OFDM frame equalizer. More...
#include <ofdm_frame_equalizer_vcvc.h>
Public Types | |
| typedef boost::shared_ptr < ofdm_frame_equalizer_vcvc > | sptr |
Static Public Member Functions | |
| static sptr | make (ofdm_equalizer_base::sptr equalizer, int cp_len, const std::string &len_tag_key="frame_len", bool propagate_channel_state=false, int fixed_frame_len=0) |
Detailed Description
OFDM frame equalizer.
Performs equalization in one or two dimensions on a tagged OFDM frame.
This does two things: First, it removes the coarse carrier offset. If a tag is found on the first item with the key 'ofdm_sync_carr_offset', this is interpreted as the coarse frequency offset in number of carriers. Next, it performs equalization in one or two dimensions on a tagged OFDM frame. The actual equalization is done by a ofdm_frame_equalizer object, outside of the block.
Note that the tag with the coarse carrier offset is not removed. Blocks downstream from this block must not attempt to also correct this offset.
Input: a tagged series of OFDM symbols. Output: The same as the input, but equalized and frequency-corrected.
Member Typedef Documentation
Member Function Documentation
| static sptr gr::digital::ofdm_frame_equalizer_vcvc::make | ( | ofdm_equalizer_base::sptr | equalizer, |
| int | cp_len, | ||
| const std::string & | len_tag_key = "frame_len", |
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| bool | propagate_channel_state = false, |
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| int | fixed_frame_len = 0 |
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| ) | [static] |
- Parameters:
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equalizer The equalizer object that will do the actual work cp_len Length of the cyclic prefix in samples (required to correct the frequency offset) len_tag_key Length tag key propagate_channel_state If true, the channel state after the last symbol will be added to the first symbol as a tag fixed_frame_len Set if the frame length is fixed throughout, helps with book keeping.
The documentation for this class was generated from the following file:
