Re: Implementing SSB-ASK in DSP


Hi,

actually i am also looking into implementing the ssb-ask weaver method in
DSP processor. It looks like hilbert in TI for eg. takes around 1200
cycles for a window of 32 samples.

Perhaps multiplication with sine and cosine will be more efficient in
dsp.

Thanks anyway.



>seankuay wrote:
>> Hi Experts,
>>
>> I am pretty new to DSP system (few days old). Currently i am trying out
a
>> lecture assignment on implementing SSB-ASK in DSP processor in digital
>> domain. I am implementing in the +/- 900Mhz range, data rate around
100
>> kbps.
>>
>> My problem now is i need to generate a pair of I/Q stream in to the RF
>> module with frequency hopping enabled. In order to perform this, i need
to
>> have a block to perform phase shift of 90 degrees, which i believe
should
>> be hilbert transform.
>>
>> I would like to know whether this kind of implementation is possible
and
>> practical using the DSP platform. Where can i find more information
about
>> hilbert transform in dsp?
>>
>> Thanks.
>>
>>
>Yahoo?
>AltaVista (same as Yahoo, but I'm used to the interface)?
>The eternal classic Google?
>
>In AltaVista the answer is: +"hilbert transform" +DSP
>
>--
>
>Tim Wescott
>Wescott Design Services
>http://www.wescottdesign.com
>


.

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