Hi Dimitri, Now I have committed a new revision: commit 9a143636288f573fd93e1ca0feb4876b7d75dedd In which I think -c option is working now. at least for your captured file. (please pull all captured file from git, because header information is added to those files)
works: ./CellSearch --loadbin ../../test/1815e6.bin ./CellSearch --loadbin ../../test/1815e6.bin -c 0.99996313297134364895 Other improvements: 0. frequency offset searching range is changed automatically (to the same with original range of twist mode) when there is only one carrier frequency specified. 1. add header information (mainly frequency information currently) into captured bin files, then frequency can be recognized when captured file is used (needn't specify explicitly). 2. now --loadbin --recbin -r -l and their cross usages are supported much better (I think). If you want, you may test this revision. Any issues, would you please tell me? Appreciate! BR Jiao Xianjun On Sat, Mar 29, 2014 at 8:37 PM, Jiao Xianjun <[email protected]> wrote: > Thanks a lot. > > I didn't care about "-c" option for a long time.... There may be an issue. > > I will check it later. (Or, if you want, maybe you can contribute?). > > BR > > Jiao xianjun (Ryan) > > > > On Sat, Mar 29, 2014 at 8:29 PM, Dimitri Stolnikov <[email protected]>wrote: > >> Jiao, >> >> -t works >> >> ./CellSearch -s 1815e6 -t >> >> OpenCL LTE CellSearch v1.1.0 (release) beginning. 1.0 to 1.1: >> TDD/OpenCL/ext-LNB/faster added by Jiao Xianjun([email protected]) >> Search frequency: 1815 MHz >> PPM: 120 >> correction: 1 >> Found Elonics E4000 tuner >> OpenCL: number of platforms 1 >> Platform 0 NAME: AMD Accelerated Parallel Processing >> Platform 0 PROFILE: FULL_PROFILE >> OpenCL: number of devices 2 >> Platform 0 Device 0 NAME: Tahiti >> Platform 0 Device 0 PROFILE: FULL_PROFILE >> Platform 0 Device 0 LOCAL_MEM_SIZE: 32768 >> Platform 0 Device 0 MAX_CLOCK_FREQUENCY: 975 >> Platform 0 Device 0 MAX_COMPUTE_UNITS: 24 >> Platform 0 Device 0 PREFERRED_VECTOR_WIDTH_FLOAT: 1 >> Examining center frequency 1815 MHz ... try 0 >> 6RB filter cost 0.0367889s >> PSS XCORR cost 9.71848s >> Detected a FDD cell! At freqeuncy 1815MHz, try 0 >> cell ID: 261 >> PSS ID: 0 >> RX power level: -13.6741 dB >> residual frequency offset: -69682.9 Hz >> k_factor: 1.00004 >> Detected a FDD cell! At freqeuncy 1815MHz, try 0 >> cell ID: 263 >> PSS ID: 2 >> RX power level: -14.2563 dB >> residual frequency offset: -69682.9 Hz >> k_factor: 1.00004 >> Detected the following cells: >> DPX:TDD/FDD; A: #antenna ports C: CP type ; P: PHICH duration ; PR: PHICH >> resource type >> DPX CID A fc foff RXPWR C nRB P PR CrystalCorrectionFactor >> FDD 261 2 1815M -69.7k -13.7 N 100 N one 0.99996160866444450122 >> FDD 263 2 1815M -69.7k -14.3 N 100 N one 0.99996160870007821941 >> >> as does the scan mode >> >> ./CellSearch --freq-start 1814.9e6 --freq-end 1815.1e6 --opencl-device=1 >> >> OpenCL LTE CellSearch v1.1.0 (release) beginning. 1.0 to 1.1: >> TDD/OpenCL/ext-LNB/faster added by Jiao Xianjun([email protected]) >> Search frequency range: 1814.9-1815.1 MHz >> >> Found Elonics E4000 tuner >> OpenCL: number of platforms 1 >> Platform 0 NAME: AMD Accelerated Parallel Processing >> Platform 0 PROFILE: FULL_PROFILE >> OpenCL: number of devices 2 >> Platform 0 Device 1 NAME: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz >> Platform 0 Device 1 PROFILE: FULL_PROFILE >> Platform 0 Device 1 LOCAL_MEM_SIZE: 32768 >> Platform 0 Device 1 MAX_CLOCK_FREQUENCY: 3199 >> >> Platform 0 Device 1 MAX_COMPUTE_UNITS: 4 >> Platform 0 Device 1 PREFERRED_VECTOR_WIDTH_FLOAT: 8 >> Examining center frequency 1814.9 MHz ... try 0 >> 6RB filter cost 0.00319004s >> PSS XCORR cost 0.845281s >> Detected a FDD cell! At freqeuncy 1814.9MHz, try 0 >> cell ID: 261 >> PSS ID: 0 >> RX power level: -15.553 dB >> residual frequency offset: 31977.3 Hz >> k_factor: 1.00004 >> Detected a FDD cell! At freqeuncy 1814.9MHz, try 0 >> cell ID: 263 >> PSS ID: 2 >> RX power level: -16.3697 dB >> residual frequency offset: 31976.5 Hz >> k_factor: 1.00004 >> >> Examining center frequency 1815 MHz ... try 0 >> 6RB filter cost 0.00298405s >> PSS XCORR cost 0.826245s >> Examining center frequency 1815.1 MHz ... try 0 >> 6RB filter cost 0.00295711s >> PSS XCORR cost 0.827149s >> Detected the following cells: >> DPX:TDD/FDD; A: #antenna ports C: CP type ; P: PHICH duration ; PR: PHICH >> resource type >> DPX CID A fc foff RXPWR C nRB P PR CrystalCorrectionFactor >> FDD 261 2 1814.9M 32k -15.6 N 100 N one 1.0000401594555023976 >> FDD 263 2 1814.9M 32k -16.4 N 100 N one 1.0000401594555023976 >> >> >> ./CellSearch --freq-start 1814.9e6 --freq-end 1815.1e6 --opencl-device=0 >> >> OpenCL LTE CellSearch v1.1.0 (release) beginning. 1.0 to 1.1: >> TDD/OpenCL/ext-LNB/faster added by Jiao Xianjun([email protected]) >> Search frequency range: 1814.9-1815.1 MHz >> >> Found Elonics E4000 tuner >> OpenCL: number of platforms 1 >> Platform 0 NAME: AMD Accelerated Parallel Processing >> Platform 0 PROFILE: FULL_PROFILE >> OpenCL: number of devices 2 >> Platform 0 Device 0 NAME: Tahiti >> Platform 0 Device 0 PROFILE: FULL_PROFILE >> Platform 0 Device 0 LOCAL_MEM_SIZE: 32768 >> Platform 0 Device 0 MAX_CLOCK_FREQUENCY: 975 >> Platform 0 Device 0 MAX_COMPUTE_UNITS: 24 >> Platform 0 Device 0 PREFERRED_VECTOR_WIDTH_FLOAT: 1 >> Examining center frequency 1814.9 MHz ... try 0 >> 6RB filter cost 0.0368021s >> PSS XCORR cost 3.31654s >> Detected a FDD cell! At freqeuncy 1814.9MHz, try 0 >> cell ID: 261 >> PSS ID: 0 >> RX power level: -15.6869 dB >> residual frequency offset: 32106.7 Hz >> k_factor: 1.00004 >> Detected a FDD cell! At freqeuncy 1814.9MHz, try 0 >> cell ID: 263 >> PSS ID: 2 >> RX power level: -16.3225 dB >> residual frequency offset: 32106.2 Hz >> k_factor: 1.00004 >> >> Examining center frequency 1815 MHz ... try 0 >> 6RB filter cost 0.0158181s >> PSS XCORR cost 3.32913s >> Examining center frequency 1815.1 MHz ... try 0 >> 6RB filter cost 0.0158079s >> PSS XCORR cost 3.27762s >> Detected the following cells: >> DPX:TDD/FDD; A: #antenna ports C: CP type ; P: PHICH duration ; PR: PHICH >> resource type >> DPX CID A fc foff RXPWR C nRB P PR CrystalCorrectionFactor >> FDD 261 2 1814.9M 32.1k -15.7 N 100 N one 1.0000398256225293547 >> FDD 263 2 1814.9M 32.1k -16.3 N 100 N one 1.0000398256225293547 >> >> >> But single frequency detection seems to be broken even if i provide the >> freq correction via -c. >> >> Capture attached. >> >> >> Best regards, >> Dimitri >> >> >> On Sat, 29 Mar 2014 13:17:38 +0100, Jiao