From d2d768ce49f7081316a98ddd50c775a23ac758eb Mon Sep 17 00:00:00 2001
From: Eric Kooistra <kooistra@astron.nl>
Date: Fri, 4 Mar 2022 12:09:28 +0100
Subject: [PATCH] Added c_sdp_wpfb_fir_filter_dc_gain from MATLAB sim.
---
applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd b/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd
index ec4977bbb6..68f4fc8427 100644
--- a/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd
+++ b/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd
@@ -28,8 +28,9 @@
-- . See Document: L3 SDP Decision: SDP Parameter definitions.
-- https://support.astron.nl/confluence/display/L2M/L3+SDP+Decision%3A+SDP+Parameter+definitions
-------------------------------------------------------------------------------
-LIBRARY ieee, common_lib, rTwoSDF_lib, fft_lib, filter_lib, wpfb_lib;
+LIBRARY IEEE, common_lib, rTwoSDF_lib, fft_lib, filter_lib, wpfb_lib;
USE IEEE.std_logic_1164.ALL;
+USE IEEE.math_real.ALL;
USE common_lib.common_pkg.ALL;
USE common_lib.common_mem_pkg.ALL;
USE common_lib.common_field_pkg.ALL;
@@ -154,6 +155,10 @@ PACKAGE sdp_pkg is
true, 54, c_sdp_W_statistic_sz, 195313, c_fft_pipeline, c_fft_pipeline,
c_fil_ppf_pipeline);
+ -- DC gain of WPFB FIR filter obtained from applications/lofar2/model/run_pfir_coef.m using application = 'lofar_subband'
+ -- Not used in RTL, only used in test benches to verify expected suband levels
+ CONSTANT c_sdp_wpfb_fir_filter_dc_gain : REAL := 0.994817;
+
-----------------------------------------------------------------------------
-- Statistics offload
-----------------------------------------------------------------------------
--
GitLab