Thank you for your reply.And we know this block do "Estimate channel and coarse frequency offset for OFDM from preambles".And the coarse frequency offset is a integer.And it make the subcarriers cyclic shift.Just illustration as this:
For example,we have 5 subcarriers,cfo=2.
So the channel estimation coefficients will not be zeros.Is it right?
At 2015-01-25 03:38:38, "Martin Braun" <address@hidden> wrote:
>On 01/24/2015 08:43 AM, zs wrote:
>> Now the taps only have values on taps---taps[63-2],and taps
>> taps will be equal to zero.It means that the channel estimation have
>> value 0.It is wrong?
>They will be zero, and it's not wrong. What else should be written here?
>There's no useful information outside the frame.
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