Xianjun <[email protected]> >> wrote: >> >> Hi, >>> >>> Very thanks! >>> >>> I think one possible reason is that I narrow the frequency offset >>> searching >>> range from about -200:5:200kHz to -50:5:50 kHz. Because the scanner now >>> use >>> .1MHz step, why not get rid of extra searching? >>> >>> You may try "--freq-start 1814.9e6 --freq-end 1815.1e6" to verify that. >>> >>> But the sample is definitely useful. Would you please capture the bin >>> file >>> for me? (You may find the method in README). >>> >>> And, >>> >>> Would you please also try to use "-t" option for the new Scanner (without >>> --freq-start and --freq-end) and try again? ("-t" force the scanner into >>> original mode). >>> >>> BR >>> >>> Jiao Xianjun(Ryan) >>> >>> >>> On Sat, Mar 29, 2014 at 8:08 PM, Dimitri Stolnikov <[email protected]> >>> wrote: >>> >>> Hi Jiao, >>>> >>>> first of all, thanks a lot for sharing your work! >>>> >>>> I've tried it, but for some reason it fails to find the local cell here: >>>> >>>> LTE-Cell-Scanner/build/src$ ./CellSearch -s 1815e6 --opencl-device=1 >>>> OpenCL LTE CellSearch v1.1.0 (release) beginning. 1.0 to 1.1: >>>> TDD/OpenCL/ext-LNB/faster added by Jiao Xianjun([email protected]) >>>> Search frequency: 1815 MHz >>>> Found Elonics E4000 tuner >>>> OpenCL: number of platforms 1 >>>> Platform 0 NAME: AMD Accelerated Parallel Processing >>>> Platform 0 PROFILE: FULL_PROFILE >>>> OpenCL: number of devices 2 >>>> Platform 0 Device 1 NAME: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz >>>> Platform 0 Device 1 PROFILE: FULL_PROFILE >>>> Platform 0 Device 1 LOCAL_MEM_SIZE: 32768 >>>> Platform 0 Device 1 MAX_CLOCK_FREQUENCY: 3399 >>>> Platform 0 Device 1 MAX_COMPUTE_UNITS: 4 >>>> Platform 0 Device 1 PREFERRED_VECTOR_WIDTH_FLOAT: 8 >>>> Examining center frequency 1815 MHz ... try 0 >>>> 6RB filter cost 0.00318098s >>>> PSS XCORR cost 0.833934s >>>> No LTE cells were found... >>>> >>>> LTE-Cell-Scanner/build/src$ ./CellSearch -s 1815e6 >>>> OpenCL LTE CellSearch v1.1.0 (release) beginning. 1.0 to 1.1: >>>> TDD/OpenCL/ext-LNB/faster added by Jiao Xianjun([email protected]) >>>> Search frequency: 1815 MHz >>>> Found Elonics E4000 tuner >>>> OpenCL: number of platforms 1 >>>> Platform 0 NAME: AMD Accelerated Parallel Processing >>>> Platform 0 PROFILE: FULL_PROFILE >>>> OpenCL: number of devices 2 >>>> Platform 0 Device 0 NAME: Tahiti >>>> Platform 0 Device 0 PROFILE: FULL_PROFILE >>>> Platform 0 Device 0 LOCAL_MEM_SIZE: 32768 >>>> Platform 0 Device 0 MAX_CLOCK_FREQUENCY: 975 >>>> Platform 0 Device 0 MAX_COMPUTE_UNITS: 24 >>>> Platform 0 Device 0 PREFERRED_VECTOR_WIDTH_FLOAT: 1 >>>> Examining center frequency 1815 MHz ... try 0 >>>> 6RB filter cost 0.0368459s >>>> PSS XCORR cost 3.36666s >>>> No LTE cells were found... >>>> >>>> When i run the original program eit does receive the cell: >>>> >>>> ./CellSearch -s 1815e6 >>>> LTE CellSearch v1.0.0 (release) beginning >>>> Search frequency: 1815 MHz >>>> PPM: 120 >>>> correction: 1 >>>> Found Elonics E4000 tuner >>>> Examining center frequency 1815 MHz ... >>>> Detected a cell! >>>> cell ID: 263 >>>> RX power level: -15.8443 dB >>>> residual frequency offset: -68142.8 Hz >>>> Detected a cell! >>>> cell ID: 261 >>>> RX power level: -17.8496 dB >>>> residual frequency