Class EphemerisGenApp¶

Defined in File ephemeris_gen_app.h

Inheritance Relationships¶

Base Type¶

public lupnt::LunaNetSubApp (Class LunaNetSubApp)

Class Documentation¶

class EphemerisGenApp : public lupnt::LunaNetSubApp ¶

LunaNet sub-app that generates broadcast ephemeris (precise, short-validity) and almanac (coarse, long-validity) navigation messages from the satellite’s own predicted trajectory.

This is the “navigation-message generation” sub-app anticipated by LunaNetSubApp: attach it to a LunaNetSatApp via AddSubApp to embed broadcast-message generation in the LunaNet satellite routine. On each Step(t), when a refresh is due, it samples the owning agent’s predicted state over the corresponding validity window (Agent::GetStateAt, i.e. it propagates its own orbit forward the way a real satellite would before broadcasting) and fits a LansEphemeris / LansAlmanac, appending the resulting BroadcastMessage.

When no agent is attached (e.g. unit tests or offline generation) the same models can be driven directly via GenerateEphemerisFromArc / GenerateAlmanacFromArc.

Public Functions

explicit EphemerisGenApp(EphemerisGenConfig config = {})¶

virtual void Setup(LunaNetSatApp &app) override¶

virtual void Step(Real t) override¶

virtual void Finish() override¶

const BroadcastMessage &GenerateEphemerisFromArc(double t_gen_s, const VecXd &t_s, const MatXd &rv)¶

Fit and store an ephemeris message from an explicit sampled arc.

Parameters:

t_gen_s – Elapsed time the message is generated / becomes valid [s].
t_s – Sample epochs of the arc [s] (strictly increasing).
rv – Sampled Cartesian states [N x 6].

const BroadcastMessage &GenerateAlmanacFromArc(double t_gen_s, const VecXd &t_s, const MatXd &rv)¶: Fit and store an almanac message from an explicit sampled arc.

inline const std::vector<BroadcastMessage> &GetEphemerisMessages() const¶

inline const std::vector<BroadcastMessage> &GetAlmanacMessages() const¶

const BroadcastMessage *LatestEphemeris(double t_s) const¶: Most recent generated message whose validity window contains t_s (nullptr if none) — mirrors a receiver selecting the currently valid broadcast page.

const BroadcastMessage *LatestAlmanac(double t_s) const¶

inline const EphemerisGenConfig &GetConfig() const¶

inline const LansEphemeris &GetEphemerisModel() const¶

inline const LansAlmanac &GetAlmanacModel() const¶