{"id":103001,"date":"2022-01-18T15:36:45","date_gmt":"2022-01-18T13:36:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d0%b2%d1%8b%d0%bf%d1%83%d1%81%d0%ba-gnu-radio-3-10-0"},"modified":"2022-01-18T15:36:45","modified_gmt":"2022-01-18T13:36:45","slug":"%d0%b2%d1%8b%d0%bf%d1%83%d1%81%d0%ba-gnu-radio-3-10-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/%d0%b2%d1%8b%d0%bf%d1%83%d1%81%d0%ba-gnu-radio-3-10-0","title":{"rendered":"Vyd\u00e1n\u00ed GNU Radio 3.10.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Po roce v\u00fdvoje byl vytvo\u0159en nov\u00fd v\u00fdznamn\u00fd vyd\u00e1n\u00ed voln\u00e9 platformy pro digit\u00e1ln\u00ed zpracov\u00e1n\u00ed sign\u00e1l\u016f GNU Radio 3.10. Platforma zahrnuje sadu program\u016f a knihoven, kter\u00e9 umo\u017e\u0148uj\u00ed vytv\u00e1\u0159et libovoln\u00e9 r\u00e1diov\u00e9 syst\u00e9my, sch\u00e9mata modulace a formy p\u0159ij\u00edman\u00fdch a odes\u00edlan\u00fdch sign\u00e1l\u016f, kter\u00e9 jsou definov\u00e1ny programov\u011b, a pro zachycov\u00e1n\u00ed a generaci sign\u00e1l\u016f pou\u017e\u00edvaj\u00ed nejjednodu\u0161\u0161\u00ed hardware. Projekt je distribuov\u00e1n pod licenc\u00ed GPLv3. K\u00f3d v\u011bt\u0161iny komponent GNU Radio je naps\u00e1n v jazyce Python, zat\u00edmco \u010d\u00e1sti kritick\u00e9 pro v\u00fdkon a latenci jsou naps\u00e1ny v jazyce C++, co\u017e umo\u017e\u0148uje pou\u017eit\u00ed bal\u00edku p\u0159i \u0159e\u0161en\u00ed \u00faloh v re\u00e1ln\u00e9m \u010dase. <\/p>\n
V kombinaci s univerz\u00e1ln\u00edmi programovateln\u00fdmi p\u0159ij\u00edma\u010di a vys\u00edla\u010di, kter\u00e9 nejsou v\u00e1z\u00e1ny na frekven\u010dn\u00ed p\u00e1smo a typ modulace sign\u00e1lu, m\u016f\u017ee b\u00fdt platforma vyu\u017eita k vytvo\u0159en\u00ed za\u0159\u00edzen\u00ed, jako jsou z\u00e1kladnov\u00e9 stanice pro s\u00edt\u011b GSM, za\u0159\u00edzen\u00ed pro d\u00e1lkov\u00e9 \u010dten\u00ed RFID \u0161t\u00edtk\u016f (elektronick\u00e9 identifik\u00e1tory a pr\u016fkazy, smart karty), GPS p\u0159ij\u00edma\u010de, WiFi, p\u0159ij\u00edma\u010de a vys\u00edla\u010de FM r\u00e1dia, TV dekod\u00e9ry, pasivn\u00ed radary, spektr\u00e1ln\u00ed analyz\u00e1tory a podobn\u011b. Krom\u011b USRP m\u016f\u017ee bal\u00edk pou\u017e\u00edvat i dal\u0161\u00ed hardwarov\u00e9 komponenty pro vstup a v\u00fdstup sign\u00e1l\u016f, nap\u0159\u00edklad jsou dostupn\u00e9 ovlada\u010de pro zvukov\u00e9 karty, TV tunery, za\u0159\u00edzen\u00ed BladeRF, Myriad-RF, HackRF, UmTRX, Softrock, Comedi, Funcube, FMCOMMS, USRP a S-Mini. <\/p>\n
Sou\u010d\u00e1st\u00ed je tak\u00e9 sb\u00edrka filtr\u016f, kan\u00e1lov\u00fdch kodek\u016f, synchroniza\u010dn\u00edch modul\u016f, demodul\u00e1tor\u016f, ekvaliz\u00e9r\u016f, hlasov\u00fdch kodek\u016f, dekod\u00e9r\u016f a dal\u0161\u00edch prvk\u016f pot\u0159ebn\u00fdch pro vytv\u00e1\u0159en\u00ed r\u00e1diov\u00fdch syst\u00e9m\u016f. Tyto prvky mohou b\u00fdt pou\u017eity jako cihly pro sestaven\u00ed hotov\u00e9ho syst\u00e9mu, co\u017e v kombinaci s mo\u017enostmi definov\u00e1n\u00ed datov\u00fdch tok\u016f mezi bloky umo\u017e\u0148uje navrhovat r\u00e1diov\u00e9 syst\u00e9my i bez znalost\u00ed programov\u00e1n\u00ed. <\/p>\n
