SAR Imagery Reveals Presence of Concealed Sub at North Korea’s Sinpo Naval Base

https://www.38north.org/2020/01/sinpo010320/

by infodocket • 7 years ago

76 15 7 years ago

antpls2• 7 years ago

Off topic :

I cannot access the page, "One more step,Please complete the security check to access www.38north.org" (captcha from cloudflare it seems)

Solving the captcha didn't work for me, more captcha are presented to me.

I'm on LTE network with javascript disabled, and I'm not allowed to access the page.

This is discrimination, CAPTCHA should be illegal

EDIT : for people with same issue, this works : https://web.archive.org/web/20200104181552/https://www.38nor...

Thriptic• 7 years ago

Are you VPNed or using TOR? I'm blocking JS and am not having this problem.

antpls2• 7 years ago

No ! I use data from mobile phone (so the local mobile network provider, france)

daj40• 7 years ago

This sounds less like discrimination and more like a bug.

Where are you coming from that you think that a CAPTCHA would be used to prevent you from seeing this?

yread• 7 years ago

Are algorithms used for processing these images subject to the recently announced embargo? Cool stuff.

I somehow missed that North Korea has a ballistic missile submarine. Makes a war against them even more difficult.

derstander• 7 years ago

SAR processing algorithms are available in open world academic literature (papers and books). Though I don’t know the specifics of the system in the article to know whether that specific algorithm is subject to any sort of export restrictions.

Most implementations I’ve come across are variations of the standard textbook approaches, with modifications made for computational efficiency or a little company-specific secret sauce (think proprietary techniques) thrown in.

If you’re looking for some search terms, you might try: “polar format”, “range migration”, or “tomographic backprojection”. The first two are Fourier-transform based approaches that are relatively computationally efficient. The last, in its textbook form is O(n^3) — less efficient.

SiempreViernes2• 7 years ago

They are working on putting ballistic missiles on a sub, currently they only have road mobile ICBMs that can reach much of the USA with nukes.

portaljester• 7 years ago

You have a source for that? All the info I have seen on their missiles is them having a rough time launching them

elfexec• 7 years ago

Makes a war against them even more difficult.

North Korea could be armed with sticks and stones and war against them would be just as difficult since they are backed by china explicitly and russia implicitly. If china and russia said north korea is on their own, we'd bomb them back to the stone age within a few hours. As long as north korea is back by china and russia, they are pretty much off limits.

xxxtentachyon• 7 years ago

Seoul's proximity to the border and the NK artillery based there complicates things more than you suggest: https://worldview.stratfor.com/article/how-north-korea-would...

darkhorn• 7 years ago

Well, may be. I'm not sure if I should trust USA after their lies about Iraq in early 00s.

SAR Imagery Reveals Presence of Concealed Sub at North Korea’s Sinpo Naval Base

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