| 发明名称 | Modulation and demodulation method for satellite communication using widespread signal-to-noise ratio (SNR) | ||
| 摘要 | Provided are a modulation method and a demodulation method for satellite communication using a widespread signal-to-noise ratio (SNR), the method including: adding a dummy frame to a broadcasting/communication signal frame for signal transmission of a digital video broadcasting-satellite second generation (DVB-S2) modulator; verifying a spreading factor; adding the same physical layer header to the broadcasting/communication signal frame to which the dummy frame is added, repeatedly the number of times corresponding to the verified spreading factor; and repeating the same data, for example, PL frame data as the physical layer header. | ||
| 申请公布号 | US9025639(B2) | 申请公布日期 | 2015.05.05 |
| 申请号 | US201313754436 | 申请日期 | 2013.01.30 |
| 申请人 | Electronics and Telecommunications Research Institute | 发明人 | Kim Pan Soo;Oh Deock Gil |
| 分类号 | H04B1/00;H04B1/7097;H04N21/2383;H04N21/438;H04L1/00;H04L1/08 | 主分类号 | H04B1/00 |
| 代理机构 | Ladas & Parry LLP | 代理人 | Ladas & Parry LLP |
| 主权项 | 1. An operation method of a modulator in which a band spreading function is added, the method comprising: adding a dummy frame to a broadcasting/communication signal frame for signal transmission of a digital video broadcasting-satellite second generation (DVB-S2) modulator; verifying a spreading factor; and adding the same physical layer header to the broadcasting/communication signal frame to which the dummy frame is added, repeatedly the number of times being equal to the verified spreading factor. | ||
| 地址 | Daejeon KR | ||