Hlavn\u00ed zm\u011bny: <\/p>\n
\n
Byl p\u0159id\u00e1n nov\u00fd modul gr-pdu, do kter\u00e9ho byly p\u0159esunuty n\u00e1stroje pro manipulaci s objekty typu PDU (Protocol Data Unit), pou\u017e\u00edvan\u00fdm pro data p\u0159en\u00e1\u0161en\u00e1 mezi bloky GNU Radio. Ze modulu gr-blocks byly v\u0161echny bloky PDU p\u0159esunuty do modul\u016f gr-network a gr-pdu, a m\u00edsto gr-blocks byla ponech\u00e1na vrstva pro zaji\u0161t\u011bn\u00ed zp\u011btn\u00e9 kompatibility. Vektorov\u00e9 typy PDU jsou nyn\u00ed dostupn\u00e9 v prostoru jmen gr::types, a funkce pro manipulaci s PDU \u2014 v prostoru jmen gr::pdu.\n
Byl p\u0159id\u00e1n nov\u00fd modul gr-iio, kter\u00fd poskytuje r\u00e1mec pro vstup\/v\u00fdstup pro organizaci v\u00fdm\u011bny dat mezi GNU Radio a pr\u016fmyslov\u00fdmi za\u0159\u00edzen\u00edmi zalo\u017een\u00fdmi na subsyst\u00e9mu IIO (Industrial I\/O), jako jsou PlutoSDR, AD-FMCOMMS2-EBZ, AD-FMCOMMS3-EBZ, AD-FMCOMMS4-EBZ, ARRADIO a AD-FMCOMMS5-EBZ.\n
Byla zavedena experiment\u00e1ln\u00ed podpora t\u0159\u00eddy Custom Buffer, kter\u00e1 zjednodu\u0161uje p\u0159enos dat mezi bloky GNU Radio a hardwarov\u00fdmi akceler\u00e1tory zalo\u017een\u00fdmi na GPU, FPGA a DSP. Pou\u017eit\u00ed custom_buffer umo\u017e\u0148uje vyhnout se psan\u00ed speci\u00e1ln\u00edch blok\u016f pro vyu\u017eit\u00ed akcelerace na stran\u011b GPU a umo\u017e\u0148uje p\u0159\u00edmo p\u0159esouvat data z kruhov\u00e9ho bufferu GNU Radio do pam\u011bti GPU, spou\u0161t\u011bt j\u00e1dra CUDA a vracet data s v\u00fdsledkem do buffer\u016f GNU Radio.\n
Infrastruktura pro veden\u00ed log\u016f byla p\u0159evedena na pou\u017eit\u00ed knihovny spdlog, co\u017e zv\u00fd\u0161ilo pohodl\u00ed pr\u00e1ce s logy, odstranilo vol\u00e1n\u00ed iostream a cstdio, zajistilo podporu v\u00fdraz\u016f libfmt pro form\u00e1tov\u00e1n\u00ed \u0159et\u011bzc\u016f a modernizovalo programov\u00e9 rozhran\u00ed. D\u0159\u00edve pou\u017e\u00edvan\u00e1 knihovna Log4CPP byla odstran\u011bna ze z\u00e1vislost\u00ed.\n
Byl proveden p\u0159echod na pou\u017eit\u00ed standardu C++17 p\u0159i v\u00fdvoji. Knihovna boost::filesystem byla nahrazena std::filesystem.\n
Byly zv\u00fd\u0161eny n\u00e1roky na p\u0159eklada\u010de (GCC 9.3, Clang 11, MSVC 1916) a z\u00e1vislosti (Python 3.6.5, numpy 1.17.4, VOLK 2.4.1, CMake 3.16.3, Boost 1.69, Mako 1.1.0, PyBind11 2.4.3, pygccxml 2.0.0).\n
Byly p\u0159id\u00e1ny Pythonov\u00e9 vazby pro bloky RFNoC.\n
Do blok\u016f pro vytv\u00e1\u0159en\u00ed grafick\u00e9ho rozhran\u00ed gr-qtgui byla p\u0159id\u00e1na podpora Qt 6.2. Do grafick\u00e9ho rozhran\u00ed GRC (GNU Radio Companion) byla p\u0159id\u00e1na mo\u017enost \u201e-output\u201c pro hierarchick\u00e9 bloky. <\/ul>\n