Module combinations 

GNSS observable linear combinations.

The ionosphere-free code and carrier-phase combinations are pure frequency-domain algebra. The operation order is intentionally simple and pinned to the original Sidereon/SciPy oracle recipe: square each carrier first, form gamma = f1^2 / (f1^2 - f2^2), then evaluate gamma * obs1 - (gamma - 1) * obs2 with normal Rust arithmetic.

Re-exports

pub use crate::frequencies::CarrierBand;

pub use crate::frequencies::CarrierFrequency;

pub use crate::frequencies::CarrierPair;

Enums

IonosphereFreeError

Error produced by ionosphere-free combination helpers.

PseudorangeDropReason

Reason a satellite was not included in a paired pseudorange result.

Functions

carrier_frequencies

The full carrier-frequency table for the supported standard pairs.

carrier_frequency_hz

The standard carrier frequency in hertz for a constellation and band.

default_pair

Standard dual-frequency ionosphere-free carrier pair for a constellation.

frequency_hz

Carrier frequency lookup by RINEX/IGS system letter and lower-case band name.

gamma

Ionosphere-free coefficient gamma = f1^2 / (f1^2 - f2^2).

ionosphere_free

Ionosphere-free code or meter-valued phase combination.

ionosphere_free_phase_cycles

Ionosphere-free carrier-phase combination from cycle-valued phase inputs.

ionosphere_free_phase_m

Ionosphere-free carrier-phase combination from meter-valued phase inputs.

ionosphere_free_pseudoranges

Combine two satellite-keyed pseudorange bands into ionosphere-free ranges.

noise_amplification

Equal-variance noise amplification of the ionosphere-free combination.

Type Aliases

CombinedPseudoranges

Ionosphere-free pseudoranges paired by satellite token.

DroppedPseudoranges

Per-satellite reasons for dropped pseudorange combinations.

PseudorangeCombinationResult

Result returned by ionosphere_free_pseudoranges.

PseudorangeObservation

A satellite-tokened pseudorange observation in meters.