是否可以使用移动设备进行wifi/蓝牙三角测量(非三角测量)?
要进行三角测量，您需要确定设备接收信号的方向.我们可以为此计算到达角度，但是计算该角度需要一个数组的接收器.手机能够计算到达角吗?我之所以这么问，是因为我遇到过wifi/BLE三角剖分，通过三角剖分计算位置等术语，但是在大多数情况下，它们实际上是指 Trilateration .我知道三角测量在移动设备上的工作原理以及所有细节，但是我认为三角测量是不可能的.如果有可能的话，如果您使用 ibeacons 来估计位置，怎么可能以及希望哪一个(三角测量或三边测量)产生更好的结果?
Well for triangulation you need to have the direction from which your device is receiving the signal.We can calculate Angle of Arrival for that but calculating that angle requires an array of receivers. Is a cell phone capable of calculating Angle of Arrival? I am asking this because I have came across the terms like wifi/BLE triangulation, calculating position by triangulation etc but they're actually referring to Trilateration in most of the cases. I know how trilateration works for a mobile and all the details but I don't think Triangulation is possible. And if it is possible, how is it possible and which one (triangulation or trilateration) is expected to give better result if you use ibeacons to approximate positions?
正如您所指出的那样，很多人都是误导性的用语.现在无法使用标准ble信标或WiFi(我的意思是不修改标准ble 4.0或4.1和WiFi)进行三角剖分，因为该标准不会报告有用信息，例如相位(如果您有相位和一系列定向天线，每次以预定频率通电一次，您可以使用MUSIC之类的算法并处理角度)，但我们只有一米的Rssi和TX功率(如果是iBeacon)，这些信息可以估算出非常不精确的距离并由于多径和衍射而随时间快速波动. 在Nextome中，我们发明了一种缓解多径衰落的算法，该衰落会导致信号反弹并实现大约1米的高精度室内定位而不会产生指纹. 目前，除了三边测量法外，没有人使用标准iBeacon测试过三角测量法.我将开始至少寻找平方近似来解决三边测量问题，但不要期望在不滤除噪声的情况下获得大的结果.
Lot of people are misleading terms as you pointed out. Triangulation is not possible with standard ble beacons or WiFi (I mean without modify the standard ble 4.0 or 4.1 and WiFi) right now because the standard doesn't report useful information like the phase (if you have phase and an array of directional antennas that are powered on one per time at a predetermined frequency you can use algorithms like MUSIC and deal with angles) but we only have Rssi and TX power at one meter(if it's an iBeacon) with those information we can estimate the distance that is very imprecise and fluctuate rapidly over time because of multipath and diffraction. In Nextome we have invented an algorithm to mitigate multipath fading that causes signal to bounce and achieve high accuracy Indoor Positioning of about 1 meter without fingerprinting. No one has tested triangulation with standard iBeacons right now but trilateration. I would start looking at least square approximation to solve the trilateration problems, but don't expect big results without filtering out the noise.