Added results for Coeffs16384Kaiser-quant-nodc.

libraries/dsp/verify_pfb/tb_tb_verify_pfb_wg.vhd

@@ -56,7 +56,8 @@ END ENTITY tb_tb_verify_pfb_wg;
 
 ARCHITECTURE tb OF tb_tb_verify_pfb_wg IS
 
-  CONSTANT c_fil_coefs  : STRING := "data/Coeffs16384Kaiser-quant_1wb";  -- PFIR coefficients file access
+  --CONSTANT c_fil_coefs  : STRING := "data/Coeffs16384Kaiser-quant_1wb";  -- PFIR coefficients file access
+  CONSTANT c_fil_coefs  : STRING := "data/Coeffs16384Kaiser-quant-nodc_1wb";  -- PFIR coefficients file access
   CONSTANT c_fil_bypass : STRING := "data/run_pfir_coeff_m_bypass_16taps_1024points_16b_1wb";   -- bypass PFIR
   
   SIGNAL tb_end : STD_LOGIC := '0';  -- tb_end is used to end a tb if it cannot end itself, but is not needed for tb_verify_pfb_wg
@@ -157,32 +158,34 @@ gen_ref : IF c_gen_ref GENERATE  --                                  .       .
   -- WPFB                                                            .       .     .     .    .    .     .     .             .   .  .   .   .   .  .   .  .    .  .  .
   u_apertif           : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1001, "WPFB", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 1,  8, 16, 18, 1, 18, 2, '0', 0, 0);
   u_lts_2020_11_23    : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1002, "WPFB", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 1, 14, 16, 18, 1, 18, 2, '0', 0, 0);
-  -- PFB2
+--  -- PFB2
   u_lofar1_12b        : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1003, "PFB2", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 12, 18, 18, 0, 20, 0, '0', 0, 0);
   u_lofar1_14b        : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1004, "PFB2", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 18, 18, 0, 20, 0, '0', 0, 0);
   u_lofar1_14b_22     : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1005, "PFB2", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 18, 18, 0, 22, 0, '0', 0, 0);
   u_lofar1_14b_24     : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1006, "PFB2", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 18, 18, 0, 24, 0, '0', 0, 0);
-  -- WPFB
+--  -- WPFB
   u_wpfb_stage18      : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1007, "WPFB", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 17, 18, 0, 18, 1, '0', 0, 0);
   u_wpfb_stage20      : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1008, "WPFB", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 17, 18, 0, 20, 1, '0', 0, 0);
   u_wpfb_stage22      : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1009, "WPFB", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 17, 18, 0, 22, 1, '0', 0, 0);
   u_wpfb_stage23      : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1010, "WPFB", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 17, 18, 0, 23, 1, '0', 0, 0);
   u_wpfb_stage24      : ENTITY work.tb_verify_pfb_wg GENERIC MAP (1011, "WPFB", 61.0, 61.0, 1.0, 0.0,  0.0,  0.0,  c_fil_coefs, 16, 0, 14, 17, 18, 0, 24, 1, '0', 0, 0);
 -- Results:
--- WPFB
---tb-1001 . wpfb_measured_proc_gain_a_dB =   25.54 [dB]
---tb-1002 . wpfb_measured_proc_gain_a_dB =   -0.80 [dB]
+--                                           Coeffs16384Kaiser-quant
+--                                            .           Coeffs16384Kaiser-quant-nodc
+-- WPFB                                       .            .
+--tb-1001 . wpfb_measured_proc_gain_a_dB =   25.54 [dB]   25.65 [dB]
+--tb-1002 . wpfb_measured_proc_gain_a_dB =   -0.80 [dB]    2.67 [dB]
 -- PFB2
---tb-1003 . wpfb_measured_proc_gain_a_dB =   23.18 [dB], = u_lofar1_12b
---tb-1004 . wpfb_measured_proc_gain_a_dB =   15.24 [dB], = u_lofar1_14b
---tb-1005 . wpfb_measured_proc_gain_a_dB =   17.03 [dB], = u_lofar1_14b_22, improvement is < 3 dB
---tb-1006 . wpfb_measured_proc_gain_a_dB =   17.00 [dB], = u_lofar1_14b_24
+--tb-1003 . wpfb_measured_proc_gain_a_dB =   23.18 [dB]             , = u_lofar1_12b
+--tb-1004 . wpfb_measured_proc_gain_a_dB =   15.24 [dB]             , = u_lofar1_14b
+--tb-1005 . wpfb_measured_proc_gain_a_dB =   17.03 [dB]             , = u_lofar1_14b_22, improvement is < 3 dB
+--tb-1006 . wpfb_measured_proc_gain_a_dB =   17.00 [dB]             , = u_lofar1_14b_24
 -- WPFB
---tb-1007 . wpfb_measured_proc_gain_a_dB =    6.11 [dB], = u_wpfb_stage18
---tb-1008 . wpfb_measured_proc_gain_a_dB =   12.38 [dB], = u_wpfb_stage20 : ~3.1 dB per extra g_fft_stage_dat_w bit
---tb-1009 . wpfb_measured_proc_gain_a_dB =   18.79 [dB], = u_wpfb_stage22 : ~3.2 dB per extra g_fft_stage_dat_w bit
---tb-1010 . wpfb_measured_proc_gain_a_dB =   19.86 [dB], = u_wpfb_stage23 : ~1.1 dB per extra g_fft_stage_dat_w bit
---tb-1011 . wpfb_measured_proc_gain_a_dB =   20.08 [dB], = u_wpfb_stage24 : ~0.2 dB per extra g_fft_stage_dat_w bit
+--tb-1007 . wpfb_measured_proc_gain_a_dB =    6.11 [dB]    9.94 [dB], = u_wpfb_stage18
+--tb-1008 . wpfb_measured_proc_gain_a_dB =   12.38 [dB]   16.48 [dB], = u_wpfb_stage20 : ~3.1 dB per extra g_fft_stage_dat_w bit
+--tb-1009 . wpfb_measured_proc_gain_a_dB =   18.79 [dB]   24.29 [dB], = u_wpfb_stage22 : ~3.2 dB per extra g_fft_stage_dat_w bit
+--tb-1010 . wpfb_measured_proc_gain_a_dB =   19.86 [dB]   26.58 [dB], = u_wpfb_stage23 : ~1.1 dB per extra g_fft_stage_dat_w bit
+--tb-1011 . wpfb_measured_proc_gain_a_dB =   20.08 [dB]   28.17 [dB], = u_wpfb_stage24 : ~0.2 dB per extra g_fft_stage_dat_w bit
 --Conclusion:
 --* For g_fft_stage_dat_w <= 22 the processing gain increases ~3 dB per extra g_fft_stage_dat_w bit, therefore choose 22, 23 or 24, more than 24 bit has not benefit.
 END GENERATE;