Sampling phase error

Hi, all.

I have a problem to compensate "sampling phase error"

In spectrum analyzer, I get the sampling data from analog signal to OFDM
signal.

but I knew that there is sampling phase error.

I mean, sampled data can be expressed as y[0], y[1], y[2].....for time
domain signal.

but, it is not exact point. In some processing sampled data with C
language,

there were some phase error. That is, for example, exact sampling point is
y[0.4], y[1.4], y[2.4]....

how can I recover the phase error with OFDM signal? [(ex) y[0] -> y[0.4)]

I can not control it in Spectrum analyzer. 

I should recover it with only using the sampled data.

On 23 Sep, 13:22, "wirelessor" <wireles...@gmail.com> wrote:

> but I knew that there is sampling phase error.
>
> I mean, sampled data can be expressed as y[0], y[1], y[2].....for time
> domain signal.
>
> but, it is not exact point. In some processing sampled data with C
> language,

Ah. There's your error. You should have used assmbly. Or matlab.

Rune

wirelessor wrote:

> Hi, all.
> 
> I have a problem to compensate "sampling phase error"
> 
> In spectrum analyzer, I get the sampling data from analog signal to OFDM
> signal.
> 
> but I knew that there is sampling phase error.
> 
> I mean, sampled data can be expressed as y[0], y[1], y[2].....for time
> domain signal.
> 
> but, it is not exact point. In some processing sampled data with C
> language,
> 
> there were some phase error. That is, for example, exact sampling point is
> y[0.4], y[1.4], y[2.4]....
> 
> how can I recover the phase error with OFDM signal? [(ex) y[0] -> y[0.4)]
> 
> I can not control it in Spectrum analyzer. 
> 
> I should recover it with only using the sampled data.

Hey studiot: "Interpolation" is the keyword.


VLV