this is more of a logique question rather than a code question, but maybe you can introduce me to a function that does thi or verify that my logique does actually get me the average of values. See the wireless icon next to the network. I am just not sure if my code expresses that perfectly. To determine the signal strength of a Wi-Fi connection on Windows 10, use these steps: Click the network icon in the notification area of the taskbar. getBluetoothLeScanner(). 2) For android 5.0+ devices you have to start scanning by BluetoothLeScanner classs startScan method, like below. We compute the AVGRSSI as follows: Figure 1. What is even more important, is the fact that the asymmetry of the links does not depend on the actual RSSI values. This ensures that any noise or biases from multipath affects each test configuration equally in the average (instead of adding an extra boost to weakly received signals). So I know that to have a precise average to decibel values, you have to linear them first and then get the average. onLeScan(BluetoothDevice device, int rssi, byte scanRecord) // second param above is RSSI value. To average RSSI values, we first convert to power, then convert back to dB. Rssi_avg = 20 * log10f(rssi_linear_sum / rssi_num) Rssi_linear_sum += powf(10, (float)rssi_val / 20) Some adapters use a scale of 0-60, and others 0-255. Would return similar values to what I get.*/ RSSI (Received Signal Strength Indicator) is a common measurement, but most Wi-Fi adapter vendors handle it differently, as it isn't standardized. Wireless radio communication can however be (temporarily) affected by various. The higher the number, the better the signal. Measurements can be successfully transmitted at RSSI values up to -102 dBm. This value relates to the signal strength of the cellular signal from the tower to the modem. The RSSI is indicated by a negative dBm value. Sake of concision, I replaced it with a loop that In telecommunications, Received Signal Strength Indicator (RSSI) is a measurement of the power present in a received radio signal. Values through a bluetooth service, it returns an int8_t value, for the * rssi_get() in my actual code is a function that gets rssi So here i a little code that I need to calculate the average of some rssi values: #include
0 Comments
Leave a Reply. |