Reply by Vladimir Vassilevsky●September 23, 20092009-09-23
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
Reply by Rune Allnor●September 23, 20092009-09-23
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
Reply by wirelessor●September 23, 20092009-09-23
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.