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flightgear/test_suite/unit_tests/Instrumentation/test_navRadio.cxx
legoboyvdlp R e76787fa62 Add test for Heathrow ILS 27L
To try and diagnose user problems intercepting glideslope at 4000 feet
+ 12 miles.
2020-05-29 16:42:41 +01:00

478 lines
21 KiB
C++

#include "test_navRadio.hxx"
#include <memory>
#include <cstring>
#include "test_suite/FGTestApi/testGlobals.hxx"
#include "test_suite/FGTestApi/NavDataCache.hxx"
#include <Navaids/NavDataCache.hxx>
#include <Navaids/navrecord.hxx>
#include <Navaids/navlist.hxx>
#include <Instrumentation/navradio.hxx>
// Set up function for each test.
void NavRadioTests::setUp()
{
FGTestApi::setUp::initTestGlobals("navradio");
FGTestApi::setUp::initNavDataCache();
}
// Clean up after each test.
void NavRadioTests::tearDown()
{
FGTestApi::tearDown::shutdownTestGlobals();
}
void NavRadioTests::setPositionAndStabilise(FGNavRadio* r, const SGGeod& g)
{
FGTestApi::setPosition(g);
for (int i=0; i<60; ++i) {
r->update(0.1);
}
}
void NavRadioTests::testBasic()
{
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
// needed for the radio to power up
globals->get_props()->setDoubleValue("systems/electrical/outputs/nav", 6.0);
node->setDoubleValue("frequencies/selected-mhz", 113.8);
SGGeod pos = SGGeod::fromDegFt(-3.352780, 55.499199, 20000);
setPositionAndStabilise(r.get(), pos);
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("operable"));
CPPUNIT_ASSERT(!strcmp("TLA", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("in-range"));
}
void NavRadioTests::testCDIDeflection()
{
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
// needed for the radio to power up
globals->get_props()->setDoubleValue("systems/electrical/outputs/nav", 6.0);
node->setDoubleValue("frequencies/selected-mhz", 113.55);
node->setDoubleValue("radials/selected-deg", 25);
FGPositioned::TypeFilter f{FGPositioned::VOR};
FGNavRecordRef nav = fgpositioned_cast<FGNavRecord>(FGPositioned::findClosestWithIdent("MCT", SGGeod::fromDeg(-2.26, 53.3), &f));
// twist of MCT is 5.0, so we use a bearing of 20 here, not 25
SGGeod posOnRadial = SGGeodesy::direct(nav->geod(), 20.0, 10 * SG_NM_TO_METER);
posOnRadial.setElevationFt(10000);
setPositionAndStabilise(r.get(), posOnRadial);
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("operable"));
CPPUNIT_ASSERT(!strcmp("MCT", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("crosstrack-error-m"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(!node->getBoolValue("to-flag"));
// move off course
SGGeod posOffRadial = SGGeodesy::direct(nav->geod(), 15.0, 20 * SG_NM_TO_METER); // 5 degress off
posOffRadial.setElevationFt(12000);
setPositionAndStabilise(r.get(), posOffRadial);
CPPUNIT_ASSERT_DOUBLES_EQUAL(5.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
double xtkE = sin(5.0 * SG_DEGREES_TO_RADIANS) * 20 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(!node->getBoolValue("to-flag"));
posOffRadial = SGGeodesy::direct(nav->geod(), 28.0, 30 * SG_NM_TO_METER); // 8 degress off
posOffRadial.setElevationFt(16000);
setPositionAndStabilise(r.get(), posOffRadial);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-8.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-0.8, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
xtkE = sin(-8.0 * SG_DEGREES_TO_RADIANS) * 30 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
// move more than ten degrees off course
posOffRadial = SGGeodesy::direct(nav->geod(), 33.0, 40 * SG_NM_TO_METER); // 13 degress off
posOffRadial.setElevationFt(16000);
setPositionAndStabilise(r.get(), posOffRadial);
// pegged to full deflection
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-10.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
// cross track error is computed based on true deflection, not clamped
xtkE = sin(-13.0 * SG_DEGREES_TO_RADIANS) * 40 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(!node->getBoolValue("to-flag"));
// try on the TO side of the station
// let's use Perth VOR, but the Australian one to check southern
// hemisphere operation
node->setDoubleValue("frequencies/selected-mhz", 113.7);
node->setDoubleValue("radials/selected-deg", 42.0); // twist is -2.0
CPPUNIT_ASSERT(!strcmp("113.70", node->getStringValue("frequencies/selected-mhz-fmt")));
auto perthVOR = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("PH", SGGeod::fromDeg(115.95, -31.9), &f));
SGGeod p = SGGeodesy::direct(perthVOR->geod(), 220.0, 20 * SG_NM_TO_METER); // on the reciprocal radial
p.setElevationFt(12000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT(!strcmp("PH", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(40.0, node->getDoubleValue("heading-deg"), 0.5);
// actual radial has twist subtracted
CPPUNIT_ASSERT_DOUBLES_EQUAL(222.0, node->getDoubleValue("radials/actual-deg"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// off course on the TO side
p = SGGeodesy::direct(perthVOR->geod(), 227.0, 100 * SG_NM_TO_METER);
p.setElevationFt(18000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(47.0, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(229.0, node->getDoubleValue("radials/actual-deg"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(7.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.7, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
xtkE = sin(7.0 * SG_DEGREES_TO_RADIANS) * 100 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
}
void NavRadioTests::testILSBasic()
{
// radio setup
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
globals->get_props()->setDoubleValue("systems/electrical/outputs/nav", 6.0);
// test basic ILS: KSFO 28L
FGPositioned::TypeFilter f{{FGPositioned::VOR, FGPositioned::ILS, FGPositioned::LOC}};
FGNavRecordRef ils = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("ISFO", SGGeod::fromDeg(-112, 37.6), &f));
CPPUNIT_ASSERT(ils->type() == FGPositioned::ILS);
node->setDoubleValue("frequencies/selected-mhz", 109.55);
// node->setDoubleValue("radials/selected-deg", 42.0); // twist is -2.0
CPPUNIT_ASSERT(!strcmp("109.55", node->getStringValue("frequencies/selected-mhz-fmt")));
// note we need full precision here, due to ILS sensitivity
SGGeod p = SGGeodesy::direct(ils->geod(), 117.932, 10 * SG_NM_TO_METER);
p.setElevationFt(2500);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT(!strcmp("ISFO", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("radials/target-radial-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(117.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("crosstrack-error-m"), 10.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// 1 degree offset
p = SGGeodesy::direct(ils->geod(), 116.932, 6 * SG_NM_TO_METER);
p.setElevationFt(1500);
setPositionAndStabilise(r.get(), p);
const double locWidth = ils->localizerWidth();
const double deflectionScale = 20.0 / locWidth; // 20 degrees is full VOR swing (-10 to +10 degrees)
CPPUNIT_ASSERT(!strcmp("ISFO", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("radials/target-radial-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(296.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(116.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.0 * deflectionScale, node->getDoubleValue("heading-needle-deflection"), 0.1);
double xtkE = sin(-1.0 * SG_DEGREES_TO_RADIANS) * 6.0 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 1.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// test pegged (4 degrees off course)
p = SGGeodesy::direct(ils->geod(), 121.932, 3 * SG_NM_TO_METER);
p.setElevationFt(600);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(301.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(121.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(10.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
xtkE = sin(4.0 * SG_DEGREES_TO_RADIANS) * 3.0 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 1.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// also check ILS back course
// 1 degree offset on the BC
p = SGGeodesy::direct(ils->geod(), 298.932, 4 * SG_NM_TO_METER);
p.setElevationFt(1500);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT(!strcmp("ISFO", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("radials/target-radial-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(118.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(298.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.0 * deflectionScale, node->getDoubleValue("heading-needle-deflection"), 0.1);
xtkE = sin(-1.0 * SG_DEGREES_TO_RADIANS) * 4.0 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 1.0);
// these don't change for an ILS
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
}
void NavRadioTests::testGS()
{
// radio setup
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
globals->get_props()->setDoubleValue("systems/electrical/outputs/nav", 6.0);
// EDDT 28R
FGPositioned::TypeFilter f{FGPositioned::GS};
FGNavRecordRef gs = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("ITLW", SGGeod::fromDeg(13, 52), &f));
CPPUNIT_ASSERT(gs->type() == FGPositioned::GS);
node->setDoubleValue("frequencies/selected-mhz", 110.10);
CPPUNIT_ASSERT(!strcmp("110.10", node->getStringValue("frequencies/selected-mhz-fmt")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(gs->glideSlopeAngleDeg(), 3.0, 0.001);
double gsAngleRad = gs->glideSlopeAngleDeg() * SG_DEGREES_TO_RADIANS;
/////////////
