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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Recently the United States, Canada, and South Korea announced a ten-day military exercise within the Yellow Sea near China. Originally scheduled to take place from the 15th to the 25th, however some unexpected events have occurred.
From the map, it can be seen that the United States and its puppets arrogantly believed that they could hold military exercises near China under the pretext of commemorating the Incheon Landing.
However, the PLA was approaching Guam from both the north and south sides of Taiwan.
Furthermore, China has announced military exercises on the northern side of the Yellow Sea. From this map, it can be seen that the US military has been cut off by the Chinese East Sea Fleet, making the situation of the joint US-South Korea military exercise incredibly awkward.
American economist David Goldman believes that the possible outcome of the chip war is the emergence of two global chip supply chains: one dominated by the West and the other dominated by China.
Goldman states that once China starts mass-producing something, they often excel in offering affordable and high-quality products, capturing a significant market share. "We are creating a formidable competitor with our own hands," says Goldman.
However, he may be overly optimistic because China is not aiming to develop EUVs, but rather the next-generation X-ray lithography machines that are more advanced than EUV. The X-ray lithography machines adopt a wavelength smaller than 10nm, even as small as 0.01nm.
Memory prices have dropped significantly this year, in YouTube, many tech influencers in the US explain it as a "shift in supply and demand before and after the pandemic."
However, today I bring you a different story, and its name is YMTC (Yangtze Memory Technologies Co., Ltd.).
Story might be a bit lengthy, and I apologize for y'all endure this long thread. Most of my socializing happens on Chinese apps, and I was originally just planning to casually browse on Twitter,don't know I'd end up sharing some tales about Chinese technology with all of you.😅
YMTC is an emerging company that was established in 2016. However, their astonishing technological progress has caught up rapidly.
By the end of 2017, YMTC developed 32-layer NAND flash memory, nearly five years later than Samsung at that time.
Many people are interested in Huawei, of course. It's a much bigger name, equivalent to China's Apple and Qualcomm perhaps. However, few people know that China also has its own "Intel". In this thread, I'd like to give a brief introduction to Loongson.
It is a domestically developed processor instruction set in China. Currently, the commonly seen instruction set architectures in the market include X86, ARM, MIPS, RISC-V, and so on. LoongArch is now also among them.
From the table, it can be seen that the companies that have both in-house architecture and in-house instruction set are only Intel, AMD, and Loongson. (Hint:Huawei may now have its own wafer fab.)