Wifi三角测量 [英] Wifi Triangulation

问题描述

无源网络三角测量的最佳方法是什么？是否有工具可用？算法？我的目标是创建使用信号强度（DB），信号/噪声比，信号相位等发送或接收信号的各种对象的相对地图。从几个位置点。有了足够的抽样，我猜想可以创建一个很好的2d / 3d地图。

我正在寻找任何语言/平台的东西。 p>

一些关键字：Wi-Fi网站调查，可视化，覆盖，位置，定位

想想使用kismet收集数据然后处理它。也许在2.4Ghz范围内RF的空闲路径损耗可以计算相对距离。并且还可以选择使用 RF障碍物衰减估计值（基于某些用户输入）来提供更好的估计值。然后使用三边形来生成可能的相对坐标。

解决方案

您不能使用GPS技术，因为时间不够准确。
您可以做的最好的是根据每个基站的信号强度，三边测试假设该范围与信号成比例。

您可能需要依次强制连接到每个基站，以测量信号强度。

What would be the best way to triangulate a wireless network passively. Are there tools available? Algorithms? Libraries?

My goal would be to create a relative map of various objects that sends or receive signals using signal strength (DB's), signal/noise ratio, signal phase, etc. from a few location points. With enough sampling, i'm guessing it would be possible to create a good 2d/3d map.

I'm searching for stuff in any language / platform.

Some keywords: wi-fi site survey, visualization, coverage, location, positioning

Thinking about using kismet to gather the data and then process it. Maybe Free Space Path Loss for RF in the 2.4Ghz range to calculate a relative distance. And optionally try to use RF obstacle attenuation estimation values (based on some user input) to give better estimates. Then use trilateration to generate possible relative coordinates.

解决方案

You can't use the GPS technique because the timing is nothing like accurate enough. The best you can do is Trilateration based on the signal strength from each base station and assume that range is proportional to signal.
You will probably need to force a connection to each base station in turn in order to measure the signal strength.

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