// derive the GS geometry in cartesian vectors, to match what
// navradio.cxx does
SGGeod aboveGS = gs->geod();
aboveGS.setElevationM(gs->geod().getElevationM() + 100.0);
SGVec3d gsVerticalAxis = SGVec3d::fromGeod(aboveGS) - gs->cart();
// intentionally different approach to what navradio uses
gsVerticalAxis *= 0.01; // make it per meter, since we used 100m above
// dervice the baseline
SGQuatd baseLineRot = SGQuatd::fromLonLat(gs->geod()) * SGQuatd::fromHeadAttBankDeg(80.828, 0, 0);
SGVec3d gsAltAxis = baseLineRot.backTransform(SGVec3d(1.0, 0.0, 0.0));
const SGVec3d gsCart = gs->cart();
//////////////////
SGVec3d radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 8 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 8 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT(!strcmp("ITLW", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(3.0, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// 0.5 degree offset above
gsAngleRad = (gs->glideSlopeAngleDeg() + 0.5) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 4 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 4 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT(!strcmp("ITLW", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(3.5, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-2.5, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-0.714, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// 1 degree below (danger!)
gsAngleRad = (gs->glideSlopeAngleDeg() - 1.0) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 2 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 2 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(2.0, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(3.5, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// false course above, reversed
gsAngleRad = (gs->glideSlopeAngleDeg() + 3.0) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 5 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 5 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(6.0, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// false course above, reversed, 0.35 offset below
gsAngleRad = (gs->glideSlopeAngleDeg() + 2.65) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 3 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 3 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(5.65, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.75, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-0.5, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
}
void NavRadioTests::testILSFalseCourse()
{
// also GS false lobes
}
void NavRadioTests::testILSPaired()
{
// EGPH and countless more
}
void NavRadioTests::testILSAdjacentPaired()
{
// eg KJFK
}
void NavRadioTests::testGlideslopeLongDistance()
{
// radio setup
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
globals->get_props()->setDoubleValue("systems/electrical/outputs/nav", 6.0);
// EGLL 27L
FGPositioned::TypeFilter f{FGPositioned::GS};
FGNavRecordRef gs = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("ILL", SGGeod::fromDeg(0, 51), &f));
CPPUNIT_ASSERT(gs->type() == FGPositioned::GS);
node->setDoubleValue("frequencies/selected-mhz", 109.50);
CPPUNIT_ASSERT(!strcmp("109.50", node->getStringValue("frequencies/selected-mhz-fmt")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(gs->glideSlopeAngleDeg(), 3.0, 0.001);
double gsAngleRad = gs->glideSlopeAngleDeg() * SG_DEGREES_TO_RADIANS;
// standard approach (per charts)
SGGeod p = SGGeodesy::direct(gs->geod(), 90, 7.5 * SG_NM_TO_METER);
p.setElevationFt(2500);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("gs-in-range"));
// normal approach
p = SGGeodesy::direct(gs->geod(), 90, 9 * SG_NM_TO_METER);
p.setElevationFt(3000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("gs-in-range"));
// in our current nav data, the GS range is defined as 10nm, so the gs-in-range
// is false for these
// 4000 feet intercept
p = SGGeodesy::direct(gs->geod(), 90, 12 * SG_NM_TO_METER);
p.setElevationFt(4000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_EQUAL(false, node->getBoolValue("gs-in-range"));
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("in-range"));
// further back
p = SGGeodesy::direct(gs->geod(), 90, 17.5 * SG_NM_TO_METER);
p.setElevationFt(4000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_EQUAL(false, node->getBoolValue("gs-in-range"));
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("in-range"));
// really pushing it
p = SGGeodesy::direct(gs->geod(), 90, 25 * SG_NM_TO_METER);
p.setElevationFt(4000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_EQUAL(false, node->getBoolValue("gs-in-range"));
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("in-range"));
}