Implementation of the device for receiving ultra-wideband signals based on the STM32 microcontroller
| Jazyk: | ruština |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
walsh sequence
РадиолокаÑионнÑе ÑÐ¸Ð³Ð½Ð°Ð»Ñ Ð Ð°Ð´Ð¸Ð¾Ð»Ð¾ÐºÐ°ÑионнÑе пÑиемники ÐнÑоÑмаÑионнÑе ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ поÑоговÑе ÑÑÑÑойÑÑва preamble single-vibrators ÐоделиÑование пÑеамбÑÐ»Ñ Ð»Ð¾Ð³Ð°ÑиÑмиÑеÑкие деÑекÑоÑÑ ÐонÑÑоллеÑÑ Ð¿ÑогÑаммнÑе logarithmic detectors поÑледоваÑелÑноÑÑÑ ÑолÑа threshold devices одновибÑаÑоÑÑ |
| DOI: | 10.18720/spbpu/3/2021/vr/vr21-2482 |
| Popis: | Ð ÑабоÑе пÑоизведен кÑаÑкий Ð¾Ð±Ð·Ð¾Ñ Ð¸ ÑÑавнение беÑпÑоводной ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ пеÑедаÑи даннÑÑ Ð¡Ð¨Ð Ñ Ð´ÑÑгими беÑпÑоводнÑми ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ñми, бÑла изÑÑена и опÑеделена поÑледоваÑелÑноÑÑÑ Ð´ÐµÐ¹ÑÑвий пÑи подгоÑовке пакеÑа даннÑÑ Ðº пеÑедаÑе. ÐÑло пÑоизведено имиÑаÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸Ñование пÑоÑеÑÑа ÑоÑмиÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð°ÐºÐµÑа, его оÑпÑавки ÑеÑез канал Ñ Ð½Ð°Ð»Ð¾Ð¶ÐµÐ½Ð¸ÐµÐ¼ ÑÑма и далÑнейÑий его пÑием и обÑабоÑка. ÐаÑеÑÑво пеÑедаÑи оÑенивалоÑÑ Ð¿Ð¾ завиÑимоÑÑи биÑовой оÑибки Ð¾Ñ Ð¾ÑноÑÐµÐ½Ð¸Ñ Ñигнал/ÑÑм. ÐÑоведено иÑÑледование и вÑÐ±Ð¾Ñ ÑлеменÑной Ð±Ð°Ð·Ñ Ð½ÐµÐ¾Ð±Ñ Ð¾Ð´Ð¸Ð¼Ð¾Ð¹ Ð´Ð»Ñ ÑеализаÑии пÑиемника. ÐпиÑано пÑеимÑÑеÑÑво Ð´Ð¾Ð±Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² ÑÑ ÐµÐ¼Ñ Ð¾Ð´Ð½Ð¾Ð²Ð¸Ð±ÑаÑоÑа. ÐÑоизведено ÑÑавнение возможноÑÑей нового Ð¿Ð¾ÐºÐ¾Ð»ÐµÐ½Ð¸Ñ Ð¼Ð¸ÐºÑоконÑÑоллеÑов STM32G Ñ Ð¿ÑедÑдÑÑей линейкой микÑоконÑÑоллеÑов STM32F. РазÑабоÑÐ°Ð½Ñ Ð¿ÑинÑипиалÑÐ½Ð°Ñ Ð¸ ÑÑÑÑкÑÑÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ñ ÑÑÑÑойÑÑва, пÑоведена пеÑаÑÑ Ð¿Ð»Ð°ÑÑ Ð¸ монÑаж ÑлеменÑов. РезÑлÑÑаÑом иÑÑледований ÑÑал ÑазÑабоÑаннÑй пÑиемник СШРÑигналов на оÑнове микÑоконÑÑоллеÑа STM32G. ÐÑл ÑазÑабоÑан алгоÑиÑм поиÑка пакеÑа даннÑÑ Ð¿Ð¾ пÑеамбÑле Ð´Ð»Ñ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ пÑиемника, Ñ Ð¿Ð¾ÑледÑÑÑей запиÑÑÑ Ð½Ð° SD-каÑÑÑ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ ÑкÑпеÑименÑÑ Ð¿ÐµÑедаÑи СШРÑигнала в ÑеалÑной ÑÑмовой ÑÑеде. ÐÑÑледована завиÑимоÑÑÑ ÐºÐ°ÑеÑÑва пÑиема по ÑÑÐ¾Ð²Ð½Ñ Ð¿ÑеамбÑÐ»Ñ Ð¾Ñ ÑаÑÑÑоÑÐ½Ð¸Ñ Ð¼ÐµÐ¶Ð´Ñ ÑазÑабоÑаннÑм пÑиемником и пеÑедаÑÑиком и Ð¾Ñ ÐºÐ¾Ð»Ð¸ÑеÑÑва повÑоÑнÑÑ Ð¾ÑпÑавок пакеÑа даннÑÑ . The paper provides a brief overview and comparison of the UWB wire-less data transmission technology with other wireless technologies, and exam-ines and defines the sequence of actions when preparing a data packet for transmission. A simulation of the process of forming a packet, sending it through a channel with noise overlay, and its further reception and processing was performed. The transmission quality was evaluated by the dependence of the bit error on the signal-to-noise ratio. The study and selection of the element base necessary for the implementation of the receiver is carried out. The ad-vantage of adding a single-vibrator to the circuit is described. The capabilities of the new generation of STM32G microcontrollers are compared with the previous line of STM32F microcontrollers. The basic and structural diagrams of the device were developed, the board was printed and the elements were in-stalled. The result of the research was the developed UWB signal receiver based on the STM32G microcontroller. An algorithm was developed to search for a data packet by preamble for this receiver, with subsequent recording to the SD card. Experiments of UWB signal transmission in a real noise envi-ronment are carried out. The dependence of the quality of the reception at the preamble level on the distance between the developed receiver and the trans-mitter and on the number of re-sends of the data packet is investigated. |
| Databáze: | OpenAIRE |
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