diff --git a/libraries/dsp/wpfb/src/vhdl/wpfb_pkg.vhd b/libraries/dsp/wpfb/src/vhdl/wpfb_pkg.vhd
index 62105ae77db2b3485fdd871a94a657cf725b13e9..df393099f59b8a03f4552ca659018513b4ca3ad2 100644
--- a/libraries/dsp/wpfb/src/vhdl/wpfb_pkg.vhd
+++ b/libraries/dsp/wpfb/src/vhdl/wpfb_pkg.vhd
@@ -71,11 +71,13 @@ package wpfb_pkg is
   end record;
 
   -----------------------------------------------------------------------------
-  -- Map WPFB parameters to FIL parameter and to FFT parameters
+  -- Map WPFB parameters
   -----------------------------------------------------------------------------
   function func_wpfb_map_wpfb_parameters_to_fil_ppf(g_wpfb : t_wpfb) return t_fil_ppf;
   function func_wpfb_map_wpfb_parameters_to_fft(g_wpfb : t_wpfb) return t_fft;
 
+  function func_wpfb_map_real_input_wpfb_parameters_to_complex_input(g_wpfb : t_wpfb) return t_wpfb;
+
   -----------------------------------------------------------------------------
   -- LOFAR2 subband filter
   -----------------------------------------------------------------------------
@@ -286,6 +288,16 @@ package body wpfb_pkg is
     return c_fft;
   end func_wpfb_map_wpfb_parameters_to_fft;
 
+
+  function func_wpfb_map_real_input_wpfb_parameters_to_complex_input(g_wpfb : t_wpfb) return t_wpfb is
+    variable v_wpfb : t_wpfb := g_wpfb;
+  begin
+    v_wpfb.nof_wb_streams := c_nof_complex * v_wpfb.nof_wb_streams;
+    v_wpfb.use_separate := false;
+    return v_wpfb;
+  end func_wpfb_map_real_input_wpfb_parameters_to_complex_input;
+
+
   function func_wpfb_subband_scale_w(wpfb : t_wpfb) return natural is
   begin
     return wpfb.fft_out_dat_w + wpfb.fft_out_gain_w - (wpfb.fil_in_dat_w + wpfb.fil_backoff_w);