GNSS-matlab-master.zip

# GNSS codes, signals and spectrum generation for Matlab All the contents were developed for the [passive remote sensing group (RSLab)](https://prs.upc.edu/) as a part of the [Remote Sensing Laboratory](http://www.tsc.upc.edu/en/research/rslab), a research line of the [CommmSensLab Group](http://www.tsc.upc.edu/en/research/commsenslab) at the [Signal Theory and Communications Department (TSC)](http://www.tsc.upc.edu/en) of the [Universitat Polit�cnica de Catalunya (UPC)](http://www.upc.edu/?set_language=en). The first version of this program was uploaded in the [IEEE Remote Sensing Code Library (RSCL)](https://rscl-grss.org/) with DOI: [10.21982/M8F59K](https://rscl-grss.org/coderecord.php?id=479) New versions of this program may be found at [GitHub](https://github.com/danipascual/GNSS-matlab). ## Contents #### \documentation + GNSS_signals_v1.0.pdf: A summary of the GNSS codes, signals, spectrum and auto-correlation functions. + Official ICD documents can be obtained from [here](https://mega.nz/#F!GXJGlKoA!Iu3S3DPCItlIXr1pQ_rI8Q). #### \prn_codes + Matlab data container (.mat) files with next unsampled codes: + GPS: L1CA, L2CM, L2CL, L5I, L5Q. Galileo: E1B, E1C, E5aI, E5aQ, E5bI, E5bQ. BeiDou-2: B1I #### \real_data Real data captures can be used to test the functions. Get them [here](https://mega.nz/#F!aCxChKbA!HKGQC1X2CDfN-nmkovVjyg). + capture_04.mat + fs = 2.5 MSps + duration = 1.5 s + band: L2 (1.2276 GHz) + Known present PRNs: GPS L2C 26 + data type: Matlab complex int16 (I don't remember the original bit depth, but most probably was 8 bits) + test_2_cut.dat + fs = 20 MSps + duration = 5 ms + band: L1 (1.57543 GHz) + Known present PRNs: GPS L1 C/A 13 + baseband 16 bits complex (16 bit I + 16 bit Q) + data type: signed int16 + test_4_cut.dat + band: L5 (1.17645 GHz) + Known present PRNs: GPS L5 30 + baseband 16 bits complex (16 bit I + 16 bit Q) + fs = 20 MSps + duration = 20 ms + data type: signed int16 + test_5_cut.dat + band: E5A (1.176450000 GHz) + Known present PRNs: Galielo E5A 30 + baseband 16 bits complex (16 bit I + 16 bit Q) + fs = 20 MSps + duration = 5 ms + data type: signed int8 + test_6_cut.dat + band: E5B (1.20714 GHz) + Known present PRNs: Galielo E5B 7 + baseband 16 bits complex (16 bit I + 16 bit Q) + fs = 20 MSps + duration = 5 ms + data type: signed int8 + test_11_cut.dat + band: E5 (1.191795 GHz) + Known present PRNs: Galielo E5 3 + baseband 8 bits complex (8 bit I + 8 bit Q) + fs = 50 MSps + duration = 100 ms + data type: signed int8 + test_14_cut.dat + band: E1 (1.57543 GHz) + Known present PRNs: Galielo E1OS 3 + baseband 8 bits complex (8 bit I + 8 bit Q) + fs = 50 MSps + duration = 100 ms + data type: signed int8 #### \source + GNSScodegen.m: Generates GNSS unsampled codes. + GPS: L1CA, L2CM, L2CL, L5I, L5Q. + Galileo: E1B, E1C, E5aI, E5aQ, E5bI, E5bQ. + BeiDou-2: B1I. + GNSSsecondarygen.m: Generates GNSS unsampled secondary codes + GPS: L5I, L5Q. + Galileo: E1C, E5aI, E5aQ, E5bI, E5bQ. + GNSSsignalgen.m: Generates sampled GNSS signals. + L1CA: GPS L1 C/A signal + L2C: GPS L2C signal + L2CM: GPS L2C data component + L2CL: GPS L2C pilot component + L5: GPS L5 signal without secondary codes + L5+: GPS L5 signal with secondary codes + L5I: GPS L5 signal data component without secondary codes + L5Q: GPS L5 signal pilot component without secondary codes + L5I+: GPS L5 signal data component with secondary codes + L5Q+: GPS L5 signal pilot component with secondary codes + E1OS: Galileo E1OS signal with secondary codes + E1OS+: Galileo E1OS signal without secondary codes + E1OS_complex: Galileo E1OS signal without secondary codes with the E1C component in the imaginary part + E1OS+_complex: Galileo E1OS signal with secondary codes with the E1C component in the imaginary part + E1OS_B: Galileo E1OS data component + E1OS_C: Galileo E1OS pilot component + E1OS+_C: Galileo E1OS pilot component with secondary codes + E5: Galileo E5 signal without secondary codes + E5+: Galileo E5 signal with secondary codes + E5A: Galileo E5A signal without secondary codes + E5B: Galileo E5A signal without secondary codes + BOCgen.m: Generates the sub-carriers needed for the BOC-based modulations + GNSSspectrumgen.m: Generate GNSS analytical spectra. + GPS L1: L1CA, L1P, L1M, L1C, L1Cd, L1Cp, L1Cp1, L1Cp2, L1, L1_new. + GPS L2: L2C, L2P, L2M, L2, L2_new. + GPS L5: L5I, L5Q, L5, L5_new + Galileo E1: E1PRS/EA, E1OS. + Galileo E6: E6PRS/E6OS. + Galileo E5: E5, E5A, E5B. + BeiDou-2 Current: + B1: B11, B12, B1 + B2: B2I, B2Q, B2 + B3: B3 + BeiDou-2 Future: + B1: B1Cd, B1Cp, B1C, B1_new + B2: B2_new + B3: B3_new, B3A, B3composite #### \examples Example files calling the above functions. ## Licence You may find a specific licence files in each directory. ## Contact Daniel Pascual (daniel.pascual at protonmail.com)