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Qqqwxs

HN member
Joined
Thu, Sep 13, 2018, 2:50 AM UTC
HN karma
248
Public activity
41 items

About Qqqwxs

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Recent public activity

  1. comment
    Comment #43829879

    It's functionally equivalent to an RTK base station (the configuration script I'm using is even called "RTKbase"[0]), but it's being used for researching GPS-based soil moisture re…

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    Comment #43817674

    I'm running a Raspberry Pi based GNSS receiver from a 26 Ah SLA battery and an 80W panel. Just passed 2 weeks of uptime in a cloudy period of southern hemisphere autumn. A monte ca…

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    Comment #42471052

    To expand upon this: >> They're measuring it by looking for phase differences in the received L-band (~2GHz) signals The "L-Band signals" are GNSS signals, for example GPS L1 and L…

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    Comment #42429085

    Is paid software OK? Have you looked at Revit?

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    Comment #39922546

    This comment made me curious. Apparently, TAI specifically defines the second (in terms of cesium transitions) at sea level (where gravitational potential is equal). I never knew t…

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    Comment #38834489

    If you want to go further down the LIDAR path, you might be able to improve the public data by making manual improvements to the point cloud classification. For that sort of terrai…

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    Comment #38677525

    https://archive.is/MgHXB

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    Comment #37157853

    More specifically, you need to solve for the receiver clock bias. https://www.e-education.psu.edu/geog862/node/1724 Edit: I would welcome corrections though if I am misunderstandin…

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    Comment #37157802

    GPS determines a solution for position and time simultaneously. It requires 4 satellites to solve for 4 unknowns (X, Y, Z, t). If you know your position you can solve for time usin…

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    Comment #36870314

    A group of students at my university were claiming their papers were being marked by a LLM. They cited a classifier like the OP which they used on their feedback comments.

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    Comment #34672178

    I'd also be interested in further discussion into something like that. Talk about deja vu.

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    Comment #34660016

    A friend of mine once described this as a "critical hit chance" (ala video games). There's not much chance of a 'critical hit' if you're just hanging around home, for example. But …

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    Comment #33288594

    > What the US government did was remove the bias from the CA code so it could be used for precise positioning. The military still uses P codes as well. I believe there is a small g…

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    Comment #28941815

    I'm quite early in the course, so couldn't give you a good answer sadly. The intro to surveying class had a very broad overview of the history- important technologies, discoveries,…