DUST Search - Scan Profile

fred orpaul wrote:

Vaerana Myshtana wrote:

It is worth noting that both Scan Profile and Scan Precision are given in dB (decibels). Originally, I thought this might have to do with radar, since dB is used in tuning radar equipment, but it turns out that it is used the to determine the difference between input and output power.

So, the next most likely candidate is sound. Thus, your Scan Profile is the amount of noise your suit makes and its Scan Precision is its ability to hear sound and interpret its location.

So, as near as I can figure, Scan Precision is the amount of Scan Profile that you suit can accurately map at some distance (maybe Scan Range, but probably at some fraction thereof based on my experience).

This would also explain why running enlarges your Profile. You make more noise- which raises the question of whether in the future different surfaces will affect it as well, soft turf versus gravel, for instance.

However, there are definitely more complicating factors. Line-of-sight is a factor, as mapping behind cover is much more limited. I was doing the hidey dance with an Assault yesterday and he would only map out if I was near the edge of the shipping container. So clearly cover dampened his Profile, but I could still "see" around corners.

actually this is a good point I had assumed a radar like detector like the ships in eve. This answers a lot of questions I had about the system, so the range is not hard set, as sound fades over distance, the louder the sound the farther out your scanners will pick it up, the scanner range bonus increases your sensitivity out to a set range, nice that also makes fully leveling your sensor profile in a scout or assault mostly pointless


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Vrain Matari ZionTCD Legacy Rising 404	Posted - 2013.02.10 02:10:00 - [1] - Quote I think at this point nobody really knows for sure, although if you search the forums you will find some very solid posts by peeps. As a community we're still reverse-engineering this one. All I've got to add here is that I've come to the conclusion(yeah, i'm a bit slow) there's 2 separate things going on: 1) Visual detection. Namely, if you can see somebody, you light them up on the minimap and on the HUD. However, there may be a range associated with this. For example, although you can see a merc 100 m away, there won't but a chevron above his head. 2) Suit sensors - I used to think from CCP's description that these sensors were optical, i.e., you had to see something to light it up. I'm thinking now that that is not the case. From other peoples descriptions and my own experience(my suit has lit peeps up that are not in my line of sight, and i'm 90% certain were not in any other player's line of sight), suit sensors work around corners and behind you. But in thinking about this, be careful of Scan Precision - when our suit detects something and puts it on the minimap, there may be a positioning error of several meters, so be cautious drawing conclusions based on this data until you get your scan precision trained up. So what signal do suit sensors pick up? At this point i'm just not sure. The sensors may be bi or tri-modal, picking up sound, visual and other signals and turning the composite into a dot on the minimap & a chevron on the HUD. P.S. If the community really wants to figure this out, it's prolly worth all of us building a max-scan-precision loadouts and running with it for a dozen matches or so to see if we can learn anything.
Vrain Matari ZionTCD Legacy Rising 404	Posted - 2013.02.12 13:56:00 - [2] - Quote fred orpaul wrote: Vaerana Myshtana wrote: It is worth noting that both Scan Profile and Scan Precision are given in dB (decibels). Originally, I thought this might have to do with radar, since dB is used in tuning radar equipment, but it turns out that it is used the to determine the difference between input and output power. So, the next most likely candidate is sound. Thus, your Scan Profile is the amount of noise your suit makes and its Scan Precision is its ability to hear sound and interpret its location. So, as near as I can figure, Scan Precision is the amount of Scan Profile that you suit can accurately map at some distance (maybe Scan Range, but probably at some fraction thereof based on my experience). This would also explain why running enlarges your Profile. You make more noise- which raises the question of whether in the future different surfaces will affect it as well, soft turf versus gravel, for instance. However, there are definitely more complicating factors. Line-of-sight is a factor, as mapping behind cover is much more limited. I was doing the hidey dance with an Assault yesterday and he would only map out if I was near the edge of the shipping container. So clearly cover dampened his Profile, but I could still "see" around corners. actually this is a good point I had assumed a radar like detector like the ships in eve. This answers a lot of questions I had about the system, so the range is not hard set, as sound fades over distance, the louder the sound the farther out your scanners will pick it up, the scanner range bonus increases your sensitivity out to a set range, nice that also makes fully leveling your sensor profile in a scout or assault mostly pointless Just a general point - decibels applies to any signal, so the fact that CCP is using decibels doesn't actually give us any information regarding what type of signals the suits are scanning for. What it does indicate is that there's only one kind of signal(besides visual), or else CCP would have to quote multiple separate sensitivities for each sensor channel.
Vrain Matari ZionTCD Legacy Rising 404	Posted - 2013.02.12 14:43:00 - [3] - Quote ...and, to contradict what I just posted, just saw this and it may be pertinent to our discussion: GÇ£Spec Ops units perform clandestine work. Trained to move through the battlefield undetected, they utilize suits designed to minimize acoustic and electronic signatures making the wearer virtually invisible. Spec Ops-class suits are ideal for bypassing point defenses or infiltrating key battlefield locations.GÇ¥ ...from https://forums.dust514.com/default.aspx?g=posts&m=540018#post540018 So if we can take this statement as accurate the suit sensors are using two input channels, acoustic and electronic, besides straight-out optical detection. My question then is what does the quoted db scan sensitivity refer to, acoustic signals, electronic signals, or both?
Vrain Matari ZionTCD Legacy Rising 404	Posted - 2013.02.12 18:07:00 - [4] - Quote Beren Hurin wrote: One thing I notice that seems peculiar is you can tell when dots are shooting at each other, if they are facing each other because each has a 'vector' or direction they face. If it is hot I will watch which red dots I have to worry about (or not worry about) as a result of them being 'tied up' by blues. But sometimes it looks like the dots aren't even facing each other, but one ends up dieing. This could be what a 'cover battle' looks like, but I wonder if the vectors could be off. I want to be careful to distinguish orientation behavior on the mini-map from orientation behaviour in the HUD, because it's an unproven assumption that they are one and the same. By now we've all observed how when looking through the HUD, other players toons can be mis-aligned. For example, pointing away from you but still hitting you with weapons fire. This is prolly due to varying lag between DUST clients that is resolved later at the battle server - I'm speculating the same thing can happen with the minimap as far as position or orientation is concerned.