mcbts: Add multi-ARFCN channelizing filters
Introduce polyphase channelizer (Rx) and synthesis (Tx) filterbanks,
which serve as the signal processing backend for multi-carrier GSM.
Fast Fourier Transform (FFT) is used internally. FFTW is added as
a new build dependency.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
diff --git a/configure.ac b/configure.ac
index 6c6ca2e..ad6bf9a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -102,6 +102,7 @@
[PKG_CHECK_MODULES(UHD, uhd >= 003.005.004)]
)
AC_DEFINE(USE_UHD, 1, All UHD versions)
+ PKG_CHECK_MODULES(FFTWF, fftw3f)
])
AS_IF([test "x$with_singledb" = "xyes"], [