802.11b standard use barker spreading, So if you want to receive data
from a standard 802.11b transmitter you have to use barker. For
decimation it should be as high as possible because 802.11b receiver
needs more more than 22M complex sample per sec to work correctly. But
USB cannot handle that much bit-rate so we have to downsample it to
8McSps. This reduces SNR which reduces receiver performance and range
Quoting yyzhuang [email protected]:
input_rate = 8000000
Spreading. How should we know what decimation rate and spreading to use?
Samples per data bit = 8
250kHz, etc). To get down to baseband, the resultant signal is then
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----- End forwarded message -----
Mohammad Hamed F.
ECE Department, U of Utah
Salt Lake City