A battery of recorded spoofing scenarios has been compiled for evaluating civil Global Positioning System (GPS) signal authentication techniques. The battery can be considered the data component of an evolving standard meant to define the notion of spoof resistance for commercial GPS receivers. A description of the original TEXBAT, version 1.0, can be found here: T.E. Humphreys, J.A. Bhatti, D.P. Shepard, and K.D. Wesson, “The Texas Spoofing Test Battery: Toward a Standard for Evaluating GPS Signal Authentication Techniques,” Proc. ION GNSS, Nashville, TN, 2012. A. Lemmenes, P. Corbell, and S. Gunawardena, “Detailed Analysis of the TEXBAT Datasets Using a High Fidelity Software GPS Receiver“, Proc. ION GNSS+, Portland, OR, 2016.

Latest Version

TEXBAT 1.1 is the latest version of TEXBAT. TEXBAT 1.1 includes the original data sets from TEXBAT 1.0 and two new data sets, ds7.bin and ds8.bin, described below.

Data Download

The TEXBAT datasets can be download directly from UT here. If you have any difficulty downloading them, please send an email to Todd Humphreys. The md5sums of the files are: 7818159d734dcb731b443ca62cf1841f cleanDynamic.7z b2c0d49408a1a1b2f107a411561160d8 cleanStatic.7z 9303f1d9ff5679dd69fd8ca699091b4d ds1.7z db4a45a9a32dcc6aafc73924dce12efe ds2.7z 8f3fa6594d54998de002203febcc6bb6 ds3.7z 78dee92587c921ad4900b31a1b499003 ds4.7z 521c1716581741d5375ef09c3469fecc ds5.7z 31d23230ea968d5a90224baf4ba304c0 ds6.7z ab350a8f74602bb3ab93bba1cf2d8a4a ds7.bin 35f672b90c8f792bc3daa01495fe52e4 ds8.bin

ds7 and ds8

Two additional data sets, ds7.bin and ds8.bin were added to TEXBAT in August 2015. The ds7.bin spoofing scenario is based on the cleanStatic.bin data set. It is a power-matched time-push scenario like ds3.bin but more subtle because it employs carrier phase alignment between the spoofing and authentic signals. The ds8.bin spoofing scenario is identical to the ds7.bin scenario except that the spoofer treats every received navigation data bit as if it were an unpredictable low-rate security code and attempts to guess the value of the data bit in real time. This is a zero-delay security code estimation and replay (SCER) attack. A complete, detailed description of the ds7 and ds8 spoofing scenarios is available here. Scenarios ds7 and ds8 are available through direct download from UT.


A helper file to read in the binary files into Matlab is available here (author Logan Scott).
RNL uses the NI Record and Playback VI: “RF Record and Playback Reference Application“. You may need to increase the buffer size to allow real-time playback.
For reference, our NI equipment model numbers follow:
RFSA: NI PXIe 5663 RFSG: NI PXIe 5673
NI PXI-5652: RF Signal Generator NI PXIe-5601: RF Downconverter NI PXIe-5622: 16-Bit IF Digitizer NI PXIe-5450: 400 MS/s I/Q Signal Generator NI PXIe-5611: I/Q Vector Modulator NI PXI-5652: RF Signal Generator


Use of TEXBAT for research purposes is encouraged. If you use TEXBAT in developing an article or thesis, please reference the following paper: T.E. Humphreys, J.A. Bhatti, D.P. Shepard, and K.D. Wesson, “The Texas Spoofing Test Battery: Toward a Standard for Evaluating GPS Signal Authentication Techniques,” Proc. ION GNSS, Nashville, TN, 2012.

Known User List

As of July 2020, over 130 users have downloaded TEXBAT. The below list of users is made public to facilitate collaboration between interested parties and to document the proliferation of TEXBAT. Copyright Notice Copyright (c) 2012-2022 The University of Texas. All rights reserved. Permission is hereby granted, without written agreement and without license or royalty fees, to use, copy, and modify these data for research purposes. Users are requested to refrain from distributing the data. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THESE DATA AND THEIR DOCUMENTATION, EVEN IF THE UNIVERSITY OF TEXAS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF TEXAS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE DATA PROVIDED HEREUNDER IS ON AN “AS IS” BASIS, AND THE UNIVERSITY OF TEXAS HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.