| Presentation | 2021-11-04 SDR Implementation of Analog FM Broadcast Multipath Filter Kenji Rikitake, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Reduction of the reception degradation caused by multipath propagation is essential for the high-quality reception of analog FM broadcast. Previous reports show adaptive filters effectively solve this issue, but the implementation details are not well-described. In this report, the author explains the details of an open-source SDR implementation that applies a complex NLMS filter to the IF output developed by the author. The author also describes the critical points to consider for the development and the evaluation of the improved reception results by the multipath filter. Experiments showed that the proposed multipath filter reduced the THD+N of an 880Hz time tone signal broadcast from 1.22% to 0.33% and that the multipath filter effectively improved the reception quality for simple antenna installations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multipath / adaptive filter / FM broadcast / SDR |
| Paper # | SR2021-43 |
| Date of Issue | 2021-10-28 (SR) |
| Conference Information | |
| Committee | SR |
|---|---|
| Conference Date | 2021/11/4(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Defined Radio, Cognitive Radio, Spectrum Shareing, etc. |
| Chair | Suguru Kameda(Hiroshima Univ.) |
| Vice Chair | Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) |
| Secretary | Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokai Univ.) / Kazuto Yano(NTT) |
| Assistant | Mai Ohta(Fukuoka Univ.) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) |
| Paper Information | |
| Registration To | Technical Committee on Smart Radio |
|---|---|
| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | SDR Implementation of Analog FM Broadcast Multipath Filter |
| Sub Title (in English) | |
| Keyword(1) | Multipath |
| Keyword(2) | adaptive filter |
| Keyword(3) | FM broadcast |
| Keyword(4) | SDR |
| 1st Author's Name | Kenji Rikitake |
| 1st Author's Affiliation | Kenji Rikitake Professional Engineer's Office/Pepabo R&D Institute, GMO Pepabo, Inc.(KRPEO/Pepabo R&D Institute) |
| Date | 2021-11-04 |
| Paper # | SR2021-43 |
| Volume (vol) | vol.121 |
| Number (no) | SR-227 |
| Page | pp.pp.17-24(SR), |
| #Pages | 8 |
| Date of Issue | 2021-10-28 (SR) |