蘑菇头要跟习大大打外层空间战

x
xinchong
楼主 (未名空间)


究竟最终鹿死谁手?

如果美帝的F22打不过J20, 在外空的技术又能占多少便宜?

U.S. Builds Ground-Based Arsenal to Jam Russia, China Satellites

(Bloomberg) — The new U.S. Space Force is building an arsenal of as many as 48 ground-based weapons over the next seven years designed to temporarily
jam Russian or Chinese communications satellite signals in the opening hours of a conflict.

The first system, made by L3Harris Technologies Inc., was declared
operational last month after years of development, and the Space Force has
taken delivery of 16 of them. The service is also developing a new system,
known as Meadowland, that’s lighter-weight, capable of adding updated
software and able to jam more frequencies.

Since its formation last year as the sixth branch of the U.S. military,
attention has focused on the Space Force’s defensive duty in safeguarding U.S. satellites and on organizational questions about its budget and its
relationship with the Air Force. Less has been disclosed about its offensive role, which centers on Meadowland.

“Nothing else we’re doing in Space Force is offensive in nature, where we are actually going after an adversary,” said Lieutenant Colonel Stephen
Brogan, a unit head in the combat systems branch of the Air Force Space and Missile Systems Center, which is managing development and procurement.

L3Harris, based in Melbourne, Florida, is already developing four Meadowland systems projected for delivery around October 2022. By this December, the
Space Force plans to open a competition for 28 more, with funding starting
in fiscal 2021 and systems projected for delivery from late 2023 to early
2027.

As of now, Brogan said in an interview, the jamming systems are designed to interfere with communications satellites and not those for data relay or
taking photos.

Weaponizing Space

U.S. defense officials long spoke against turning space into a battlefield, much less fielding weapons that could demolish targets and add more
hazardous space debris.

The Space Force said in a statement that “China and Russia have weaponized space with the intent to hold American space capabilities at risk,” and the U.S. has the inherent right of self-defense.

Russia’s test launch on Wednesday of an anti-satellite missile is “further proof of Russia’s hypocritical advocacy of outer space arms control
proposals designed to restrict the capabilities of the United States while
clearly having no intention of halting their counterspace weapons programs,
” the Space Force said in a separate statement.

Why Trump Wants New Military Branch, the Space Force: QuickTake

The new jamming system can be used early in a conflict and won’t create “
space junk” because it emits energy designed to cause temporary, “
reversible” interference, Brogan said.

The Air Force said in a separate statement that the jamming can prevent an
adversary’s “ability to accomplish command and control, early warning and propaganda” across “multiple frequency bands.”

Advocates of preserving space as a weapons-free domain say the new U.S.
jamming system risks escalation, even if it’s not designed to destroy
satellites.

“There are going to be those — let’s call them ‘U.S. competitors’ —
who will find the development of any explicit counterspace system to be
inflammatory and provocative, whether it is reversible or not,” said
Victoria Samson, the Washington director of the Secure World Foundation,
which publishes an annual overview of military space activities.

“Competitors who have their space assets interfered with at times of crisis don’t know if/when it will stop; it is possible that they will have to
assume that it’s irreversible and go from there,” she said. “Are we
signaling that we are OK with officially targeting space assets?”

China, Russia

According to the Pentagon’s Defense Intelligence Agency, China and Russia
rank behind the U.S. in the number of orbiting satellites. As of late 2016, Russia had about 40 communications satellites in orbit.

“Over the next several years, Russia will prioritize the modernization of
its existing communications, navigation, and earth observation systems,
while continuing to rebuild its electronic intelligence and early warning
system constellations,” according to the DIA.

China is pursuing parallel programs for military and commercial
communications satellites and owns and operates about 30 of those for civil, commercial, and military satellite communications, the DIA said last year. Beijing also operates a small number of dedicated military communications
satellites.

The new Meadowland system has two racks of equipment instead of the 14 on
the one deployed last month, saving 10,000 square feet of storage space and making the systems more compact and easier to deploy, Brogan said.

Unlike the current model, Meadowland will use more open architecture
software for updates that allow for a “additional capability to go after
more satellites, using more techniques as they are developed,” Brogan said.

©2020 Bloomberg L.P.