David Protzman
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e0985e25f0
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Updated calculate channel to take the symbol number
This was to experiment with using different symbols for equalization
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2022-04-19 22:45:06 -04:00 |
David Protzman
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aa2e3c3889
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Added cyclic prefix length variable for CFO
This is needed since the cyclic prefix could change depending on which symbol is used for CFO estimation
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2022-04-19 18:40:40 -04:00 |
David Protzman
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28b148a895
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Now saving constellation plots to disk
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2022-04-19 18:39:52 -04:00 |
David Protzman
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160ad89aac
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Updated wording about additional byte
It's not clear to me what the additional byte is, but the length identifier does not account for it. Made that more clear
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2022-04-19 18:38:12 -04:00 |
David Protzman
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53c6840a36
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Added comment about freq correction vector
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2022-04-19 18:18:06 -04:00 |
David Protzman
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90a1bd2d92
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Some lines that were missed earlier related to burst extraction
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2022-04-19 18:17:51 -04:00 |
David Protzman
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e8a11b12c7
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Added comments about the different OFDM symbol counts
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2022-04-19 18:16:47 -04:00 |
David Protzman
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69fa5079a2
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Removed more duplicate constants
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2022-04-19 18:13:43 -04:00 |
David Protzman
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a1146e466b
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Removed duplicate constant
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2022-04-19 18:13:20 -04:00 |
David Protzman
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48d08f5dff
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Now looking at the second symbol for coarse freq offset
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2022-04-19 18:12:57 -04:00 |
David Protzman
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6aafc41f8f
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No longer checking the first OFDM symbol
This symbol isn't present in all drones
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2022-04-19 18:11:35 -04:00 |
David Protzman
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b91cc31947
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Added logic to make sure that all samples are present for each burst
This is to hopefully prevent negative index issues if the burst starts too early or too late in the file
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2022-04-19 17:36:45 -04:00 |
David Protzman
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cbcea2db15
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Now getting sample count of input file for bounds checking
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2022-04-19 17:35:54 -04:00 |
David Protzman
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7eff1d4c40
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Added script to calculate number of samples in a file
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2022-04-19 17:34:53 -04:00 |
David Protzman
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132f2c11c3
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Fixed Octave `endif`
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2022-04-18 23:55:43 -04:00 |
David Protzman
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18ad927c9e
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Added script to tell if running in Octave or not
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2022-04-18 23:55:24 -04:00 |
David Protzman
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3c8a2f6ac0
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Took away warning about Octave not working as it should be fine now
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2022-04-18 23:52:15 -04:00 |
David Protzman
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43949eda91
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Removed use of mustBeMember since it doesn't exist in Octave
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2022-04-18 23:51:48 -04:00 |
David Protzman
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1d25a33db2
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Fixed bug in threshold buffer allocation
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2022-04-18 23:49:38 -04:00 |
David Protzman
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d0a40fc344
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Merge branch 'main' of github.com:proto17/dji_droneid into main
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2022-04-18 22:11:27 -04:00 |
David Protzman
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ca25e074f6
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Updated how the Turbo decoder is called
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2022-04-18 22:11:13 -04:00 |
David Protzman
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5d175d1b3a
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Added more info about magic constant, and now checking for zero'd out CRC results
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2022-04-18 22:00:41 -04:00 |
David Protzman
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b3cabec90c
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Added C++ program to run Turbo decoding
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2022-04-18 21:55:37 -04:00 |
proto17
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2c015b30fd
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Update README.md
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2022-04-15 02:02:44 -04:00 |
proto17
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478f2264e5
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Update README.md
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2022-04-15 01:59:31 -04:00 |
David Protzman
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d7b136fa2d
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Merge branch 'main' of github.com:proto17/dji_droneid into main
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2022-04-15 01:52:31 -04:00 |
David Protzman
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f2e2f577a3
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Added comment about find_zc_indices_by_file not working in Octave yet
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2022-04-15 01:52:07 -04:00 |
David Protzman
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c2e306d9de
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The process_file.m script is now working
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2022-04-15 01:49:04 -04:00 |
David Protzman
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f69655026f
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Added script that finds bursts, and extracts them from files
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2022-04-14 20:59:58 -04:00 |
David Protzman
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88c1556d1c
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Added a script that looks for ZC sequences in the provided file
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2022-04-14 20:59:36 -04:00 |
David Protzman
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689314d926
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Added script to quantize (go from complex to demodulated bits) the QPSK
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2022-04-14 20:59:13 -04:00 |
David Protzman
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650c7935eb
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Moved files to a new directory
Gathering the actually useful scripts into one folder
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2022-04-14 20:58:13 -04:00 |
proto17
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6c613ec0fb
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Update README.md
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2022-04-13 22:51:14 -04:00 |
David Protzman
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e332a41223
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Changed bit mapping to match LTE
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2022-04-13 21:22:50 -04:00 |
David Protzman
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6cd3df3d64
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No need to worry about special demod logic for Octave anymore
The demodulation is done manually by checking the quadrant
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2022-04-13 21:22:21 -04:00 |
David Protzman
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0796033f82
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Merge branch 'main' of github.com:proto17/dji_droneid into main
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2022-04-12 21:19:07 -04:00 |
David Protzman
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3182902b8a
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Added comments and error checking to read_complex_floats.m
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2022-04-12 21:18:50 -04:00 |
proto17
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cfa4fff4d5
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Update README.md
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2022-04-10 11:48:30 -04:00 |
David Protzman
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0dc840945d
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Added function for plotting FFTs
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2022-04-10 11:43:16 -04:00 |
David Protzman
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58ef6b2a94
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Figured out the issue with descrambling
This will need to be updated as it currently only supports descrambling of the first symbol
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2022-04-10 11:40:14 -04:00 |
David Protzman
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ec98000a37
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Now showing 128 bits of descrambled data
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2022-04-10 11:39:26 -04:00 |
David Protzman
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7d61dd22ca
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Now adjusting for 45 degree phase offset
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2022-04-10 11:38:00 -04:00 |
David Protzman
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3f692e7a85
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Adjusting for phase offset based on the ZC correlation
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2022-04-10 11:37:13 -04:00 |
David Protzman
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bf919f8b41
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Merge branch 'main' of github.com:proto17/dji_droneid into main
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2022-04-09 19:23:55 -04:00 |
David Protzman
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c718fcc61a
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Added script to find sample offsets of ZC sequences (MATLAB only ATM)
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2022-04-09 19:23:48 -04:00 |
proto17
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6a559615c9
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Update README.md
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2022-04-09 18:13:00 -04:00 |
proto17
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e79d756a63
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Update README.md
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2022-04-09 18:04:16 -04:00 |
proto17
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cbb11b8ed4
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Update README.md
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2022-04-09 18:01:01 -04:00 |
proto17
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cf29f5da1d
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Update README.md
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2022-04-09 00:41:55 -04:00 |
David Protzman
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50c1ca8a50
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No longer relying on the MATLAB zadoffChuSeq function
This is to maintain support for Octave
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2022-04-09 00:00:11 -04:00 |