Search found 7 matches

by peekli
Fri Jun 17, 2016 2:38 am
Forum: Digital Signal Processing
Topic: GPS simulating
Replies: 7
Views: 20478

Re: GPS simulating

Thanks pmmeasures. It exactly right that wifi and mobile network will affect.
by peekli
Wed Jun 15, 2016 2:02 am
Forum: Tutorials and Examples
Topic: no need to panic while updated to firmware 2.0.0
Replies: 3
Views: 11667

no need to panic while updated to firmware 2.0.0

This is a share of experience for new pie:) we can update firmware through: https://github.com/Nuand/bladeRF/wiki/Upgrading-bladeRF-firmware If you update the firmware to 2.0.0, after the update finished, you may meet the condition as following: Both bladeRF-cli under Ubuntu and Windows , cannot ide...
by peekli
Wed Jun 15, 2016 12:37 am
Forum: Digital Signal Processing
Topic: GPS simulating
Replies: 7
Views: 20478

Re: GPS simulating

Now I come back with more stable result again. first, the result: successul signal bar. Screenshot_20160615-151812.png successful position: Screenshot_20160615-145202.png google map shows: Screenshot_20160615-151307.jpg It is in middle of lake geneva. (Have been to geneva in the year 2012, love the ...
by peekli
Tue Jun 14, 2016 10:05 pm
Forum: Digital Signal Processing
Topic: GPS simulating
Replies: 7
Views: 20478

Re: GPS simulating

thank you, jynik. I tried again, and succeeded to fix the GPS position one time. Later try failed... What I did is as following: 1. attach a VAT -30+ attenuator to bladerf Tx port, and then fix the GPS attennna onto this attenuator, like this: Screenshot_20160615-124648.jpg I put the test mobile pho...
by peekli
Tue Jun 14, 2016 1:36 am
Forum: Digital Signal Processing
Topic: GPS simulating
Replies: 7
Views: 20478

Re: GPS simulating

The error value is bladerf Calibration result. the bladerf.script itself has calibrate it. as flollowing: set frequency tx 1575.42M set samplerate 2.6M set bandwidth 2.5M set txvga1 -25 cal lms cal dc tx tx config file=gpssim.bin format=bin tx start tx wait The result is: TX DC I: Value = 80, Error ...
by peekli
Mon Jun 13, 2016 11:00 pm
Forum: Project showcase
Topic: Low-cost GPS signal simulator
Replies: 2
Views: 25311

Re: Low-cost GPS signal simulator

Hi, I have tested it and have some prloblem :(
Have posted in https://nuand.com/forums/viewtopic.php?f=7&t=3860

Could you please help a little ?
by peekli
Mon Jun 13, 2016 9:51 pm
Forum: Digital Signal Processing
Topic: GPS simulating
Replies: 7
Views: 20478

GPS simulating

Hi: I have bought a brand new bladerfx40. I want to try GPS spoofing, but failed on WIndows 8.1 and ubuntu 16.04. the main test code is from: github.com/osqzss/gps-sdr-sim and the version the latest (current time). before test, I use a GPS attenna fixed into TX port of bladeRF. On Windows: (win8.1 6...