offset: -68142.3 Hz >>>> Detected the following cells: >>>> A: #antenna ports C: CP type ; P: PHICH duration ; PR: PHICH resource >>>> type >>>> CID A fc foff RXPWR C nRB P PR CrystalCorrectionFactor >>>> 263 2 1815M -68.1k -15.8 N 100 N one 0.99996245719114640327 >>>> 261 2 1815M -68.1k -17.8 N 100 N one 0.99996245745901013446 >>>> >>>> >>>> >>>> How can i help you to debug this? Do you require a capture of this cell? >>>> >>>> Best regards, >>>> Dimitri >>>> >>>> >>>> >>>> On Sat, 29 Mar 2014 12:24:21 +0100, Jiao Xianjun <[email protected]> >>>> wrote: >>>> >>>> Hello there, >>>> >>>>> >>>>> >>>>> New features coming: >>>>> >>>>> 1. Now MATLAB isn't needed. All in C/C++. All you need are rtl-sdr >>>>> dongle >>>>> and Linux computer. TDD and FDD are both supported. External LNB/Mixer >>>>> (allow mixer and A/D use non-coherent clock sources) is also supported. >>>>> >>>>> 2. OpenCL parallel computation is supported! It searches per frequency >>>>> point in >>>>> >>>>> 0.5s (desktop i7-3930K 6 [email protected]) 22x faster! >>>>> or 2~3s (ThinkPad T410 i5 CPU [email protected]). >>>>> >>>>> Intel, AMD and Nvidia OpenCL SDK are tested. Acceleration ratio is >>>>> gotten >>>>> by Intel SDK. >>>>> >>>>> Nvidia GPU hasn't reached so amazing acceleration ratio. It maybe >>>>> because >>>>> of slow PCI-E and memory. I haven't found time to optimize on that. >>>>> >>>>> Another open source OpenCL lib pocl - Portable Computing Language ( >>>>> https://github.com/pocl/pocl) is also tested, and it seems as fast as >>>>> Intel's! (See video I attached in the end.) >>>>> >>>>> 3. Some improvements on algorithm. Higher sensitivity and more robust. >>>>> >>>>> video: http://www.youtube.com/watch?v=SxZzEVEKuRs >>>>> (in china) http://pan.baidu.com/s/1o6qbLGY >>>>> >>>>> Have fun with LTE. Have fun with OpenCL! >>>>> >>>>> BR >>>>> >>>>> Jiao Xianjun (Ryan) >>>>> >>>>> >>>>> >>>>> On Wed, Feb 19, 2014 at 11:21 PM, Jiao Xianjun <[email protected]> >>>>> wrote: >>>>> >>>>> Hi there, >>>>> >>>>>> >>>>>> As LTE-Cell-Scanner doesn't support TDD mode: >>>>>> https://github.com/Evrytania/LTE-Cell-Scanner >>>>>> >>>>>> I fork LTE-Cell-Scanner and add TDD support to it: >>>>>> https://github.com/JiaoXianjun/LTE-Cell-Scanner >>>>>> (Not reviewed by James Peroulas, so it is just experimental >>>>>> currently.) >>>>>> >>>>>> It works fine with rtl-sdr E4k tuner dongle below 2.2GHz, but doesn't >>>>>> work >>>>>> in 2.5~2.7GHz even with external MMDS-LNB. >>>>>> >>>>>> Because the algorithm assumes analytic relationship between carrier >>>>>> and >>>>>> sampling frequency error. >>>>>> >>>>>> I write some matlab scripts (https://github.com/ >>>>>> JiaoXianjun/rtl-sdr-LTE) >>>>>> to separate carrier and sampling processing in algorithm. Aided by >>>>>> MMDS-LNB, the scripts can detect TDD&FDD LTE cell in 2.5~2.7GHz now! >>>>>> >>>>>> 12 LTE Cells information are decoded. 2 are FDD LTE, the rest are >>>>>> TD-LTE. >>>>>> Because here is China! (Partly because that TD-LTE is announed earier >>>>>> than >>>>>> FDD by government) >>>>>> >>>>>> Hope that in the future these features can be merged to original >>>>>> LTE-Cell-Scanner. >>>>>> >>>>>> Scanning results and video are attached. >>>>>> http://www.youtube.com/watch?v=4zRLgxzn4Pc >>>>>> >>>>> >
