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Better test, with 2nd order integration

release/4.3a0
dellaert 2015-07-27 18:35:56 +02:00
parent 11d0ad0d78
commit 2007391987
1 changed files with 29 additions and 12 deletions
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41
gtsam/navigation/tests/testImuFactor.cpp
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@ -758,26 +758,43 @@ TEST(ImuFactor, ErrorWithBiasesAndSensorBodyDisplacement) {
ImuFactor::PreintegratedMeasurements pim( ImuFactor::PreintegratedMeasurements pim(
imuBias::ConstantBias(Vector3(0.2, 0.0, 0.0), Vector3(0.0, 0.0, 0.0)), imuBias::ConstantBias(Vector3(0.2, 0.0, 0.0), Vector3(0.0, 0.0, 0.0)),
kMeasuredAccCovariance, kMeasuredOmegaCovariance, kMeasuredAccCovariance, kMeasuredOmegaCovariance,
kIntegrationErrorCovariance); kIntegrationErrorCovariance, true);
pim.integrateMeasurement(measuredAcc, measuredOmega, deltaT); pim.integrateMeasurement(measuredAcc, measuredOmega, deltaT, body_P_sensor);
Matrix expected(9,9); Matrix expected(9,9);
expected << expected <<
0.0001, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,// 0.0026, 0.0, 0.0, 0.005, 0.0, 0.0, 0.0, 0.0, 0.0,//
0.0, 0.0001, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,// 0.0, 0.0026, 0.0, 0.0, 0.005, 0.0, 0.0, 0.0, 0.0,//
0.0, 0.0, 0.0001, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,// 0.0, 0.0, 0.0026, 0.0, 0.0, 0.005, 0.0, 0.0, 0.0,//
0.0, 0.0, 0.0, 0.01, 0.0, 0.0, 0.0, 0.0, 0.0,// 0.005, 0.0, 0.0, 0.01, 0.0, 0.0, 0.0, 0.0, 0.0,//
0.0, 0.0, 0.0, 0.0, 0.01, 0.0, 0.0, 0.0, 0.0,// 0.0, 0.005, 0.0, 0.0, 0.01, 0.0, 0.0, 0.0, 0.0,//
0.0, 0.0, 0.0, 0.0, 0.0, 0.01, 0.0, 0.0, 0.0,// 0.0, 0.0, 0.005, 0.0, 0.0, 0.01, 0.0, 0.0, 0.0,//
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0290687976, 0.0, 0.0,// 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0290780477, 0.0, 9.23468723e-05,//
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0290687976, 0.0,// 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0290688208, 4.62505461e-06,//
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.03; 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 9.23468723e-05, 4.62505461e-06, 0.0299907267;
EXPECT(assert_equal(expected, pim.preintMeasCov(), 1e-7)); EXPECT(assert_equal(expected, pim.preintMeasCov(), 1e-6));
// Create factor // Create factor
ImuFactor factor(X(1), V(1), X(2), V(2), B(1), pim, kGravity, ImuFactor factor(X(1), V(1), X(2), V(2), B(1), pim, kGravity,
kNonZeroOmegaCoriolis); kNonZeroOmegaCoriolis);
// Predict
Pose3 actual_x2;
Vector3 actual_v2;
ImuFactor::Predict(x1, v1, actual_x2, actual_v2, bias, factor.preintegratedMeasurements(),
kGravity, kZeroOmegaCoriolis);
// Regression test with
Rot3 expectedR( //
0.456795409, -0.888128414, 0.0506544554, //
0.889548908, 0.45563417, -0.0331699173, //
0.00637924528, 0.0602114814, 0.998165258);
Point3 expectedT(5.30373101, 0.768972495, -49.9942188);
Vector3 expected_v2(0.107462014, -0.46205501, 0.0115624037);
Pose3 expected_x2(expectedR, expectedT);
EXPECT(assert_equal(expected_x2, actual_x2, 1e-7));
EXPECT(assert_equal(Vector(expected_v2), actual_v2, 1e-7));
Values values; Values values;
values.insert(X(1), x1); values.insert(X(1), x1);
values.insert(V(1), v1); values.insert(V(1), v1);