forget to insert repo address: https://github.com/JiaoXianjun/LTE-Cell-Scanner
Jiao Xianjun (Ryan) On Sat, Mar 29, 2014 at 7:24 PM, 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 >> > >
