| Presentation | 2011-02-25 Study on Spurious Noise in Direct Digital Synthesizer Shinya MURATA, Masayoshi TANAKA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a new type of direct digital synthesizer (DDS) with reduced noise and memory capacity. DDS is an important component in many digital communication systems. Furthermore, DDS is promising as the first stage local oscillation of a frequency up-converter in on-board satellite multi-beam systems. An advanced DDS with few noises is needed for these applications. A conventional DDS contains a Look-up-table (LUT) and generates a sinusoidal wave based on the LUT output after the quantized phase value is applied. Phase quantization brings unwanted spurious and phase noises. Decreasing the noises however requires a large amount of LUT memory capacity. We therefore investigate a phase divided DDS (PD-DDS) with feed-forward control to decrease noises and spurs and as a result show that our proposed DDS provides an excellent spurious and phase noise performance with less memory capacity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DDS / Spurious / Phase-divided DDS / Quantization error / Dithering / Feed-forward control / Phase noise |
| Paper # | SAT2010-84 |
| Date of Issue |
| Conference Information | |
| Committee | SAT |
|---|---|
| Conference Date | 2011/2/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Spurious Noise in Direct Digital Synthesizer |
| Sub Title (in English) | |
| Keyword(1) | DDS |
| Keyword(2) | Spurious |
| Keyword(3) | Phase-divided DDS |
| Keyword(4) | Quantization error |
| Keyword(5) | Dithering |
| Keyword(6) | Feed-forward control |
| Keyword(7) | Phase noise |
| 1st Author's Name | Shinya MURATA |
| 1st Author's Affiliation | Electrical and Electronic Engineering, Graduate School of Industrial Technology, Nihon University() |
| 2nd Author's Name | Masayoshi TANAKA |
| 2nd Author's Affiliation | Electrical and Electronic Engineering, Graduate School of Industrial Technology, Nihon University |
| Date | 2011-02-25 |
| Paper # | SAT2010-84 |
| Volume (vol) | vol.110 |
| Number (no) | 426 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |