Stack Overflow
Stack Overflow

Questions tagged [android-gnss]

18 questions
5
votes
1 answer

Using raw GNSS Measurement could one potentially increase sample rates?

I'm looking for ways to increase the position sample rate using an android phone. How to get a higher sample rate has been asked before about once a year here at SO. But my question is more specific. By using the new Raw GNSS Measurements would it…
just_user
  • 11,769
  • 19
  • 90
  • 135
2
votes
0 answers

How do I get raw gnss data using javascript?

I am developing a web app for indoor navigation system .For this I tried the geolocation api to get gps.It doesn't give latitude and longitude as accurate as I would like (even with highaccuracy enabled).I learnt that by using gnss we can get…
Dhanraj Mahurkar
  • 21
  • 2
1
vote
0 answers

requestLocationUpdates (e.g 10 000 miliseconds) not affecting GnssMeasurementEvent.CallBack onGnssMeasurementsReceived() updates intervals

Background I am doing a research involves developing an Android application which collects GNSS measurements and NMEA sentences. Details I have managed to receive and log out both GNSS and NMEA data. And it seems to updates every seconds. But now…
Thành Diệp
  • 11
  • 1
1
vote
2 answers

How to compute pseudorange from the parameters fetched via Google GNSSLogger?

The official GNSS raw measurements fetched via GNSS logger app provides the following parameters : TimeNanos LeapSecond TimeUncertaintyNanos FullBiasNanos BiasNanos BiasUncertaintyNanos DriftNanosPerSecond…
Aniket Raj
  • 43
  • 7
1
vote
0 answers

How to mock locations without GPS_PROVIDER and keep GNSS measurements listener enabled in Android

I wrote an app which can obtain GNSS raw measurement data using LocationManager.registerGnssMeasurementsCallback(...) The app can process this data and calculate a new positions. Now, I would like to mock this calculated positions into the Android…
Armai
  • 162
  • 1
  • 1
  • 10
0
votes
0 answers

How to project a point using PROJ?

I am writing to seek guidance on how to project a point from one ellipsoid to another ellipsoid using the Proj library. I have been working on a geospatial project that requires converting coordinates between different ellipsoids. After some…
Rohith dreamtns
  • 1
0
votes
0 answers

Read binary data through MATLAB

I have record the GPSL1 signal in the .bin format using USRP 2900 Parameters are: Frequency = 1575.42M I/Q rate = 4M Gain = 25dB............... Now i want to extract tracking data in .mat form and in .dat form can you help me fid =…
Rizwan Ashfaq
  • 1
0
votes
0 answers

Through NMEA data, how to get four satellite states: not in use, receiving, searching, and in use?

In GPS, through NMEA data, how to get four satellite states: not in use, receiving, searching, and in use? Is it through the SNR value in GSV? What is the SNR value in GSV
man mook
  • 1
0
votes
2 answers

Getting mean sea level altitude on Android instead of ellipsoidal elevation

For geospatial purposes I need my Android application to deliver the users current mean sea level elevation. My first attempt was to use the system's own locationManager. When requesting a location it delivers exactly those properties I have to…
lprend
  • 123
  • 1
  • 10
0
votes
0 answers

FusedLocationProviderClient: Position frequency

I'm trying to get a good position via android and GNSS. The locationManager of Android gives me in every Case only one update per second. So i decided to switch to the GoogleFusedApi and the FusedLocationProviderClient to get my current position…
Nicooost
  • 76
  • 6
0
votes
1 answer

Why do we call everything a GPS location?

At the moment I'am working on a application that is using the location of a phone. Before I started with building my application I did some research about how the phone location is working. The conclusion is that a mobile phone can talk to a GNSS…
Theproudwolf
  • 9
  • 3
0
votes
2 answers

GnssClock method getFullBiasNanos returns a decreasing number every callback when it should be increasing by definition

The method public long getFullBiasNanos () in the GnssClock class is defined to be: the difference between hardware clock (getTimeNanos()) inside GPS receiver and the true GPS time since 0000Z, January 6, 1980, in nanoseconds. So i assumed that…
forstack overflowizi
  • 324
  • 1
  • 3
  • 15
0
votes
0 answers

How to directly access GNSS sensor in iOS

Is there any way, to directly access the internal GNSS sensor data of iOS devices? I don't want to access the already processed GNSS locations from the CoreLocation API. In Android it's possible to access these raw measurements (pseudorange, carrier…
Christian
  • 27
  • 4
0
votes
2 answers

java.lang.NoClassDefFoundError while using android.location.GnssAntennaInfo

I am trying to run GnssAntennaInfo. Everything runs fine with on the emulator. When testing on real devices (sdk 27), the app crashes with the following error: 2020-11-23 10:57:59.470 1203-1203/com.example.axpapp E/AndroidRuntime: FATAL EXCEPTION:…
Ulysses
  • 17
  • 2
0
votes
1 answer

Is getLastLocation of android locationManager using GnssAntennaInfo?

I'm an Android developer. From Android 11, the GnssAntennaInfo class that can utilize dual-frequency GNSS has been added, and it has been confirmed that developers can use it. If so, is GnssAntennaInfo already used in getLastLocation method of…
김신환
  • 1
1
2