marks China's first independent and exclusive operational application of laser high-speed image transmission between satellite and ground.
Starting from March 2020, the research team in Jilin Province embarked on comprehensive research and development efforts for this experiment. After over three years of development, the current laser communication ground station not only achieves high bandwidth and miniaturization
but also offers mobility and deployability at any location. These features enhance the reliability and stability of satellite-ground laser communication.
It is worth noting that the communication bandwidth of this satellite-ground laser image transmission test reached 10Gbps, which is more than ten times the bandwidth of traditional microwave data transmission. In the future, this bandwidth will be expanded to 40Gbps to 100Gbps
and will be deployed in multiple locations across the country, significantly improving the efficiency of acquiring remote sensing imagery data from the Jilin-1 satellite.
The success of the experiment signifies Jilin Province has achieved the full engineering implementation of the entire operational chain of satellite-ground laser highs-peed image transmission, with engineering application capabilities reaching an international advanced level. 🇨🇳
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During Trump’s previous 4 years, he didn’t actually accomplish anything; instead, he undermined the alliance system that the US had long established. His trade war against China didn’t halt China’s technological progress; instead, it accelerated China’s path to tech independence.
In every confrontation between China and the U.S., it's always the U.S. that makes the first move, yet it never succeeds and ends up putting itself in a passive position. I really don’t understand how such an incompetent system has the nerve to mock China.
Here's a news from July last year: China has successfully developed its own MRI machines and started mass production. From 1.5T to 3T and 5T, China has actually become a country that masters the core components technology and complete manufacturing of MRI machines,
covering both high-end and low-end sectors. T is the unit of magnetic flux density; the larger the value, the clearer the imaging.
Before China successfully developed its own MRI machines, Siemens charged ¥15 million for a 1.5T machine and ¥30 million for a 3.0T machine in China.
In contrast, China's domestically produced 1.5T MRI machines cost only ¥2.93-4.5 million each, and the 3.0T machines cost only ¥15.8 million.
In 1992, a letter was delivered to then Vice Premier of China, Zhou Jiahua, suggesting that China's automotive industry should skip the gasoline and diesel stages and directly transition to the stage of new energy with less environmental pollution. The letter summarized the
feasibility of using battery technology for cars and proposed that China organize efforts to leapfrog and achieve a leading position in the automotive industry.
Today, we can witness the explosive development of China's new energy vehicles, all thanks to the foresight provided
by this letter.
The person who wrote this letter is Qian Xuesen, the father of China's Dongfeng ballistic missiles and the Long March space rockets.
On May 1, 2018, Alibaba CEO Jack Ma visited the Western Wall. Many Western leaders appeared here, a scene that might be familiar to many Westerners but not to the Chinese.
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"It's amazing history, amazing things that we have to learn, and all human beings in the world should learn the history, preserve the tradition, respect the things our ancestors' been doing, it's something that really admire the vision of the Israel and Jewish ppl have done."
This is the Taobao Maker Festival in 2016-2018, positioned by its official description as the 'China Youth Creativity Exhibition,' aiming to showcase technology, music, trendy fashion, live entertainment, and subculture. Formerly known as the 'Taobao Carnival.'
Taobao is a
China's archaeology employs the 'triple evidence method', which requires that underground artifacts and extant Chinese literature mutually support each other, and finally need to conform to logical reasoning, thus forming a complete logical chain.
For example,
when archaeologists excavated the tomb of the Marquis of Haihun, experts used historical records like Book of Han and artifacts unearthed from the tomb to verify the identity of the tomb's owner. The historical accounts depict him negatively, yet experts,
considering the political struggles within the court at the time, have reconstructed the historical truth.
I bring this up because I just watched this video.
This is a typical Western interpretation of China's Xia Dynasty, but to me, it seems more like a discourse trap.