Orthogonal frequency-division multiplexing (redirect from COFDM)
single-carrier system. In coded orthogonal frequency-division multiplexing (COFDM), forward error correction (convolutional coding) and time/frequency interleaving...
88 KB (11,256 words) - 17:25, 4 September 2024
8VSB (section 8VSB vs COFDM)
is used primarily in North America; in contrast, the DVB-T standard uses COFDM. A modulation method specifies how the radio signal fluctuates to convey...
14 KB (1,698 words) - 21:39, 25 April 2024
Single-frequency network (section OFDM and COFDM)
broadcasting, self-interference cancellation is facilitated by the OFDM or COFDM modulation method. OFDM uses a large number of slow low-bandwidth modulators...
10 KB (1,348 words) - 18:53, 11 June 2024
spectral masks for the same purpose. Many digital modulation methods such as COFDM use the electromagnetic spectrum very efficiently, allowing for a very tight...
3 KB (338 words) - 13:25, 7 February 2024
designator for COFDM is W7D. The W7D comes from Paragraph 40 of the November 13, 2002, ET Docket 01-75 R&O. It is only coincidence that the QAM and COFDM emission...
12 KB (1,024 words) - 18:40, 22 August 2024
transport stream, using coded orthogonal frequency-division multiplexing (COFDM or OFDM) modulation. It is also the format widely used worldwide (including...
36 KB (3,880 words) - 10:56, 25 September 2024
Radio modulation AM FM COFDM Frequency allocations LW (LF) MW (MF) SW (HF) VHF (low / mid / high) L band (UHF) Digital systems CAM-D DAB/DAB+ DRM/DRM+...
35 KB (3,934 words) - 18:40, 8 September 2024
and TiMi 3. DVB-T uses coded orthogonal frequency division multiplexing (COFDM), which uses as many as 8000 independent carriers, each transmitting data...
47 KB (5,132 words) - 14:44, 29 September 2024
Philips since 1989. This codec incorporated into a broadcasting system using COFDM modulation was demonstrated on air and in the field with Radio Canada and...
108 KB (11,590 words) - 04:53, 1 October 2024