| Presentation | 2020-11-19 Example GNU Radio Implementations of Phase Alignment between USRP devices. Tomoya Nakahama, Yoji Yamada, Suguru Kameda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This summary describes example GNU Radio implementations of Python code that uses the USRP Hardware Driver (UHD) to achieve time alignment and phase synchronization between multiple USRPs and daughter boards based on the USRP Hardware Driver and USRP Manual of the Ettus Research. The implementation examples are intended for use with the USRP N200 and X300 series in combination with the SBX or Basic TX/RX daughter board. Sample codes for (a) simultaneous transmit and receive with one USRP, (b) simultaneous phase-aligned receive with two USRPs, and (c) simultaneous transmit and receive with two USRPs are shown as typical examples. This method achieves its goal by specifying the UHD property values, which are not assigned by the GNU Radio Companion (GRC), by using of the UHD Timed Commands. An own processing block for the GRC is developed. It enables the UHD Timed Commands extension on the GRC. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | software defined radio / time alignment / coherent receiver / LO-synchronization / UHD Timed Commands / Python |
| Paper # | SR2020-34 |
| Date of Issue | 2020-11-11 (SR) |
| Conference Information | |
| Committee | SR |
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| Conference Date | 2020/11/18(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Radio, Cognitive Radio, Spectrum Sharing, etc. |
| Chair | Masayuki Ariyoshi(NEC) |
| Vice Chair | Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) |
| Secretary | Suguru Kameda(ATR) / Osamu Takyu(Univ. of Electro-Comm.) / Kentaro Ishidu(Mie Univ.) |
| Assistant | Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Radio |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Example GNU Radio Implementations of Phase Alignment between USRP devices. |
| Sub Title (in English) | |
| Keyword(1) | software defined radio |
| Keyword(2) | time alignment |
| Keyword(3) | coherent receiver |
| Keyword(4) | LO-synchronization |
| Keyword(5) | UHD Timed Commands |
| Keyword(6) | Python |
| 1st Author's Name | Tomoya Nakahama |
| 1st Author's Affiliation | National Institute of Technology, Ishikawa College(NIT, Ishikawa College) |
| 2nd Author's Name | Yoji Yamada |
| 2nd Author's Affiliation | National Institute of Technology, Ishikawa College(NIT, Ishikawa College) |
| 3rd Author's Name | Suguru Kameda |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2020-11-19 |
| Paper # | SR2020-34 |
| Volume (vol) | vol.120 |
| Number (no) | SR-238 |
| Page | pp.pp.74-81(SR), |
| #Pages | 8 |
| Date of Issue | 2020-11-11 (SR) |