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work on MPI

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This commit is contained in:
Silas Oettinghaus
2026-07-13 15:25:45 +02:00
parent a6cf742121
commit ef0a74cb7f
16 changed files with 2894 additions and 705 deletions
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119
Tests/04_DSP/Equalizer/FFE_test.m
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@@ -14,10 +14,13 @@ classdef FFE_test < IMDDTestCase
testCase.verifyEqual(ffe.epochs_dd, 5);
testCase.verifyFalse(logical(ffe.optimize_dc_tracking_params));
testCase.verifyEqual(ffe.dc_tracking_optimization_delay_weight, 1e-3);
testCase.verifyEqual(ffe.dc_tracking_persistence_gain, 0);
testCase.verifyEqual(ffe.dc_tracking_power_exponent, 2);
testCase.verifyEqual(ffe.dc_avg_bufferlength_a1, 0);
testCase.verifyEqual(ffe.dc_avg_update_blocklength_a1, 0);
testCase.verifyEqual(ffe.dc_smoothing_a1, 0);
testCase.verifyEqual(ffe.dc_level_avg_bufferlength_a2, 0);
testCase.verifyEqual(ffe.dc_level_update_blocklength_a2, 0);
testCase.verifyEqual(ffe.dc_smoothing_a2, 0);
testCase.verifyEqual(ffe.dc_level_weights_a2, 0);
testCase.verifyEqual(ffe.dc_tracking_buffer_len, 1);
@@ -101,6 +104,76 @@ classdef FFE_test < IMDDTestCase
testCase.verifyEqual(ffe.e_dc, 0.19, "AbsTol", 1e-12);
end
function dcTrackingUnbufferedPathUpdatesEverySymbol(testCase)
x = zeros(4, 1);
d = ones(4, 1);
ffe = FFE( ...
"sps", 1, ...
"order", 1, ...
"dc_tracking_mu", 0.1, ...
"dc_tracking_buffer_len", 1, ...
"dd_mode", 0, ...
"adaption_technique", adaption_method.lms);
ffe.constellation = unique(d);
ffe.equalize(x, d, 0, 1, numel(x), true, false);
testCase.verifyEqual(ffe.e_dc, 1 - 0.9^4, "AbsTol", 1e-12);
end
function dcTrackingBlockUpdateUsesMeanBlockError(testCase)
ffe = FFE("dc_tracking_mu", 0.1);
[e_dc_next,stats] = ffe.dcTrackingBlockUpdate(0.5, [1; 2; 3]);
testCase.verifyEqual(e_dc_next, 0.7, "AbsTol", 1e-12);
testCase.verifyEqual(stats.err_mean, 2, "AbsTol", 1e-12);
testCase.verifyEqual(stats.mu_eff, 0.1, "AbsTol", 1e-12);
testCase.verifyEqual(stats.update, 0.2, "AbsTol", 1e-12);
end
function dcTrackingBlockUpdateDoesNotSuppressLargeErrorPower(testCase)
ffe = FFE("dc_tracking_mu", 0.1);
[e_dc_next,stats] = ffe.dcTrackingBlockUpdate(0, [10; 10]);
testCase.verifyEqual(e_dc_next, 1, "AbsTol", 1e-12);
testCase.verifyEqual(stats.err_mean, 10, "AbsTol", 1e-12);
testCase.verifyEqual(stats.mu_eff, 0.1, "AbsTol", 1e-12);
end
function dcTrackingBlockUpdateCanBoostPersistentMean(testCase)
ffe = FFE("dc_tracking_mu", 0.1);
[e_dc_next,stats] = ffe.dcTrackingBlockUpdate(0, [2; 2; 2], ...
"persistence_gain", 1);
testCase.verifyEqual(e_dc_next, 0.4, "AbsTol", 1e-12);
testCase.verifyEqual(stats.persistence_scale, 1, "AbsTol", 1e-12);
testCase.verifyEqual(stats.mu_eff, 0.2, "AbsTol", 1e-12);
end
function dcTrackingLoopUsesBlockPersistenceGain(testCase)
x = zeros(4, 1);
d = ones(4, 1);
ffe = FFE( ...
"sps", 1, ...
"order", 1, ...
"dc_tracking_mu", 0.1, ...
"dc_tracking_adaptive_enabled", true, ...
"dc_tracking_persistence_gain", 1, ...
"dc_tracking_buffer_len", 2, ...
"dd_mode", 0, ...
"adaption_technique", adaption_method.lms);
ffe.constellation = unique(d);
ffe.equalize(x, d, 0, 1, numel(x), true, false);
testCase.verifyEqual(ffe.e_dc, 0.36, "AbsTol", 1e-12);
end
function ffeBufferDelaysTapUpdateUntilBlockBoundary(testCase)
x = ones(4, 1);
d = ones(4, 1);
@@ -181,6 +254,28 @@ classdef FFE_test < IMDDTestCase
testCase.verifyEqual(ffe.debug_struct.dc_avg_offset, expected_offset, "AbsTol", 1e-12);
end
function dcAvgA1UpdateBlocklengthOneRefreshesEverySymbol(testCase)
x = (1:4).';
d = zeros(4, 1);
expected_offset = [0, 1, 1.5, 2];
expected_y = [1; 1; 1.5; 2];
ffe = FFE( ...
"sps", 1, ...
"order", 1, ...
"dc_avg_bufferlength_a1", 3, ...
"dc_avg_update_blocklength_a1", 1, ...
"save_debug", true, ...
"dd_mode", 0, ...
"adaption_technique", adaption_method.lms);
ffe.e = 1;
[y,~] = ffe.equalize(x, d, 0, 1, numel(x), true, false);
testCase.verifyEqual(y, expected_y, "AbsTol", 1e-12);
testCase.verifyEqual(ffe.debug_struct.dc_avg_offset, expected_offset, "AbsTol", 1e-12);
end
function dcAvgA1WarnsWhenCombinedWithDcTracking(testCase)
testCase.verifyWarning(@() FFE( ...
"dc_avg_bufferlength_a1", 3, ...
@@ -211,6 +306,30 @@ classdef FFE_test < IMDDTestCase
testCase.verifyEqual(ffe.debug_struct.dc_level_valid_count, [0, 0, 2, 2]);
end
function dcLevelAvgA2UpdateBlocklengthOneRefreshesEverySymbol(testCase)
x = (1:4).';
d = zeros(4, 1);
ffe = FFE( ...
"sps", 1, ...
"order", 1, ...
"dc_level_avg_bufferlength_a2", 2, ...
"dc_level_update_blocklength_a2", 1, ...
"dc_level_weights_a2", 1, ...
"save_debug", true, ...
"dd_mode", 0, ...
"adaption_technique", adaption_method.lms);
ffe.e = 1;
ffe.constellation = 0;
[y,~] = ffe.equalize(x, d, 0, 1, numel(x), true, false);
testCase.verifyEqual(y, [1; 1.5; 1.5; 1.5], "AbsTol", 1e-12);
testCase.verifyEqual(ffe.debug_struct.dc_level_mpi_est, [0, 1, 1.5, 2.5], "AbsTol", 1e-12);
testCase.verifyEqual(ffe.debug_struct.dc_level_weight, [0, 0.5, 1, 1], "AbsTol", 1e-12);
testCase.verifyEqual(ffe.debug_struct.dc_level_valid_count, [0, 1, 2, 2]);
end
function dcLevelAvgA2UsesVectorWeightsInConstellationOrder(testCase)
x = [1; 3; 1; 4];
d = [0; 2; 0; 2];