diff options
| author | Thomas Tsou <tom@tsou.cc> | 2013-10-11 13:49:55 -0400 |
|---|---|---|
| committer | Thomas Tsou <tom@tsou.cc> | 2013-10-18 13:10:17 -0400 |
| commit | c1f7c42a33a1125f8b39f53a1b6e1bae38376857 (patch) | |
| tree | fd79543a262281b4cbf04bfb09f305b95a715dd4 /Transceiver52M/sigProcLib.h | |
| parent | 2c282f5e1268146761413a145fd8ae2fb523fa4f (diff) | |
Transceiver52M: Setup dual sample rate transceiver
This patch applies oversampling, when selected with 4 sps,
to the downlink only, while running the receiver with
minimal sampling at 1 sps. These split sample rates allow
us to run a highly accurate downlink signal with minimal
distortion, while keeping receive path channel filtering
on the FPGA.
Without this patch, we oversample the receive path and
require a steep receive filter to get similar adjacent
channel suppression as the FPGA halfband / CIC filter
combination, which comes with a high computational cost.
Signed-off-by: Thomas Tsou <tom@tsou.cc>
Diffstat (limited to 'Transceiver52M/sigProcLib.h')
| -rw-r--r-- | Transceiver52M/sigProcLib.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/Transceiver52M/sigProcLib.h b/Transceiver52M/sigProcLib.h index 109ffa8..516d352 100644 --- a/Transceiver52M/sigProcLib.h +++ b/Transceiver52M/sigProcLib.h @@ -142,14 +142,6 @@ signalVector *convolve(const signalVector *a, unsigned step = 1, int offset = 0); /** - Generate the GSM pulse. - @param sps The number of samples per GSM symbol. - @param symbolLength The size of the pulse. - @return The GSM pulse. -*/ -void generateGSMPulse(int sps, int symbolLength); - -/** Frequency shift a vector. @param y The frequency shifted vector. @param x The vector to-be-shifted. |